1 About the Project

The project described below encompasses:

  • Data collection of Kickstarter projects and creators
  • Data cleaning
  • Exploration of datasets
  • Analysis of unstructured text data
  • Machine learning algoriths to predict project success

From our analysis, we seek to make recommendations to entrepreneurs, regarding when and how to employ crowdfunding for project financing.

1.1 Croudfunding

The phenomenon of crowdfunding, an alternative financing approach, involves raising funds for a new business ventures via small amounts of capital from a large number of individuals. Crowdfunding is a relatively new phenomenon enabled by wide access to social media and internet-based financial technology services (Fintech)., It makes obtaining funding more accessible for entrepreneurs and small businesses, as compared to traditional banking and lending services.

Little academic research has been conducted on crowdfunding, and there are many interesting areas for investigation. From a financial perspective, it is disrupting the small- and medium- enterprise (SME) lending market. Economically, it may be changing the prevalence and makeup of SMEs. In terms of marketing, it gives consumers a greater say in the products they would like to see available, but also exposes them to increased risk. Regarding information and technology, it is enabling innovation through a public platform.

2 Data Collection and Cleaning

Raw data were obtained from Kickstarter using a custom python web scraping function. These data included 50,596 projects and 120 variables pertaining to the projects and their creators from the launch of Kickstarter in 2009 through December 2013.

Of these projects, possible outcome states included failed, succesful, suspended, canceled, and purged. We excluded 1,246 projects with suspended, canceled, or purged outcome states. We excluded four additional projects whose funding state is inaccurate in terms of the amount pledged (e.g., state is listed as failed when the amout pledged exceeded the goal). The final dataset for analysis contained 49,350 projects.

Of the original 120 variables, 41 contained meaningful information for analyses. Selecting from, transforming, and performing additional computations resulted in 29 variables used in subsequent exploratory analysis and machine learning. These variables are described in the Data Dictionary below.

3 Key Findings

3.1 Machine Learning Predictions

We set out on this project to answer one question, “Can we use machine learning to predict which Kickstarter projects will get funded?” As it turns out, we can! Using relatively simple machine learning techniques and feature engineering, we raised our baseline accuracy from 56% to 70% (a 25% improvement)! Firstly, it is essential to establish a baseline metric for success. Given that in our collected data projects were funded at a rate of 56%, a model in the absolute simplest version would predict that every project was funded and be correct 56% of the time. For our predictions to have any value, we must beat this benchmark. During our exploratory analysis, we discovered a variable with exciting implications, staff pick. As machine learning applications become more widely used and increase in efficacy, often the benchmark is, “Can it do better than a human?” staff_pick serves as a proxy for the best human judgment has to offer with 84% receiving funding. You can check them out: Kickstarter - Projects We Love

df_engr %>%
  group_by(staff_pick) %>%
    summarise(n(), mean(funded)) %>% 
  ungroup(staff_pick)
## # A tibble: 2 x 3
##   staff_pick `n()` `mean(funded)`
##        <dbl> <int>          <dbl>
## 1          0 44081          0.524
## 2          1  5269          0.842

Kickstarter staff clearly has an eye for promising projects. However, predicting project success anywhere near this rate is likely impossible. Projects fortunate enough to be a staff_pick get prominently featured on the website, newsletters, and blogs. We do not doubt that such promotion materially effects the chance a project is funded.

Scoping our target prediction accuracy range to 56-84%, we began construction models. We built a LASSO Regression and Decision Tree models. Incorporating variables about the campaign such as goal, rewards, category, and usa along with information from the creator’s profile such as social_media_count both models achieved an accuracy rate of ~70%–right in the middle of our target range.


3.2 percent_funded

Percent funded is defined as the amount pledged by the end of a campaign divided by the goal amount specified at the beginning of the campaign. Our data shows an immense range, from projects that received no funding at all to one that received four million perecent.

Initially, we thought percent funded would be a good continuous outcome variable for predictive modeling. It is more precise than binary classification, which required selecting a somewhat arbitrary decision threshold. However, plotting the histogram shows that the data has a non-normal distribution. The distribution shows that most projects over ~75% of their goal wind up being successful. Because of this pattern, percent_funded was unsuitable for predictive modeling. This distribution also prevented conducting any natural experiemnts, such as regression discontinuity, to determine differences between barely-failed and barely-successful projects.

Further online research showed that there may be outside manipulation happening due to Kickstarter promotions of projects that are near their goals. In addition, personal donations by the creators and/or creators personal connections may play a role in generating the observed distribution.


3.3 Influence Probability of Success During the Campaign

3.3.1 updates_count

3.3.2 comments_count

4 Machine Learning Models

Everyone knows machine learning is all the rage today. But many don’t realize when it comes to doing data science, it is often the easiest and least time-consuming part of the project. This project was no exception. Regardless, at the end of it all, we gotta make some predictions. Based on the collected projects, we observed that 55.9% of projects were funded. As such, we could achieve that accuracy level by predicting every project is funded. This is, therefore, the baseline for which our model must surpass to begin providing value. We decided to use two models that we enjoy working with, LASSO and Decision Tree. There is room to expand the complexity of the project by considering a more robust assortment of models, however, extracting the last bit of accuracy was not our goal. Both models acheived an aproximately identical accuracy rate in the test sample of 70%.

4.1 LASSO

LASSO is a type of linear regression model. Its unique feature is that it has a mechanism to avoid overfitting by adding a penalty term for each variable it uses. Based on prior experience with LASSO, we expected to see it decide not to use many of the features we gave it. We were surprised to see coefficients for every variable! This phenomenon is likely driven by both the size of our dataset (which increases the statistical significance of any factor) and our intuitive understanding of engineering variables with predictive power. During our exploratory analysis, we observed many of the continuous variables did not appear to be linear. We, therefore, decided to use the quantile versions of goal, description_length, and reward_length. This allows LASSO to treat each group independently from the others, emulating a more complex function identification.

train_y <- train$funded
train_x <- model.matrix(funded ~ 
  campaign_duration +
  usa +
  social_media_count +
  photo_key +
  video_status +
  mo_launched +
  category +
  goal_20 +
  description_length_10 +
  reward_length_10, data = train)


test_y <- test$funded
test_x <- model.matrix(funded ~ 
  campaign_duration +
  usa +
  social_media_count +
  photo_key +
  video_status +
  mo_launched +
  category +
  goal_20 +
  description_length_10 +
  reward_length_10, data = test)

cvfit <- cv.glmnet(x=train_x, y=train_y, alpha = 1)
coef(cvfit, s = "lambda.min")
## 71 x 1 sparse Matrix of class "dgCMatrix"
##                                                     1
## (Intercept)                               0.664914095
## (Intercept)                               .          
## campaign_duration                        -0.001999695
## usa                                       0.130496091
## social_media_count1                       0.007694106
## social_media_count2                      -0.018798148
## social_media_count3                      -0.012401064
## photo_key                                -0.325786082
## video_status                              0.114512423
## mo_launched02                             0.012042709
## mo_launched03                             0.009070564
## mo_launched04                            -0.005003108
## mo_launched05                            -0.032815830
## mo_launched06                            -0.020027388
## mo_launched07                            -0.042405213
## mo_launched08                            -0.044413291
## mo_launched09                            -0.020568204
## mo_launched10                            -0.019607878
## mo_launched11                            -0.022795763
## mo_launched12                            -0.030831188
## categorycomics                            0.404898773
## categorycrafts                            0.305221540
## categorydance                             0.296892593
## categorydesign                            0.291811031
## categoryfashion                           0.469312227
## categoryfilm&video                        0.175696086
## categoryfood                              0.470958744
## categorygames                            -0.032333145
## categoryjournalism                        0.518167715
## categorymusic                             0.086738376
## categoryphotography                       0.448134568
## categorypublishing                       -0.092499720
## categorytechnology                        0.050521804
## categorytheater                           0.434534961
## goal_20(500,750]                         -0.057788659
## goal_20(750,1e+03]                       -0.117671705
## goal_20(1e+03,1.5e+03]                   -0.131514952
## goal_20(1.5e+03,1.8e+03]                 -0.129787711
## goal_20(1.8e+03,2e+03]                   -0.179015169
## goal_20(2e+03,2.5e+03]                   -0.201020201
## goal_20(2.5e+03,3e+03]                   -0.205210875
## goal_20(3e+03,3.5e+03]                   -0.222480198
## goal_20(3.5e+03,4.5e+03]                 -0.263936072
## goal_20(4.5e+03,5e+03]                   -0.325905098
## goal_20(5e+03,5.2e+03]                   -0.392920567
## goal_20(5.2e+03,7e+03]                   -0.343285549
## goal_20(7e+03,8e+03]                     -0.349492016
## goal_20(8e+03,1e+04]                     -0.414197836
## goal_20(1e+04,1.2e+04]                   -0.433992904
## goal_20(1.2e+04,1.6e+04]                 -0.466483730
## goal_20(1.6e+04,2.5e+04]                 -0.525832603
## goal_20(2.5e+04,5e+04]                   -0.614624699
## goal_20(5e+04,2.15e+07]                  -0.752777020
## description_length_10(754,1.11e+03]       0.047569711
## description_length_10(1.11e+03,1.44e+03]  0.094708324
## description_length_10(1.44e+03,1.81e+03]  0.115029118
## description_length_10(1.81e+03,2.22e+03]  0.138664965
## description_length_10(2.22e+03,2.74e+03]  0.166152398
## description_length_10(2.74e+03,3.46e+03]  0.170785197
## description_length_10(3.46e+03,4.58e+03]  0.175105438
## description_length_10(4.58e+03,6.64e+03]  0.228388846
## description_length_10(6.64e+03,1.4e+05]   0.287361125
## reward_length_10(2.62e+03,3.71e+03]       0.063860414
## reward_length_10(3.71e+03,4.61e+03]       0.111644718
## reward_length_10(4.61e+03,5.49e+03]       0.139014324
## reward_length_10(5.49e+03,6.43e+03]       0.181298204
## reward_length_10(6.43e+03,7.52e+03]       0.198659617
## reward_length_10(7.52e+03,8.86e+03]       0.211436713
## reward_length_10(8.86e+03,1.08e+04]       0.259518926
## reward_length_10(1.08e+04,1.45e+04]       0.271572314
## reward_length_10(1.45e+04,1.37e+05]       0.351476224

Accuracty of LASSO in Test Set

## [1] 0.7014184

4.2 Decision Tree

Decision trees are a classification model that finds breakpoints in the data that classify every (remaining) observation in a binary fashion. One of the major advantages is that it does not assume variables to behave linearly. As such, you will notice we did place the continuous variables into quantiles for the tree as it will find the breakpoints itself.

set.seed(1)
tree <- rpart(funded ~ 
  campaign_duration +
  usa +
  social_media_count +
  photo_key +
  video_status +
  mo_launched +
  category +
  goal +
  description_length +
  reward_length, data = train)

4.2.1 Simple tree

In this simple tree, we used the default complexity parameter of 1%. This limits how many nodes the decision tree will grow. While this is not our most accurate model, its simplicity clearly illustrates how the tree works. We also found it impressive that using only three levels goal, reward, and category, it was able to predict funding with ~65% accuracy.

## Call:
## rpart(formula = funded ~ campaign_duration + usa + social_media_count + 
##     photo_key + video_status + mo_launched + category + goal + 
##     description_length + reward_length, data = train)
##   n= 39480 
## 
##           CP nsplit rel error    xerror        xstd
## 1 0.03433136      0 1.0000000 1.0000565 0.001159178
## 2 0.03397122      1 0.9656686 0.9596011 0.002306328
## 3 0.01522393      2 0.9316974 0.9327278 0.002656245
## 4 0.01486580      3 0.9164735 0.9189171 0.002906249
## 5 0.01000000      4 0.9016077 0.9027850 0.003075436
## 
## Variable importance
##      reward_length               goal           category 
##                 42                 25                 16 
## description_length       video_status  campaign_duration 
##                 10                  3                  3 
## 
## Node number 1: 39480 observations,    complexity param=0.03433136
##   mean=0.5571935, MSE=0.2467289 
##   left son=2 (19858 obs) right son=3 (19622 obs)
##   Primary splits:
##       goal               < 4320.84  to the right, improve=0.03433136, (0 missing)
##       category           splits as  LRRRRRRRLRRRLLR, improve=0.03196349, (0 missing)
##       reward_length      < 4056.5   to the left,  improve=0.02676679, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.02034017, (0 missing)
##       description_length < 1119.5   to the left,  improve=0.01583421, (0 missing)
##   Surrogate splits:
##       reward_length      < 7034.5   to the right, agree=0.639, adj=0.273, (0 split)
##       description_length < 2632.5   to the right, agree=0.628, adj=0.251, (0 split)
##       category           splits as  RLRRLLLLLLRLRLR, agree=0.596, adj=0.187, (0 split)
##       campaign_duration  < 29.995   to the right, agree=0.569, adj=0.133, (0 split)
##       video_status       < 0.5      to the right, agree=0.560, adj=0.115, (0 split)
## 
## Node number 2: 19858 observations,    complexity param=0.03397122
##   mean=0.4657065, MSE=0.248824 
##   left son=4 (4221 obs) right son=5 (15637 obs)
##   Primary splits:
##       reward_length      < 4814.5   to the left,  improve=0.06697005, (0 missing)
##       description_length < 1925.5   to the left,  improve=0.04453456, (0 missing)
##       category           splits as  LRRRRRRRLRRRLLR, improve=0.04166823, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.03845977, (0 missing)
##       goal               < 18664.1  to the right, improve=0.02109630, (0 missing)
##   Surrogate splits:
##       description_length < 894.5    to the left,  agree=0.803, adj=0.073, (0 split)
##       video_status       < 0.5      to the left,  agree=0.788, adj=0.004, (0 split)
##       goal               < 2500000  to the right, agree=0.788, adj=0.001, (0 split)
##       campaign_duration  < 7.49     to the left,  agree=0.788, adj=0.001, (0 split)
## 
## Node number 3: 19622 observations,    complexity param=0.0148658
##   mean=0.6497809, MSE=0.2275657 
##   left son=6 (6380 obs) right son=7 (13242 obs)
##   Primary splits:
##       reward_length      < 4056.5   to the left,  improve=0.03242913, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.02657808, (0 missing)
##       category           splits as  LRRRRRRRLRLRLLR, improve=0.02453957, (0 missing)
##       description_length < 1066.5   to the left,  improve=0.01988858, (0 missing)
##       campaign_duration  < 29.785   to the right, improve=0.01356609, (0 missing)
##   Surrogate splits:
##       description_length < 787.5    to the left,  agree=0.697, adj=0.068, (0 split)
##       video_status       < 0.5      to the left,  agree=0.684, adj=0.029, (0 split)
##       goal               < 331.5    to the left,  agree=0.679, adj=0.011, (0 split)
##       campaign_duration  < 7.745    to the left,  agree=0.675, adj=0.002, (0 split)
## 
## Node number 4: 4221 observations
##   mean=0.2172471, MSE=0.1700508 
## 
## Node number 5: 15637 observations,    complexity param=0.01522393
##   mean=0.5327748, MSE=0.2489258 
##   left son=10 (6497 obs) right son=11 (9140 obs)
##   Primary splits:
##       category           splits as  LRRRRRRRLRRRLLR, improve=0.03809787, (0 missing)
##       goal               < 15525    to the right, improve=0.03077773, (0 missing)
##       reward_length      < 9565     to the left,  improve=0.01700483, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.01567898, (0 missing)
##       description_length < 1981.5   to the left,  improve=0.01366007, (0 missing)
##   Surrogate splits:
##       description_length < 5760     to the right, agree=0.637, adj=0.126, (0 split)
##       usa                < 0.5      to the left,  agree=0.592, adj=0.017, (0 split)
##       goal               < 110555.5 to the right, agree=0.591, adj=0.015, (0 split)
##       video_status       < 0.5      to the left,  agree=0.590, adj=0.013, (0 split)
## 
## Node number 6: 6380 observations
##   mean=0.5260188, MSE=0.249323 
## 
## Node number 7: 13242 observations
##   mean=0.7094095, MSE=0.2061477 
## 
## Node number 10: 6497 observations
##   mean=0.4172695, MSE=0.2431557 
## 
## Node number 11: 9140 observations
##   mean=0.6148796, MSE=0.2368027

Accuracty of Simple Tree in Test Set

## [1] 0.6521783

4.2.2 Complex tree

For a more detailed tree, we reduced the complexity parameter to 0.01%. In so doing, we encourage the tree to make many more splits that show even slight predictive power. It is important to note, that if we were to lower the complexity parameter enough, the tree would find a way to perfectly predict each in sample observation; however, that would be a classic case of overfitting the model.

## Call:
## rpart(formula = funded ~ campaign_duration + usa + social_media_count + 
##     photo_key + video_status + mo_launched + category + goal + 
##     description_length + reward_length, data = train, cp = 1e-04)
##   n= 39480 
## 
##               CP nsplit rel error    xerror        xstd
## 1   0.0343313576      0 1.0000000 1.0000565 0.001159178
## 2   0.0339712229      1 0.9656686 0.9596011 0.002306328
## 3   0.0152239347      2 0.9316974 0.9327278 0.002656245
## 4   0.0148657964      3 0.9164735 0.9189171 0.002906249
## 5   0.0093983118      4 0.9016077 0.9027850 0.003075436
## 6   0.0083805846      5 0.8922094 0.8934198 0.003206112
## 7   0.0068075228      6 0.8838288 0.8852145 0.003322227
## 8   0.0061389289      7 0.8770213 0.8795717 0.003409039
## 9   0.0059014051      8 0.8708823 0.8752421 0.003452323
## 10  0.0052772263      9 0.8649809 0.8707225 0.003465159
## 11  0.0049443087     10 0.8597037 0.8655077 0.003476603
## 12  0.0039385969     11 0.8547594 0.8590194 0.003532358
## 13  0.0032512683     12 0.8508208 0.8546529 0.003526011
## 14  0.0032117281     13 0.8475695 0.8533885 0.003558672
## 15  0.0031290991     14 0.8443578 0.8521005 0.003574501
## 16  0.0028509148     15 0.8412287 0.8486904 0.003599744
## 17  0.0026393102     16 0.8383778 0.8478449 0.003612896
## 18  0.0025170229     17 0.8357385 0.8454603 0.003635381
## 19  0.0023895554     18 0.8332215 0.8438232 0.003637321
## 20  0.0023629542     19 0.8308319 0.8426446 0.003659933
## 21  0.0019790988     21 0.8261060 0.8374947 0.003702863
## 22  0.0018883025     22 0.8241269 0.8349321 0.003732993
## 23  0.0018071820     23 0.8222386 0.8347462 0.003742972
## 24  0.0015784529     24 0.8204314 0.8327978 0.003756195
## 25  0.0015101503     25 0.8188530 0.8304542 0.003751898
## 26  0.0012700084     26 0.8173428 0.8288416 0.003756238
## 27  0.0011922091     27 0.8160728 0.8282949 0.003777017
## 28  0.0011873007     28 0.8148806 0.8276399 0.003782742
## 29  0.0011299109     29 0.8136933 0.8272612 0.003794765
## 30  0.0011118763     30 0.8125634 0.8264007 0.003801869
## 31  0.0010748986     31 0.8114515 0.8260485 0.003806073
## 32  0.0010256642     32 0.8103766 0.8248701 0.003808448
## 33  0.0010052042     33 0.8093509 0.8238773 0.003813440
## 34  0.0009413476     34 0.8083457 0.8223628 0.003822182
## 35  0.0009317064     35 0.8074044 0.8220702 0.003820525
## 36  0.0009231166     36 0.8064727 0.8219611 0.003825386
## 37  0.0009089677     37 0.8055496 0.8217760 0.003826495
## 38  0.0008656508     38 0.8046406 0.8208622 0.003835672
## 39  0.0008372580     39 0.8037749 0.8193651 0.003838462
## 40  0.0008142635     40 0.8029377 0.8194384 0.003844083
## 41  0.0007706202     41 0.8021234 0.8188581 0.003845924
## 42  0.0007338727     42 0.8013528 0.8179023 0.003856714
## 43  0.0007257683     43 0.8006189 0.8174403 0.003859006
## 44  0.0007192397     44 0.7998932 0.8170973 0.003856469
## 45  0.0007084594     45 0.7991739 0.8170973 0.003856469
## 46  0.0006644816     46 0.7984655 0.8166152 0.003859770
## 47  0.0006627986     47 0.7978010 0.8157615 0.003863890
## 48  0.0006573327     49 0.7964754 0.8156250 0.003862594
## 49  0.0006292943     50 0.7958181 0.8152243 0.003869742
## 50  0.0006251650     51 0.7951888 0.8147968 0.003870238
## 51  0.0006251146     52 0.7945636 0.8147945 0.003871098
## 52  0.0005989149     53 0.7939385 0.8145881 0.003878598
## 53  0.0005850710     54 0.7933396 0.8140612 0.003883639
## 54  0.0005498284     55 0.7927545 0.8134569 0.003897321
## 55  0.0005429990     56 0.7922047 0.8129905 0.003905689
## 56  0.0005422279     57 0.7916617 0.8130295 0.003909008
## 57  0.0005351300     58 0.7911194 0.8129985 0.003909953
## 58  0.0005292483     59 0.7905843 0.8126708 0.003912674
## 59  0.0004970731     60 0.7900551 0.8122365 0.003922144
## 60  0.0004963815     61 0.7895580 0.8116282 0.003932380
## 61  0.0004934071     62 0.7890616 0.8116084 0.003935741
## 62  0.0004856656     63 0.7885682 0.8113167 0.003939724
## 63  0.0004851831     64 0.7880825 0.8113789 0.003939984
## 64  0.0004805768     65 0.7875974 0.8113688 0.003940836
## 65  0.0004761727     67 0.7866362 0.8111280 0.003942096
## 66  0.0004698140     68 0.7861600 0.8112575 0.003949070
## 67  0.0004678901     69 0.7856902 0.8109997 0.003949075
## 68  0.0004676145     70 0.7852223 0.8109697 0.003950067
## 69  0.0004474458     71 0.7847547 0.8105466 0.003954496
## 70  0.0004470318     74 0.7834124 0.8106569 0.003966104
## 71  0.0004430328     75 0.7829653 0.8106127 0.003966676
## 72  0.0004261947     76 0.7825223 0.8099106 0.003973620
## 73  0.0004239030     77 0.7820961 0.8098325 0.003982675
## 74  0.0004203066     78 0.7816722 0.8099139 0.003983317
## 75  0.0004192853     79 0.7812519 0.8098779 0.003984275
## 76  0.0004133988     80 0.7808326 0.8097988 0.003986235
## 77  0.0004091120     81 0.7804192 0.8095149 0.003988516
## 78  0.0003955493     82 0.7800101 0.8097241 0.003999239
## 79  0.0003923393     83 0.7796146 0.8098339 0.004014151
## 80  0.0003840646     84 0.7792222 0.8099198 0.004019587
## 81  0.0003827771     85 0.7788382 0.8099571 0.004023918
## 82  0.0003799772     86 0.7784554 0.8101473 0.004025270
## 83  0.0003762529     87 0.7780754 0.8103912 0.004028361
## 84  0.0003724196     88 0.7776991 0.8101065 0.004028346
## 85  0.0003723448     90 0.7769543 0.8100089 0.004029765
## 86  0.0003699419     91 0.7765820 0.8101121 0.004032205
## 87  0.0003683740     92 0.7762120 0.8098004 0.004036757
## 88  0.0003666117     94 0.7754753 0.8097905 0.004038484
## 89  0.0003521671     95 0.7751087 0.8101783 0.004044341
## 90  0.0003417093     96 0.7747565 0.8109227 0.004061042
## 91  0.0003354286     97 0.7744148 0.8112291 0.004079703
## 92  0.0003314053     98 0.7740794 0.8114623 0.004083680
## 93  0.0003309583     99 0.7737479 0.8114819 0.004089525
## 94  0.0003246805    102 0.7727551 0.8123678 0.004099163
## 95  0.0003232258    104 0.7721057 0.8128783 0.004106142
## 96  0.0003228011    105 0.7717825 0.8129827 0.004108014
## 97  0.0003191593    108 0.7708141 0.8137980 0.004117066
## 98  0.0003163914    109 0.7704949 0.8136474 0.004119673
## 99  0.0003160340    110 0.7701785 0.8135885 0.004120130
## 100 0.0003145891    111 0.7698625 0.8136522 0.004121983
## 101 0.0003110854    112 0.7695479 0.8137716 0.004129046
## 102 0.0003087869    113 0.7692368 0.8135010 0.004137361
## 103 0.0003073940    115 0.7686192 0.8134853 0.004140470
## 104 0.0003068110    117 0.7680045 0.8134508 0.004140613
## 105 0.0003041430    118 0.7676977 0.8133425 0.004142828
## 106 0.0003023313    119 0.7673935 0.8136117 0.004147812
## 107 0.0003003767    120 0.7670912 0.8130852 0.004148482
## 108 0.0002922717    121 0.7667908 0.8142980 0.004164047
## 109 0.0002904717    122 0.7664985 0.8146940 0.004172112
## 110 0.0002903067    124 0.7659176 0.8146537 0.004172482
## 111 0.0002851963    126 0.7653370 0.8156944 0.004183753
## 112 0.0002832746    128 0.7647666 0.8164845 0.004195241
## 113 0.0002802887    129 0.7644833 0.8169995 0.004206315
## 114 0.0002802057    130 0.7642030 0.8173810 0.004212493
## 115 0.0002778713    133 0.7633624 0.8176752 0.004217215
## 116 0.0002768289    136 0.7625288 0.8180145 0.004221351
## 117 0.0002725443    137 0.7622520 0.8183102 0.004228356
## 118 0.0002684924    138 0.7619794 0.8185271 0.004238263
## 119 0.0002682542    140 0.7614424 0.8186326 0.004244812
## 120 0.0002660963    141 0.7611742 0.8188336 0.004249012
## 121 0.0002656689    142 0.7609081 0.8191699 0.004252621
## 122 0.0002656012    144 0.7603767 0.8192950 0.004252939
## 123 0.0002640441    145 0.7601111 0.8191914 0.004256494
## 124 0.0002635163    146 0.7598471 0.8190659 0.004257795
## 125 0.0002623540    147 0.7595836 0.8189552 0.004258567
## 126 0.0002622676    148 0.7593212 0.8188450 0.004257739
## 127 0.0002592326    149 0.7590590 0.8189969 0.004261221
## 128 0.0002576522    150 0.7587997 0.8192336 0.004269864
## 129 0.0002573489    151 0.7585421 0.8194761 0.004275518
## 130 0.0002572943    152 0.7582847 0.8195960 0.004278101
## 131 0.0002542986    154 0.7577701 0.8197653 0.004282332
## 132 0.0002525711    157 0.7570072 0.8203956 0.004289542
## 133 0.0002508913    158 0.7567547 0.8208422 0.004294518
## 134 0.0002504948    159 0.7565038 0.8211883 0.004302486
## 135 0.0002503922    161 0.7560028 0.8212886 0.004303491
## 136 0.0002501669    163 0.7555020 0.8212998 0.004303643
## 137 0.0002486600    164 0.7552518 0.8214917 0.004307520
## 138 0.0002460456    165 0.7550032 0.8220621 0.004316521
## 139 0.0002441824    166 0.7547571 0.8225822 0.004327204
## 140 0.0002426646    168 0.7542688 0.8233232 0.004338521
## 141 0.0002411280    170 0.7537834 0.8235817 0.004344375
## 142 0.0002390247    171 0.7535423 0.8236445 0.004350160
## 143 0.0002390147    172 0.7533033 0.8238868 0.004353696
## 144 0.0002384490    175 0.7525815 0.8239917 0.004354970
## 145 0.0002369654    176 0.7523430 0.8240013 0.004358274
## 146 0.0002366631    177 0.7521061 0.8244867 0.004366074
## 147 0.0002356413    179 0.7516328 0.8245661 0.004367823
## 148 0.0002355625    180 0.7513971 0.8245673 0.004369263
## 149 0.0002348238    182 0.7509260 0.8247901 0.004372499
## 150 0.0002342799    183 0.7506912 0.8252569 0.004378457
## 151 0.0002331282    185 0.7502226 0.8255119 0.004384729
## 152 0.0002304778    186 0.7499895 0.8261056 0.004396566
## 153 0.0002303799    188 0.7495285 0.8265420 0.004408379
## 154 0.0002300961    191 0.7488374 0.8265164 0.004408455
## 155 0.0002299780    192 0.7486073 0.8266255 0.004410295
## 156 0.0002294033    193 0.7483773 0.8267012 0.004411904
## 157 0.0002290528    194 0.7481479 0.8266801 0.004414436
## 158 0.0002289818    195 0.7479188 0.8267549 0.004416113
## 159 0.0002264953    196 0.7476899 0.8267900 0.004420906
## 160 0.0002252796    198 0.7472369 0.8274316 0.004430164
## 161 0.0002251488    201 0.7465443 0.8277227 0.004434919
## 162 0.0002247599    203 0.7460940 0.8277641 0.004435198
## 163 0.0002238936    205 0.7456445 0.8278054 0.004440416
## 164 0.0002238739    207 0.7451967 0.8281285 0.004443942
## 165 0.0002237785    210 0.7445251 0.8282213 0.004444941
## 166 0.0002230332    211 0.7443013 0.8284666 0.004447908
## 167 0.0002226012    213 0.7438552 0.8283817 0.004450775
## 168 0.0002225164    214 0.7436326 0.8284926 0.004451852
## 169 0.0002224472    215 0.7434101 0.8284926 0.004451852
## 170 0.0002205681    217 0.7429652 0.8291965 0.004459850
## 171 0.0002197869    220 0.7423035 0.8294165 0.004466678
## 172 0.0002192833    221 0.7420837 0.8300095 0.004474191
## 173 0.0002175095    223 0.7416452 0.8307194 0.004482261
## 174 0.0002168598    224 0.7414277 0.8311546 0.004489625
## 175 0.0002167011    225 0.7412108 0.8312669 0.004491385
## 176 0.0002151251    226 0.7409941 0.8316195 0.004498440
## 177 0.0002149945    227 0.7407790 0.8315811 0.004501619
## 178 0.0002145022    228 0.7405640 0.8316415 0.004501927
## 179 0.0002110302    229 0.7403495 0.8326140 0.004516410
## 180 0.0002110181    231 0.7399274 0.8331106 0.004532329
## 181 0.0002107754    234 0.7392944 0.8332486 0.004534336
## 182 0.0002107539    235 0.7390836 0.8331909 0.004534564
## 183 0.0002089609    236 0.7388728 0.8335485 0.004539286
## 184 0.0002083715    237 0.7386639 0.8336619 0.004544574
## 185 0.0002080595    238 0.7384555 0.8340697 0.004550691
## 186 0.0002065429    241 0.7378313 0.8349650 0.004564944
## 187 0.0002064971    242 0.7376248 0.8352281 0.004573868
## 188 0.0002063601    244 0.7372118 0.8352333 0.004575092
## 189 0.0002063242    247 0.7365927 0.8352260 0.004575129
## 190 0.0002061482    248 0.7363864 0.8352260 0.004575129
## 191 0.0002057874    250 0.7359741 0.8353542 0.004576313
## 192 0.0002056639    251 0.7357683 0.8353391 0.004576137
## 193 0.0002056406    254 0.7351513 0.8354168 0.004577632
## 194 0.0002051527    256 0.7347400 0.8353281 0.004577938
## 195 0.0002041249    258 0.7343297 0.8358913 0.004589406
## 196 0.0002038132    261 0.7337173 0.8358857 0.004592231
## 197 0.0002032936    264 0.7331059 0.8359412 0.004594227
## 198 0.0002021294    265 0.7329026 0.8363933 0.004604259
## 199 0.0002015004    267 0.7324983 0.8367121 0.004608767
## 200 0.0002013969    268 0.7322968 0.8371723 0.004613208
## 201 0.0002008804    269 0.7320954 0.8371718 0.004614227
## 202 0.0002006303    272 0.7314928 0.8371150 0.004616701
## 203 0.0002005101    274 0.7310915 0.8371572 0.004618216
## 204 0.0002004815    277 0.7304900 0.8371314 0.004618639
## 205 0.0002004240    279 0.7300891 0.8372224 0.004619600
## 206 0.0002004007    281 0.7296882 0.8372224 0.004619600
## 207 0.0002003945    282 0.7294878 0.8372366 0.004620050
## 208 0.0002000630    283 0.7292874 0.8372366 0.004620050
## 209 0.0001998927    286 0.7286872 0.8375258 0.004622228
## 210 0.0001997792    287 0.7284873 0.8375545 0.004622590
## 211 0.0001992626    288 0.7282875 0.8381039 0.004628763
## 212 0.0001987616    290 0.7278890 0.8384746 0.004632146
## 213 0.0001985989    291 0.7276903 0.8389913 0.004635949
## 214 0.0001982897    292 0.7274917 0.8390363 0.004636189
## 215 0.0001981542    299 0.7260660 0.8389636 0.004637136
## 216 0.0001976813    304 0.7250752 0.8390554 0.004639430
## 217 0.0001973780    306 0.7246799 0.8390337 0.004641348
## 218 0.0001964052    308 0.7242851 0.8393204 0.004644169
## 219 0.0001963733    309 0.7240887 0.8396984 0.004648079
## 220 0.0001954115    310 0.7238923 0.8401047 0.004652326
## 221 0.0001945707    311 0.7236969 0.8410517 0.004660373
## 222 0.0001939548    312 0.7235023 0.8411775 0.004667079
## 223 0.0001939548    313 0.7233084 0.8415198 0.004669150
## 224 0.0001936838    314 0.7231144 0.8416202 0.004670367
## 225 0.0001936838    315 0.7229208 0.8418998 0.004673230
## 226 0.0001928421    316 0.7227271 0.8420208 0.004675961
## 227 0.0001925583    318 0.7223414 0.8423328 0.004681210
## 228 0.0001925406    319 0.7221488 0.8423977 0.004681218
## 229 0.0001916147    320 0.7219563 0.8426146 0.004687751
## 230 0.0001911379    321 0.7217647 0.8431627 0.004693476
## 231 0.0001907433    322 0.7215735 0.8433611 0.004695806
## 232 0.0001901052    323 0.7213828 0.8441520 0.004703105
## 233 0.0001890358    325 0.7210026 0.8445727 0.004710170
## 234 0.0001881440    327 0.7206245 0.8451284 0.004719613
## 235 0.0001875995    331 0.7198719 0.8463834 0.004736155
## 236 0.0001872635    334 0.7193091 0.8465069 0.004739416
## 237 0.0001870331    335 0.7191219 0.8470396 0.004746958
## 238 0.0001870222    336 0.7189348 0.8469647 0.004747393
## 239 0.0001866282    337 0.7187478 0.8469543 0.004748309
## 240 0.0001863424    341 0.7179610 0.8472592 0.004751320
## 241 0.0001862853    345 0.7172157 0.8475559 0.004754495
## 242 0.0001847887    347 0.7168431 0.8473972 0.004756840
## 243 0.0001842810    348 0.7166583 0.8485131 0.004765775
## 244 0.0001840924    349 0.7164740 0.8489634 0.004771471
## 245 0.0001828086    351 0.7161058 0.8496809 0.004780548
## 246 0.0001824518    352 0.7159230 0.8503945 0.004788265
## 247 0.0001820471    354 0.7155581 0.8509021 0.004796261
## 248 0.0001819475    357 0.7150120 0.8509233 0.004796984
## 249 0.0001818246    361 0.7142842 0.8510511 0.004798502
## 250 0.0001811101    363 0.7139205 0.8516587 0.004804016
## 251 0.0001810150    364 0.7137394 0.8520246 0.004809512
## 252 0.0001807037    365 0.7135584 0.8524659 0.004812847
## 253 0.0001805770    366 0.7133777 0.8525375 0.004813578
## 254 0.0001804917    367 0.7131971 0.8525765 0.004813856
## 255 0.0001793883    368 0.7130166 0.8533971 0.004821085
## 256 0.0001792156    369 0.7128373 0.8545027 0.004832430
## 257 0.0001788184    370 0.7126580 0.8547266 0.004837101
## 258 0.0001784131    372 0.7123004 0.8547203 0.004839891
## 259 0.0001783566    374 0.7119436 0.8548083 0.004841880
## 260 0.0001779633    375 0.7117652 0.8548552 0.004843108
## 261 0.0001778217    378 0.7112313 0.8551856 0.004845894
## 262 0.0001777669    379 0.7110535 0.8555991 0.004850924
## 263 0.0001771349    380 0.7108757 0.8557800 0.004854880
## 264 0.0001769594    381 0.7106986 0.8562091 0.004860083
## 265 0.0001768515    382 0.7105216 0.8562940 0.004861431
## 266 0.0001765153    383 0.7103448 0.8565365 0.004865213
## 267 0.0001764781    386 0.7098152 0.8568532 0.004869668
## 268 0.0001763981    387 0.7096388 0.8568528 0.004869665
## 269 0.0001762652    388 0.7094624 0.8569010 0.004870347
## 270 0.0001753324    389 0.7092861 0.8576563 0.004876891
## 271 0.0001747904    390 0.7091108 0.8580008 0.004882314
## 272 0.0001743257    392 0.7087612 0.8586728 0.004891562
## 273 0.0001739049    396 0.7080639 0.8587721 0.004894578
## 274 0.0001737559    397 0.7078900 0.8590535 0.004901575
## 275 0.0001730017    403 0.7068474 0.8594001 0.004908839
## 276 0.0001719448    404 0.7066744 0.8597849 0.004915424
## 277 0.0001716530    406 0.7063306 0.8610978 0.004927379
## 278 0.0001715895    408 0.7059873 0.8609935 0.004928036
## 279 0.0001714304    410 0.7056441 0.8609822 0.004928663
## 280 0.0001713982    411 0.7054726 0.8609353 0.004929463
## 281 0.0001712213    413 0.7051298 0.8610395 0.004930114
## 282 0.0001712013    414 0.7049586 0.8611139 0.004931069
## 283 0.0001709784    415 0.7047874 0.8612157 0.004933017
## 284 0.0001708521    417 0.7044455 0.8613522 0.004934889
## 285 0.0001707960    418 0.7042746 0.8614094 0.004937078
## 286 0.0001701715    420 0.7039330 0.8615730 0.004943310
## 287 0.0001698356    421 0.7037628 0.8621673 0.004952921
## 288 0.0001696791    422 0.7035930 0.8624436 0.004954981
## 289 0.0001696411    424 0.7032537 0.8626880 0.004958037
## 290 0.0001696005    425 0.7030840 0.8626880 0.004958037
## 291 0.0001693191    431 0.7020663 0.8628365 0.004960187
## 292 0.0001688844    432 0.7018969 0.8630226 0.004965309
## 293 0.0001686440    433 0.7017281 0.8634048 0.004967926
## 294 0.0001686254    434 0.7015594 0.8635560 0.004970964
## 295 0.0001684683    439 0.7007163 0.8635739 0.004971055
## 296 0.0001684563    440 0.7005478 0.8644250 0.004979235
## 297 0.0001683588    441 0.7003794 0.8643175 0.004979399
## 298 0.0001680759    442 0.7002110 0.8647175 0.004983096
## 299 0.0001671798    446 0.6995235 0.8650459 0.004987039
## 300 0.0001666639    447 0.6993563 0.8655943 0.004994961
## 301 0.0001666334    448 0.6991896 0.8658302 0.004998447
## 302 0.0001665416    449 0.6990230 0.8659143 0.004999813
## 303 0.0001659847    454 0.6981903 0.8659534 0.005001974
## 304 0.0001657462    455 0.6980243 0.8656711 0.005005964
## 305 0.0001648558    457 0.6976928 0.8666092 0.005015309
## 306 0.0001646986    461 0.6970086 0.8674211 0.005023940
## 307 0.0001643979    463 0.6966792 0.8675536 0.005025818
## 308 0.0001643205    465 0.6963504 0.8678570 0.005028412
## 309 0.0001637130    466 0.6961861 0.8684241 0.005033797
## 310 0.0001635881    471 0.6953395 0.8686627 0.005037902
## 311 0.0001633467    472 0.6951759 0.8687434 0.005038904
## 312 0.0001631992    474 0.6948492 0.8689678 0.005040833
## 313 0.0001631107    475 0.6946860 0.8689293 0.005041691
## 314 0.0001628898    477 0.6943598 0.8689148 0.005043161
## 315 0.0001628544    480 0.6938438 0.8688464 0.005043416
## 316 0.0001627790    483 0.6933553 0.8688411 0.005043476
## 317 0.0001625835    484 0.6931925 0.8691695 0.005046602
## 318 0.0001621671    485 0.6930299 0.8692663 0.005047980
## 319 0.0001618301    486 0.6928677 0.8699725 0.005052524
## 320 0.0001617725    487 0.6927059 0.8702541 0.005055499
## 321 0.0001612437    489 0.6923824 0.8702420 0.005055972
## 322 0.0001610350    490 0.6922211 0.8705195 0.005061945
## 323 0.0001607863    491 0.6920601 0.8710453 0.005066567
## 324 0.0001607786    492 0.6918993 0.8713759 0.005069304
## 325 0.0001602301    498 0.6909346 0.8716858 0.005072210
## 326 0.0001599407    501 0.6904539 0.8716800 0.005074125
## 327 0.0001595895    502 0.6902940 0.8727108 0.005082912
## 328 0.0001591987    504 0.6899748 0.8734036 0.005088080
## 329 0.0001589134    515 0.6881971 0.8736973 0.005093379
## 330 0.0001587067    517 0.6878793 0.8740548 0.005096725
## 331 0.0001586094    519 0.6875619 0.8739768 0.005098110
## 332 0.0001585511    520 0.6874033 0.8739374 0.005098794
## 333 0.0001577726    521 0.6872447 0.8740380 0.005101860
## 334 0.0001577645    522 0.6870870 0.8743691 0.005108288
## 335 0.0001564145    524 0.6867714 0.8759685 0.005123796
## 336 0.0001563010    526 0.6864586 0.8775935 0.005137249
## 337 0.0001555327    529 0.6859897 0.8774862 0.005140314
## 338 0.0001545966    530 0.6858342 0.8783020 0.005152467
## 339 0.0001534611    532 0.6855250 0.8793436 0.005162607
## 340 0.0001534246    533 0.6853715 0.8802708 0.005172418
## 341 0.0001533167    535 0.6850647 0.8803060 0.005172429
## 342 0.0001533001    536 0.6849113 0.8807769 0.005175568
## 343 0.0001528161    539 0.6844514 0.8807403 0.005176779
## 344 0.0001527192    540 0.6842986 0.8813067 0.005185436
## 345 0.0001521461    541 0.6841459 0.8819658 0.005192589
## 346 0.0001518884    543 0.6838416 0.8821480 0.005194284
## 347 0.0001511907    546 0.6833859 0.8826222 0.005199847
## 348 0.0001511064    547 0.6832348 0.8832283 0.005208620
## 349 0.0001505750    548 0.6830836 0.8837833 0.005215904
## 350 0.0001498951    549 0.6829331 0.8844284 0.005222421
## 351 0.0001497767    551 0.6826333 0.8852522 0.005231891
## 352 0.0001496983    552 0.6824835 0.8855933 0.005234458
## 353 0.0001495628    558 0.6815277 0.8856976 0.005235826
## 354 0.0001494703    562 0.6809054 0.8859031 0.005238112
## 355 0.0001490477    566 0.6803075 0.8859561 0.005241863
## 356 0.0001490190    567 0.6801585 0.8862184 0.005245277
## 357 0.0001489766    570 0.6797114 0.8861941 0.005245388
## 358 0.0001488798    572 0.6794134 0.8863360 0.005246626
## 359 0.0001487692    574 0.6791157 0.8864001 0.005246685
## 360 0.0001486531    577 0.6786694 0.8865102 0.005248103
## 361 0.0001482642    581 0.6780748 0.8872580 0.005253524
## 362 0.0001481675    583 0.6777782 0.8874255 0.005256050
## 363 0.0001480224    588 0.6770374 0.8874559 0.005256556
## 364 0.0001480187    592 0.6764328 0.8875066 0.005257287
## 365 0.0001480169    593 0.6762847 0.8875066 0.005257287
## 366 0.0001478085    601 0.6749670 0.8877156 0.005260471
## 367 0.0001473601    603 0.6746714 0.8886815 0.005269271
## 368 0.0001472365    604 0.6745240 0.8887531 0.005271869
## 369 0.0001472286    607 0.6740823 0.8887349 0.005272238
## 370 0.0001469910    613 0.6731989 0.8889940 0.005276194
## 371 0.0001467188    614 0.6730519 0.8893619 0.005283080
## 372 0.0001460177    615 0.6729052 0.8904697 0.005296375
## 373 0.0001459807    616 0.6727592 0.8909691 0.005301768
## 374 0.0001458735    617 0.6726132 0.8911623 0.005303317
## 375 0.0001456154    619 0.6723215 0.8915877 0.005307680
## 376 0.0001454195    620 0.6721759 0.8918880 0.005309543
## 377 0.0001451602    623 0.6717396 0.8922226 0.005312968
## 378 0.0001451126    627 0.6711590 0.8923143 0.005313886
## 379 0.0001450690    629 0.6708687 0.8923336 0.005314013
## 380 0.0001448183    631 0.6705786 0.8928265 0.005318138
## 381 0.0001447902    633 0.6702890 0.8927883 0.005319503
## 382 0.0001440448    634 0.6701442 0.8928889 0.005320748
## 383 0.0001439484    635 0.6700001 0.8931509 0.005326590
## 384 0.0001438023    637 0.6697122 0.8932812 0.005329549
## 385 0.0001436945    638 0.6695684 0.8935987 0.005332882
## 386 0.0001436035    641 0.6691373 0.8938195 0.005334752
## 387 0.0001427238    643 0.6688501 0.8945870 0.005341786
## 388 0.0001426404    650 0.6678448 0.8950066 0.005348534
## 389 0.0001425272    651 0.6677022 0.8950649 0.005351247
## 390 0.0001419097    652 0.6675597 0.8959666 0.005359238
## 391 0.0001413784    653 0.6674178 0.8965758 0.005368986
## 392 0.0001413436    655 0.6671350 0.8975280 0.005376566
## 393 0.0001411348    656 0.6669937 0.8980453 0.005380517
## 394 0.0001407554    657 0.6668525 0.8983236 0.005384589
## 395 0.0001406001    658 0.6667118 0.8988021 0.005389049
## 396 0.0001405862    659 0.6665712 0.8988548 0.005389652
## 397 0.0001405671    663 0.6660088 0.8988548 0.005389652
## 398 0.0001401988    668 0.6652987 0.8989987 0.005393476
## 399 0.0001396785    669 0.6651585 0.8995767 0.005397296
## 400 0.0001390319    670 0.6650188 0.9004279 0.005405131
## 401 0.0001389883    672 0.6647408 0.9006145 0.005407613
## 402 0.0001386740    674 0.6644628 0.9008327 0.005411225
## 403 0.0001385456    676 0.6641855 0.9009150 0.005416747
## 404 0.0001383208    677 0.6640469 0.9009285 0.005417719
## 405 0.0001380458    678 0.6639086 0.9010205 0.005419536
## 406 0.0001377486    680 0.6636325 0.9012671 0.005424828
## 407 0.0001375129    683 0.6632192 0.9017630 0.005427577
## 408 0.0001374502    686 0.6627800 0.9019921 0.005430005
## 409 0.0001373720    688 0.6625051 0.9022501 0.005432054
## 410 0.0001373511    689 0.6623677 0.9023405 0.005432624
## 411 0.0001370999    692 0.6619556 0.9023869 0.005433445
## 412 0.0001369433    693 0.6618185 0.9027097 0.005435886
## 413 0.0001369138    702 0.6605610 0.9029209 0.005438094
## 414 0.0001368939    703 0.6604241 0.9029209 0.005438094
## 415 0.0001365279    704 0.6602872 0.9030515 0.005440565
## 416 0.0001364298    706 0.6600141 0.9030688 0.005442119
## 417 0.0001363999    710 0.6594684 0.9030896 0.005442323
## 418 0.0001362570    713 0.6590592 0.9031706 0.005444195
## 419 0.0001362407    714 0.6589229 0.9030755 0.005443718
## 420 0.0001356484    716 0.6586505 0.9034374 0.005446380
## 421 0.0001354076    718 0.6583792 0.9040036 0.005452029
## 422 0.0001352994    719 0.6582438 0.9042247 0.005456593
## 423 0.0001352428    721 0.6579732 0.9044263 0.005457865
## 424 0.0001348783    726 0.6572347 0.9042833 0.005460225
## 425 0.0001348584    732 0.6564137 0.9044436 0.005461699
## 426 0.0001347957    733 0.6562788 0.9046710 0.005463480
## 427 0.0001346740    742 0.6549185 0.9047877 0.005463937
## 428 0.0001344362    743 0.6547838 0.9048499 0.005466893
## 429 0.0001344362    744 0.6546493 0.9051916 0.005469273
## 430 0.0001341429    745 0.6545149 0.9054916 0.005471012
## 431 0.0001341032    746 0.6543808 0.9055035 0.005472490
## 432 0.0001339936    747 0.6542467 0.9055897 0.005473331
## 433 0.0001339914    748 0.6541127 0.9056758 0.005474503
## 434 0.0001339236    750 0.6538447 0.9057951 0.005475731
## 435 0.0001336597    751 0.6537108 0.9059777 0.005478361
## 436 0.0001334936    765 0.6517556 0.9060698 0.005480709
## 437 0.0001332611    766 0.6516221 0.9061993 0.005483292
## 438 0.0001332611    767 0.6514888 0.9067643 0.005486568
## 439 0.0001331893    768 0.6513555 0.9068970 0.005487649
## 440 0.0001331127    769 0.6512224 0.9069104 0.005488206
## 441 0.0001331054    772 0.6508230 0.9068857 0.005488218
## 442 0.0001330918    775 0.6504237 0.9068857 0.005488218
## 443 0.0001325438    776 0.6502906 0.9077178 0.005495043
## 444 0.0001323152    777 0.6501581 0.9078602 0.005498677
## 445 0.0001317974    781 0.6496288 0.9083801 0.005504655
## 446 0.0001316969    782 0.6494970 0.9088758 0.005509788
## 447 0.0001316634    783 0.6493653 0.9088986 0.005509802
## 448 0.0001316118    785 0.6491020 0.9089651 0.005510143
## 449 0.0001315896    786 0.6489704 0.9089651 0.005510143
## 450 0.0001315161    787 0.6488388 0.9090511 0.005511356
## 451 0.0001314054    789 0.6485757 0.9090501 0.005512558
## 452 0.0001313720    790 0.6484443 0.9091018 0.005513909
## 453 0.0001309726    793 0.6480502 0.9088480 0.005514454
## 454 0.0001308142    800 0.6470960 0.9093551 0.005518294
## 455 0.0001308142    801 0.6469652 0.9096081 0.005521065
## 456 0.0001308142    802 0.6468344 0.9096081 0.005521065
## 457 0.0001307569    803 0.6467036 0.9097170 0.005521185
## 458 0.0001306186    804 0.6465728 0.9101592 0.005524390
## 459 0.0001304820    805 0.6464422 0.9102821 0.005525207
## 460 0.0001304682    806 0.6463117 0.9102333 0.005525526
## 461 0.0001303732    809 0.6459203 0.9103117 0.005525970
## 462 0.0001302997    814 0.6452629 0.9106091 0.005528531
## 463 0.0001302223    815 0.6451326 0.9106268 0.005528489
## 464 0.0001302149    816 0.6450023 0.9109486 0.005531530
## 465 0.0001295921    817 0.6448721 0.9113050 0.005534457
## 466 0.0001295220    818 0.6447425 0.9116727 0.005540546
## 467 0.0001294812    822 0.6442245 0.9116727 0.005540738
## 468 0.0001294271    823 0.6440950 0.9116471 0.005540690
## 469 0.0001294038    824 0.6439655 0.9117763 0.005541176
## 470 0.0001293859    825 0.6438361 0.9117763 0.005541176
## 471 0.0001292042    827 0.6435774 0.9119020 0.005542582
## 472 0.0001290050    828 0.6434482 0.9122915 0.005546603
## 473 0.0001289536    829 0.6433192 0.9127194 0.005550886
## 474 0.0001283621    831 0.6430613 0.9137973 0.005556397
## 475 0.0001283513    834 0.6426762 0.9144538 0.005560713
## 476 0.0001282829    836 0.6424195 0.9145409 0.005561323
## 477 0.0001282645    838 0.6421629 0.9146634 0.005561695
## 478 0.0001281255    840 0.6419064 0.9146960 0.005562721
## 479 0.0001278527    841 0.6417782 0.9147913 0.005565155
## 480 0.0001277589    843 0.6415225 0.9151041 0.005570410
## 481 0.0001276196    844 0.6413948 0.9154783 0.005572910
## 482 0.0001275362    846 0.6411395 0.9154206 0.005573994
## 483 0.0001272909    847 0.6410120 0.9153781 0.005574591
## 484 0.0001271248    848 0.6408847 0.9161168 0.005580035
## 485 0.0001270303    849 0.6407576 0.9161569 0.005580520
## 486 0.0001269255    850 0.6406306 0.9162730 0.005581866
## 487 0.0001267221    851 0.6405036 0.9165719 0.005584140
## 488 0.0001267122    852 0.6403769 0.9168054 0.005586360
## 489 0.0001264738    853 0.6402502 0.9167951 0.005586908
## 490 0.0001264110    855 0.6399973 0.9168520 0.005588092
## 491 0.0001264016    856 0.6398708 0.9168228 0.005588103
## 492 0.0001262203    857 0.6397444 0.9172970 0.005592364
## 493 0.0001262147    861 0.6392396 0.9180198 0.005596504
## 494 0.0001259333    869 0.6382263 0.9180060 0.005597252
## 495 0.0001258232    870 0.6381003 0.9185907 0.005600849
## 496 0.0001257388    871 0.6379745 0.9187699 0.005602144
## 497 0.0001255720    872 0.6378488 0.9191268 0.005604929
## 498 0.0001254309    877 0.6371746 0.9194953 0.005607363
## 499 0.0001253412    878 0.6370492 0.9197893 0.005608898
## 500 0.0001251266    880 0.6367985 0.9198473 0.005609044
## 501 0.0001251217    881 0.6366734 0.9201031 0.005611051
## 502 0.0001250543    884 0.6362980 0.9202608 0.005612111
## 503 0.0001249407    885 0.6361730 0.9204451 0.005613658
## 504 0.0001248368    888 0.6357948 0.9209271 0.005616994
## 505 0.0001247708    889 0.6356699 0.9209457 0.005617687
## 506 0.0001244094    897 0.6346544 0.9214339 0.005622037
## 507 0.0001242265    898 0.6345299 0.9221873 0.005626715
## 508 0.0001241720    899 0.6344057 0.9224665 0.005628788
## 509 0.0001240003    902 0.6340332 0.9227766 0.005630778
## 510 0.0001237837    903 0.6339092 0.9228776 0.005632387
## 511 0.0001236756    908 0.6332903 0.9228829 0.005634702
## 512 0.0001236440    909 0.6331666 0.9228829 0.005634702
## 513 0.0001235738    910 0.6330430 0.9229314 0.005635053
## 514 0.0001232329    911 0.6329194 0.9234821 0.005640248
## 515 0.0001232028    912 0.6327962 0.9237108 0.005642790
## 516 0.0001230743    913 0.6326730 0.9238099 0.005643145
## 517 0.0001229293    914 0.6325499 0.9241608 0.005644796
## 518 0.0001225609    915 0.6324270 0.9245045 0.005647914
## 519 0.0001224797    916 0.6323044 0.9248064 0.005650666
## 520 0.0001222147    918 0.6320594 0.9248914 0.005652432
## 521 0.0001221771    919 0.6319372 0.9252229 0.005655265
## 522 0.0001221524    920 0.6318150 0.9254469 0.005657246
## 523 0.0001221256    922 0.6315707 0.9254456 0.005657516
## 524 0.0001220582    926 0.6310822 0.9254372 0.005657503
## 525 0.0001219481    928 0.6308381 0.9255015 0.005658276
## 526 0.0001219232    929 0.6307162 0.9256974 0.005659941
## 527 0.0001219123    931 0.6304723 0.9256974 0.005659941
## 528 0.0001217516    932 0.6303504 0.9256718 0.005662174
## 529 0.0001217317    933 0.6302287 0.9256740 0.005663403
## 530 0.0001214925    934 0.6301069 0.9260796 0.005667307
## 531 0.0001212981    935 0.6299854 0.9263414 0.005669860
## 532 0.0001211865    937 0.6297428 0.9267591 0.005674396
## 533 0.0001210678    939 0.6295005 0.9270030 0.005676027
## 534 0.0001208038    941 0.6292583 0.9271867 0.005678719
## 535 0.0001201704    944 0.6288885 0.9272421 0.005682476
## 536 0.0001200585    945 0.6287683 0.9274460 0.005684792
## 537 0.0001199014    947 0.6285282 0.9276521 0.005687147
## 538 0.0001198762    956 0.6274227 0.9279134 0.005688480
## 539 0.0001198046    957 0.6273028 0.9280909 0.005690357
## 540 0.0001197088    959 0.6270632 0.9285047 0.005695016
## 541 0.0001196282    962 0.6267041 0.9288190 0.005699528
## 542 0.0001195730    963 0.6265845 0.9290038 0.005703009
## 543 0.0001195038    965 0.6263453 0.9297214 0.005706842
## 544 0.0001194504    967 0.6261063 0.9297900 0.005707534
## 545 0.0001192254    969 0.6258674 0.9299547 0.005707932
## 546 0.0001192192    970 0.6257482 0.9300408 0.005708595
## 547 0.0001191837    973 0.6253905 0.9300408 0.005708595
## 548 0.0001191440    975 0.6251522 0.9300523 0.005708881
## 549 0.0001191364    976 0.6250330 0.9300523 0.005708881
## 550 0.0001190715    978 0.6247948 0.9300449 0.005709562
## 551 0.0001190178    984 0.6240803 0.9300736 0.005709781
## 552 0.0001190144    986 0.6238423 0.9300068 0.005709815
## 553 0.0001187927    988 0.6236043 0.9302893 0.005711878
## 554 0.0001186963    989 0.6234855 0.9303902 0.005713443
## 555 0.0001184171    991 0.6232481 0.9304144 0.005714230
## 556 0.0001183232    993 0.6230112 0.9309410 0.005718932
## 557 0.0001183232    994 0.6228929 0.9310655 0.005719730
## 558 0.0001183039    995 0.6227746 0.9310655 0.005719730
## 559 0.0001183039    996 0.6226563 0.9310655 0.005719730
## 560 0.0001181282    997 0.6225380 0.9312046 0.005720268
## 561 0.0001180846   1001 0.6220627 0.9315875 0.005722923
## 562 0.0001179638   1002 0.6219446 0.9316157 0.005724088
## 563 0.0001179065   1008 0.6211959 0.9316947 0.005724766
## 564 0.0001178388   1012 0.6207242 0.9318756 0.005726282
## 565 0.0001177554   1016 0.6201969 0.9318815 0.005726416
## 566 0.0001173533   1017 0.6200791 0.9321730 0.005729638
## 567 0.0001170814   1020 0.6197271 0.9322249 0.005732757
## 568 0.0001170214   1025 0.6191417 0.9324300 0.005733991
## 569 0.0001169741   1026 0.6190246 0.9326005 0.005734678
## 570 0.0001169519   1029 0.6186737 0.9325228 0.005735224
## 571 0.0001167596   1030 0.6185568 0.9326856 0.005736478
## 572 0.0001167448   1035 0.6179539 0.9327125 0.005736617
## 573 0.0001165840   1036 0.6178372 0.9326904 0.005738070
## 574 0.0001156680   1042 0.6171377 0.9344180 0.005751157
## 575 0.0001156539   1043 0.6170220 0.9350212 0.005758441
## 576 0.0001155877   1045 0.6167907 0.9349570 0.005758398
## 577 0.0001155337   1046 0.6166751 0.9348033 0.005758554
## 578 0.0001154929   1049 0.6163285 0.9349723 0.005759703
## 579 0.0001154250   1050 0.6162130 0.9350211 0.005760476
## 580 0.0001152340   1051 0.6160976 0.9351904 0.005761431
## 581 0.0001152301   1052 0.6159824 0.9352080 0.005761906
## 582 0.0001151900   1053 0.6158671 0.9352127 0.005762057
## 583 0.0001148201   1061 0.6149456 0.9357576 0.005768366
## 584 0.0001146389   1062 0.6148308 0.9363501 0.005772691
## 585 0.0001146160   1064 0.6146015 0.9363480 0.005773861
## 586 0.0001145763   1066 0.6143723 0.9364984 0.005775202
## 587 0.0001145255   1067 0.6142577 0.9366039 0.005775874
## 588 0.0001143520   1071 0.6137937 0.9365092 0.005776003
## 589 0.0001142238   1073 0.6135650 0.9368521 0.005778966
## 590 0.0001138322   1074 0.6134508 0.9372757 0.005782839
## 591 0.0001137753   1076 0.6132231 0.9377754 0.005786766
## 592 0.0001136903   1077 0.6131093 0.9382236 0.005789140
## 593 0.0001134458   1078 0.6129956 0.9383778 0.005790028
## 594 0.0001134027   1080 0.6127687 0.9386395 0.005792686
## 595 0.0001133832   1082 0.6125419 0.9386642 0.005793716
## 596 0.0001131831   1084 0.6123152 0.9388277 0.005795088
## 597 0.0001129264   1085 0.6122020 0.9388904 0.005795795
## 598 0.0001127505   1086 0.6120891 0.9388588 0.005798913
## 599 0.0001127396   1088 0.6118636 0.9392989 0.005802392
## 600 0.0001127251   1091 0.6115253 0.9392864 0.005802275
## 601 0.0001127251   1093 0.6112999 0.9392864 0.005802275
## 602 0.0001127008   1094 0.6111872 0.9392864 0.005802275
## 603 0.0001126356   1095 0.6110745 0.9394586 0.005802748
## 604 0.0001124323   1098 0.6107366 0.9396695 0.005804371
## 605 0.0001123551   1099 0.6106241 0.9396943 0.005804772
## 606 0.0001123042   1102 0.6102871 0.9397724 0.005804563
## 607 0.0001117857   1103 0.6101747 0.9401324 0.005808490
## 608 0.0001117706   1104 0.6100630 0.9405325 0.005812370
## 609 0.0001116228   1108 0.6096159 0.9405333 0.005812377
## 610 0.0001115533   1110 0.6093926 0.9406024 0.005813044
## 611 0.0001115444   1111 0.6092811 0.9405327 0.005813211
## 612 0.0001113394   1113 0.6090580 0.9409953 0.005815783
## 613 0.0001111043   1114 0.6089467 0.9415525 0.005819962
## 614 0.0001107579   1115 0.6088355 0.9422932 0.005826855
## 615 0.0001104786   1116 0.6087248 0.9429143 0.005832859
## 616 0.0001104600   1117 0.6086143 0.9431123 0.005834933
## 617 0.0001102283   1125 0.6077306 0.9431868 0.005835978
## 618 0.0001101662   1127 0.6075102 0.9434068 0.005839667
## 619 0.0001099933   1129 0.6072898 0.9435231 0.005841413
## 620 0.0001099321   1130 0.6071799 0.9440410 0.005845377
## 621 0.0001096799   1132 0.6069600 0.9441613 0.005845998
## 622 0.0001096348   1133 0.6068503 0.9442569 0.005847706
## 623 0.0001095188   1135 0.6066310 0.9443831 0.005848134
## 624 0.0001095044   1136 0.6065215 0.9446321 0.005849619
## 625 0.0001094835   1137 0.6064120 0.9448168 0.005851143
## 626 0.0001090118   1139 0.6061930 0.9452209 0.005853607
## 627 0.0001089864   1140 0.6060840 0.9456379 0.005857418
## 628 0.0001089235   1145 0.6055205 0.9456487 0.005857340
## 629 0.0001084139   1147 0.6053027 0.9458646 0.005859760
## 630 0.0001083011   1148 0.6051943 0.9467731 0.005866370
## 631 0.0001082271   1149 0.6050860 0.9468311 0.005867547
## 632 0.0001081845   1151 0.6048695 0.9470322 0.005869671
## 633 0.0001078452   1162 0.6036356 0.9469790 0.005871297
## 634 0.0001077795   1163 0.6035277 0.9471799 0.005873477
## 635 0.0001075457   1166 0.6032044 0.9473033 0.005874763
## 636 0.0001074379   1172 0.6025576 0.9476141 0.005877965
## 637 0.0001073544   1174 0.6023427 0.9478199 0.005878701
## 638 0.0001071990   1175 0.6022354 0.9482288 0.005881718
## 639 0.0001069379   1177 0.6020210 0.9487750 0.005884217
## 640 0.0001069296   1178 0.6019140 0.9492875 0.005887184
## 641 0.0001069090   1180 0.6017002 0.9493430 0.005887581
## 642 0.0001068860   1182 0.6014863 0.9493430 0.005887581
## 643 0.0001064015   1184 0.6012726 0.9494814 0.005890534
## 644 0.0001060993   1185 0.6011662 0.9502528 0.005896817
## 645 0.0001057935   1186 0.6010601 0.9507181 0.005899195
## 646 0.0001057056   1187 0.6009543 0.9509845 0.005902476
## 647 0.0001056284   1188 0.6008486 0.9512395 0.005906182
## 648 0.0001055651   1189 0.6007429 0.9511879 0.005907161
## 649 0.0001054231   1190 0.6006374 0.9513255 0.005908843
## 650 0.0001053342   1192 0.6004265 0.9513992 0.005909534
## 651 0.0001053334   1193 0.6003212 0.9514148 0.005910314
## 652 0.0001052973   1194 0.6002159 0.9514148 0.005910314
## 653 0.0001049444   1195 0.6001106 0.9514960 0.005912067
## 654 0.0001049023   1198 0.5997957 0.9515683 0.005912946
## 655 0.0001048262   1201 0.5994810 0.9519053 0.005915514
## 656 0.0001048030   1202 0.5993762 0.9519608 0.005916022
## 657 0.0001047930   1203 0.5992714 0.9518923 0.005916068
## 658 0.0001047710   1204 0.5991666 0.9518886 0.005916083
## 659 0.0001046560   1205 0.5990618 0.9519465 0.005916317
## 660 0.0001045788   1207 0.5988525 0.9521357 0.005919039
## 661 0.0001042962   1210 0.5985388 0.9526297 0.005922254
## 662 0.0001042962   1211 0.5984345 0.9528719 0.005923359
## 663 0.0001042352   1212 0.5983302 0.9529719 0.005923636
## 664 0.0001041659   1213 0.5982260 0.9530642 0.005924980
## 665 0.0001041603   1214 0.5981218 0.9530893 0.005925189
## 666 0.0001040375   1215 0.5980176 0.9531953 0.005927521
## 667 0.0001040307   1218 0.5977055 0.9532497 0.005927985
## 668 0.0001040036   1219 0.5976015 0.9533221 0.005928681
## 669 0.0001037198   1221 0.5973935 0.9533392 0.005927968
## 670 0.0001037148   1225 0.5969745 0.9536526 0.005928493
## 671 0.0001035966   1227 0.5967671 0.9537876 0.005929351
## 672 0.0001035159   1230 0.5964563 0.9540552 0.005931413
## 673 0.0001034897   1231 0.5963528 0.9544489 0.005935269
## 674 0.0001032747   1234 0.5960423 0.9545564 0.005936865
## 675 0.0001030149   1236 0.5958357 0.9550281 0.005939935
## 676 0.0001028063   1237 0.5957327 0.9554680 0.005943554
## 677 0.0001027917   1239 0.5955271 0.9554327 0.005944362
## 678 0.0001027493   1241 0.5953215 0.9554006 0.005944394
## 679 0.0001024705   1242 0.5952188 0.9555915 0.005946010
## 680 0.0001023376   1245 0.5949114 0.9556168 0.005948097
## 681 0.0001022147   1247 0.5947067 0.9557567 0.005950012
## 682 0.0001021543   1251 0.5942978 0.9557211 0.005950212
## 683 0.0001019282   1252 0.5941957 0.9557955 0.005951532
## 684 0.0001018293   1253 0.5940937 0.9561670 0.005953567
## 685 0.0001018250   1256 0.5937883 0.9564446 0.005955729
## 686 0.0001018155   1261 0.5932791 0.9564446 0.005955729
## 687 0.0001016380   1262 0.5931773 0.9567148 0.005957671
## 688 0.0001016338   1263 0.5930757 0.9569998 0.005959231
## 689 0.0001014040   1264 0.5929740 0.9572651 0.005961280
## 690 0.0001010265   1272 0.5921568 0.9576443 0.005964658
## 691 0.0001009297   1273 0.5920558 0.9580002 0.005967949
## 692 0.0001008593   1282 0.5910960 0.9581051 0.005968316
## 693 0.0001007212   1283 0.5909951 0.9581430 0.005968684
## 694 0.0001006552   1285 0.5907937 0.9585969 0.005972043
## 695 0.0001004038   1287 0.5905924 0.9588306 0.005974590
## 696 0.0001003836   1290 0.5902912 0.9590302 0.005975981
## 697 0.0001000000   1293 0.5899900 0.9590842 0.005977293
## 
## Variable importance
##      reward_length               goal description_length 
##                 25                 19                 17 
##           category        mo_launched  campaign_duration 
##                 14                 11                  9 
##       video_status social_media_count                usa 
##                  3                  2                  1 
## 
## Node number 1: 39480 observations,    complexity param=0.03433136
##   mean=0.5571935, MSE=0.2467289 
##   left son=2 (19858 obs) right son=3 (19622 obs)
##   Primary splits:
##       goal               < 4320.84  to the right, improve=0.03433136, (0 missing)
##       category           splits as  LRRRRRRRLRRRLLR, improve=0.03196349, (0 missing)
##       reward_length      < 4056.5   to the left,  improve=0.02676679, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.02034017, (0 missing)
##       description_length < 1119.5   to the left,  improve=0.01583421, (0 missing)
##   Surrogate splits:
##       reward_length      < 7034.5   to the right, agree=0.639, adj=0.273, (0 split)
##       description_length < 2632.5   to the right, agree=0.628, adj=0.251, (0 split)
##       category           splits as  RLRRLLLLLLRLRLR, agree=0.596, adj=0.187, (0 split)
##       campaign_duration  < 29.995   to the right, agree=0.569, adj=0.133, (0 split)
##       video_status       < 0.5      to the right, agree=0.560, adj=0.115, (0 split)
## 
## Node number 2: 19858 observations,    complexity param=0.03397122
##   mean=0.4657065, MSE=0.248824 
##   left son=4 (4221 obs) right son=5 (15637 obs)
##   Primary splits:
##       reward_length      < 4814.5   to the left,  improve=0.06697005, (0 missing)
##       description_length < 1925.5   to the left,  improve=0.04453456, (0 missing)
##       category           splits as  LRRRRRRRLRRRLLR, improve=0.04166823, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.03845977, (0 missing)
##       goal               < 18664.1  to the right, improve=0.02109630, (0 missing)
##   Surrogate splits:
##       description_length < 894.5    to the left,  agree=0.803, adj=0.073, (0 split)
##       video_status       < 0.5      to the left,  agree=0.788, adj=0.004, (0 split)
##       goal               < 2500000  to the right, agree=0.788, adj=0.001, (0 split)
##       campaign_duration  < 7.49     to the left,  agree=0.788, adj=0.001, (0 split)
## 
## Node number 3: 19622 observations,    complexity param=0.0148658
##   mean=0.6497809, MSE=0.2275657 
##   left son=6 (6380 obs) right son=7 (13242 obs)
##   Primary splits:
##       reward_length      < 4056.5   to the left,  improve=0.03242913, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.02657808, (0 missing)
##       category           splits as  LRRRRRRRLRLRLLR, improve=0.02453957, (0 missing)
##       description_length < 1066.5   to the left,  improve=0.01988858, (0 missing)
##       campaign_duration  < 29.785   to the right, improve=0.01356609, (0 missing)
##   Surrogate splits:
##       description_length < 787.5    to the left,  agree=0.697, adj=0.068, (0 split)
##       video_status       < 0.5      to the left,  agree=0.684, adj=0.029, (0 split)
##       goal               < 331.5    to the left,  agree=0.679, adj=0.011, (0 split)
##       campaign_duration  < 7.745    to the left,  agree=0.675, adj=0.002, (0 split)
## 
## Node number 4: 4221 observations,    complexity param=0.005277226
##   mean=0.2172471, MSE=0.1700508 
##   left son=8 (3119 obs) right son=9 (1102 obs)
##   Primary splits:
##       category           splits as  LRR-RRR-L-L-LLR, improve=0.07161580, (0 missing)
##       description_length < 1650.5   to the left,  improve=0.05300920, (0 missing)
##       reward_length      < 2966.5   to the left,  improve=0.05037717, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.03798540, (0 missing)
##       goal               < 12550    to the right, improve=0.03231960, (0 missing)
##   Surrogate splits:
##       reward_length     < 4807.5   to the left,  agree=0.740, adj=0.005, (0 split)
##       campaign_duration < 90.98    to the left,  agree=0.739, adj=0.002, (0 split)
## 
## Node number 5: 15637 observations,    complexity param=0.01522393
##   mean=0.5327748, MSE=0.2489258 
##   left son=10 (6497 obs) right son=11 (9140 obs)
##   Primary splits:
##       category           splits as  LRRRRRRRLRRRLLR, improve=0.03809787, (0 missing)
##       goal               < 15525    to the right, improve=0.03077773, (0 missing)
##       reward_length      < 9565     to the left,  improve=0.01700483, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.01567898, (0 missing)
##       description_length < 1981.5   to the left,  improve=0.01366007, (0 missing)
##   Surrogate splits:
##       description_length < 5760     to the right, agree=0.637, adj=0.126, (0 split)
##       usa                < 0.5      to the left,  agree=0.592, adj=0.017, (0 split)
##       goal               < 110555.5 to the right, agree=0.591, adj=0.015, (0 split)
##       video_status       < 0.5      to the left,  agree=0.590, adj=0.013, (0 split)
## 
## Node number 6: 6380 observations,    complexity param=0.009398312
##   mean=0.5260188, MSE=0.249323 
##   left son=12 (5037 obs) right son=13 (1343 obs)
##   Primary splits:
##       category           splits as  LRR-LRR-LRL-LLR, improve=0.05755247, (0 missing)
##       goal               < 817.5    to the right, improve=0.03316755, (0 missing)
##       campaign_duration  < 29.78    to the right, improve=0.02658277, (0 missing)
##       reward_length      < 2226.5   to the left,  improve=0.01568078, (0 missing)
##       description_length < 1245.5   to the left,  improve=0.01546437, (0 missing)
##   Surrogate splits:
##       photo_key < 0.5      to the right, agree=0.79, adj=0.002, (0 split)
## 
## Node number 7: 13242 observations,    complexity param=0.005901405
##   mean=0.7094095, MSE=0.2061477 
##   left son=14 (4971 obs) right son=15 (8271 obs)
##   Primary splits:
##       category           splits as  LRRRRRRRLRRRLRR, improve=0.021058170, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.018681900, (0 missing)
##       campaign_duration  < 29.935   to the right, improve=0.009746099, (0 missing)
##       reward_length      < 9063.5   to the left,  improve=0.008812514, (0 missing)
##       description_length < 1117.5   to the left,  improve=0.007748337, (0 missing)
##   Surrogate splits:
##       description_length < 4990     to the right, agree=0.649, adj=0.066, (0 split)
##       reward_length      < 19382    to the right, agree=0.629, adj=0.010, (0 split)
##       goal               < 365      to the left,  agree=0.627, adj=0.007, (0 split)
##       campaign_duration  < 7.465    to the left,  agree=0.625, adj=0.002, (0 split)
## 
## Node number 8: 3119 observations,    complexity param=0.001578453
##   mean=0.1516512, MSE=0.1286531 
##   left son=16 (1313 obs) right son=17 (1806 obs)
##   Primary splits:
##       reward_length      < 2966.5   to the left,  improve=0.03831715, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.02756224, (0 missing)
##       description_length < 1511.5   to the left,  improve=0.02473749, (0 missing)
##       goal               < 7811.5   to the right, improve=0.02268352, (0 missing)
##       category           splits as  R-------L-R-LR-, improve=0.01506831, (0 missing)
##   Surrogate splits:
##       description_length < 1083.5   to the left,  agree=0.626, adj=0.112, (0 split)
##       video_status       < 0.5      to the left,  agree=0.612, adj=0.078, (0 split)
##       campaign_duration  < 86.76    to the right, agree=0.584, adj=0.012, (0 split)
##       goal               < 4489     to the left,  agree=0.581, adj=0.005, (0 split)
## 
## Node number 9: 1102 observations,    complexity param=0.003211728
##   mean=0.4029038, MSE=0.2405723 
##   left son=18 (523 obs) right son=19 (579 obs)
##   Primary splits:
##       description_length < 1705.5   to the left,  improve=0.11800720, (0 missing)
##       goal               < 16750    to the right, improve=0.10165810, (0 missing)
##       category           splits as  -RR-RRL-------R, improve=0.08438654, (0 missing)
##       reward_length      < 2488     to the left,  improve=0.04799725, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.03367258, (0 missing)
##   Surrogate splits:
##       reward_length < 3034.5   to the left,  agree=0.623, adj=0.207, (0 split)
##       video_status  < 0.5      to the left,  agree=0.561, adj=0.075, (0 split)
##       category      splits as  -RR-RRL-------R, agree=0.546, adj=0.044, (0 split)
##       mo_launched   splits as  LRLRRLRLRLRR, agree=0.544, adj=0.040, (0 split)
##       goal          < 15250    to the right, agree=0.539, adj=0.029, (0 split)
## 
## Node number 10: 6497 observations,    complexity param=0.006807523
##   mean=0.4172695, MSE=0.2431557 
##   left son=20 (4234 obs) right son=21 (2263 obs)
##   Primary splits:
##       reward_length      < 11466.5  to the left,  improve=0.041974840, (0 missing)
##       description_length < 4686     to the left,  improve=0.029926210, (0 missing)
##       goal               < 15525    to the right, improve=0.018840530, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.013047630, (0 missing)
##       category           splits as  L-------R---LR-, improve=0.006199566, (0 missing)
##   Surrogate splits:
##       description_length < 7768     to the left,  agree=0.713, adj=0.176, (0 split)
##       goal               < 99499.5  to the left,  agree=0.663, adj=0.032, (0 split)
## 
## Node number 11: 9140 observations,    complexity param=0.008380585
##   mean=0.6148796, MSE=0.2368027 
##   left son=22 (600 obs) right son=23 (8540 obs)
##   Primary splits:
##       goal               < 54100.5  to the right, improve=0.03771714, (0 missing)
##       category           splits as  -RRRRRLR-RLR--R, improve=0.03381365, (0 missing)
##       description_length < 2036.5   to the left,  improve=0.02643643, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.01325275, (0 missing)
##       campaign_duration  < 55.88    to the right, improve=0.01296741, (0 missing)
##   Surrogate splits:
##       reward_length < 54619.5  to the right, agree=0.935, adj=0.008, (0 split)
## 
## Node number 12: 5037 observations,    complexity param=0.004944309
##   mean=0.4641652, MSE=0.2487159 
##   left son=24 (3347 obs) right son=25 (1690 obs)
##   Primary splits:
##       goal               < 870      to the right, improve=0.03844389, (0 missing)
##       campaign_duration  < 26.935   to the right, improve=0.02211284, (0 missing)
##       category           splits as  R---R---R-R-LL-, improve=0.01539722, (0 missing)
##       description_length < 1276.5   to the left,  improve=0.01497619, (0 missing)
##       reward_length      < 2238.5   to the left,  improve=0.01139925, (0 missing)
##   Surrogate splits:
##       campaign_duration < 16.425   to the right, agree=0.682, adj=0.051, (0 split)
##       reward_length     < 292      to the right, agree=0.665, adj=0.001, (0 split)
## 
## Node number 13: 1343 observations,    complexity param=0.0007338727
##   mean=0.7580045, MSE=0.1834337 
##   left son=26 (896 obs) right son=27 (447 obs)
##   Primary splits:
##       campaign_duration  < 29.825   to the right, improve=0.02901769, (0 missing)
##       goal               < 2450     to the right, improve=0.02627751, (0 missing)
##       description_length < 1018     to the left,  improve=0.01220091, (0 missing)
##       reward_length      < 2571     to the left,  improve=0.01090105, (0 missing)
##       social_media_count splits as  RRLL,         improve=0.00772625, (0 missing)
##   Surrogate splits:
##       usa                < 0.5      to the right, agree=0.669, adj=0.007, (0 split)
##       goal               < 337.5    to the right, agree=0.669, adj=0.007, (0 split)
##       category           splits as  -LL--LL--L----R, agree=0.668, adj=0.002, (0 split)
##       description_length < 8557.5   to the left,  agree=0.668, adj=0.002, (0 split)
## 
## Node number 14: 4971 observations,    complexity param=0.002389555
##   mean=0.6244216, MSE=0.2345193 
##   left son=28 (1857 obs) right son=29 (3114 obs)
##   Primary splits:
##       description_length < 2074     to the left,  improve=0.019966040, (0 missing)
##       reward_length      < 8505.5   to the left,  improve=0.016708780, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.014787230, (0 missing)
##       goal               < 999.5    to the right, improve=0.010297850, (0 missing)
##       campaign_duration  < 29.955   to the right, improve=0.009757996, (0 missing)
##   Surrogate splits:
##       reward_length     < 5269.5   to the left,  agree=0.657, adj=0.082, (0 split)
##       goal              < 102.5    to the left,  agree=0.630, adj=0.009, (0 split)
##       campaign_duration < 2.04     to the left,  agree=0.627, adj=0.001, (0 split)
## 
## Node number 15: 8271 observations,    complexity param=0.00263931
##   mean=0.7604885, MSE=0.1821458 
##   left son=30 (1204 obs) right son=31 (7067 obs)
##   Primary splits:
##       video_status       < 0.5      to the left,  improve=0.017065170, (0 missing)
##       description_length < 1123.5   to the left,  improve=0.015072030, (0 missing)
##       campaign_duration  < 29.485   to the right, improve=0.010668240, (0 missing)
##       reward_length      < 9063.5   to the left,  improve=0.007221349, (0 missing)
##       category           splits as  -RRRLRRR-RLR-LR, improve=0.006883645, (0 missing)
##   Surrogate splits:
##       photo_key < 0.5      to the left,  agree=0.855, adj=0.004, (0 split)
## 
## Node number 16: 1313 observations,    complexity param=0.0001747904
##   mean=0.06930693, MSE=0.06450348 
##   left son=32 (555 obs) right son=33 (758 obs)
##   Primary splits:
##       video_status       < 0.5      to the left,  improve=0.01859863, (0 missing)
##       description_length < 1799.5   to the left,  improve=0.01739318, (0 missing)
##       campaign_duration  < 28.015   to the right, improve=0.01261486, (0 missing)
##       goal               < 6546     to the right, improve=0.01137428, (0 missing)
##       reward_length      < 2159.5   to the left,  improve=0.00975381, (0 missing)
##   Surrogate splits:
##       category          splits as  R-------R-R-LR-, agree=0.609, adj=0.074, (0 split)
##       campaign_duration < 59.935   to the right, agree=0.596, adj=0.043, (0 split)
##       reward_length     < 620.5    to the left,  agree=0.590, adj=0.031, (0 split)
##       goal              < 4825     to the left,  agree=0.586, adj=0.022, (0 split)
##       mo_launched       splits as  RLRRRRRRRRRR, agree=0.585, adj=0.018, (0 split)
## 
## Node number 17: 1806 observations,    complexity param=0.001025664
##   mean=0.2115172, MSE=0.1667777 
##   left son=34 (827 obs) right son=35 (979 obs)
##   Primary splits:
##       goal               < 8499.5   to the right, improve=0.033170100, (0 missing)
##       category           splits as  R-------L-R-LR-, improve=0.025532310, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.020536420, (0 missing)
##       description_length < 1511.5   to the left,  improve=0.020063670, (0 missing)
##       reward_length      < 3590     to the left,  improve=0.007221526, (0 missing)
##   Surrogate splits:
##       category           splits as  R-------L-R-RL-, agree=0.589, adj=0.103, (0 split)
##       description_length < 2754     to the right, agree=0.573, adj=0.068, (0 split)
##       mo_launched        splits as  RLRRRRLRRRRL, agree=0.553, adj=0.023, (0 split)
##       reward_length      < 3005.5   to the left,  agree=0.547, adj=0.010, (0 split)
##       campaign_duration  < 89.94    to the right, agree=0.545, adj=0.006, (0 split)
## 
## Node number 18: 523 observations,    complexity param=0.0009089677
##   mean=0.2256214, MSE=0.1747164 
##   left son=36 (279 obs) right son=37 (244 obs)
##   Primary splits:
##       goal               < 9875     to the right, improve=0.096896990, (0 missing)
##       reward_length      < 3871.5   to the left,  improve=0.042334490, (0 missing)
##       description_length < 786      to the left,  improve=0.032805180, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.010616130, (0 missing)
##       mo_launched        splits as  LRLRLRLLRLRL, improve=0.009726853, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  LRRLLRRLLLLL, agree=0.572, adj=0.082, (0 split)
##       reward_length      < 3157     to the left,  agree=0.556, adj=0.049, (0 split)
##       campaign_duration  < 26.645   to the right, agree=0.553, adj=0.041, (0 split)
##       category           splits as  --R-R-L-------R, agree=0.549, adj=0.033, (0 split)
##       description_length < 1598.5   to the left,  agree=0.547, adj=0.029, (0 split)
## 
## Node number 19: 579 observations,    complexity param=0.001979099
##   mean=0.5630397, MSE=0.246026 
##   left son=38 (104 obs) right son=39 (475 obs)
##   Primary splits:
##       goal              < 20500    to the right, improve=0.13533340, (0 missing)
##       category          splits as  -RR-RRL-------R, improve=0.09242532, (0 missing)
##       video_status      < 0.5      to the left,  improve=0.04243792, (0 missing)
##       reward_length     < 2476.5   to the left,  improve=0.02315173, (0 missing)
##       campaign_duration < 59.985   to the right, improve=0.02137029, (0 missing)
## 
## Node number 20: 4234 observations,    complexity param=0.003251268
##   mean=0.3434105, MSE=0.2254797 
##   left son=40 (2412 obs) right son=41 (1822 obs)
##   Primary splits:
##       goal               < 9620     to the right, improve=0.03317353, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.01436919, (0 missing)
##       description_length < 1961.5   to the left,  improve=0.01288037, (0 missing)
##       reward_length      < 6679.5   to the left,  improve=0.01225580, (0 missing)
##       category           splits as  R-------L---LR-, improve=0.00669657, (0 missing)
##   Surrogate splits:
##       category           splits as  R-------L---RL-, agree=0.609, adj=0.092, (0 split)
##       campaign_duration  < 29.005   to the right, agree=0.582, adj=0.028, (0 split)
##       description_length < 2680.5   to the right, agree=0.579, adj=0.022, (0 split)
##       reward_length      < 5341     to the right, agree=0.572, adj=0.004, (0 split)
##       mo_launched        splits as  RLLLLLLLLLLL, agree=0.570, adj=0.002, (0 split)
## 
## Node number 21: 2263 observations,    complexity param=0.001888303
##   mean=0.5554574, MSE=0.2469245 
##   left son=42 (699 obs) right son=43 (1564 obs)
##   Primary splits:
##       goal               < 26282.5  to the right, improve=0.032916980, (0 missing)
##       description_length < 4737     to the left,  improve=0.017289870, (0 missing)
##       reward_length      < 21987    to the left,  improve=0.015617600, (0 missing)
##       category           splits as  L-------R---LR-, improve=0.009791007, (0 missing)
##       usa                < 0.5      to the left,  improve=0.005938965, (0 missing)
##   Surrogate splits:
##       description_length < 16583    to the right, agree=0.701, adj=0.031, (0 split)
##       category           splits as  R-------R---RL-, agree=0.698, adj=0.021, (0 split)
##       reward_length      < 56684.5  to the right, agree=0.692, adj=0.003, (0 split)
##       social_media_count splits as  RRRL, agree=0.692, adj=0.001, (0 split)
## 
## Node number 22: 600 observations,    complexity param=0.002517023
##   mean=0.2583333, MSE=0.1915972 
##   left son=44 (549 obs) right son=45 (51 obs)
##   Primary splits:
##       category           splits as  -R--RRLR-RL----, improve=0.21327690, (0 missing)
##       description_length < 4673.5   to the left,  improve=0.11774210, (0 missing)
##       reward_length      < 8063.5   to the left,  improve=0.05133060, (0 missing)
##       mo_launched        splits as  LLLLRRLLLLLL, improve=0.02970158, (0 missing)
##       goal               < 121071.6 to the right, improve=0.02874872, (0 missing)
## 
## Node number 23: 8540 observations,    complexity param=0.006138929
##   mean=0.6399297, MSE=0.2304197 
##   left son=46 (2414 obs) right son=47 (6126 obs)
##   Primary splits:
##       description_length < 1895     to the left,  improve=0.03038872, (0 missing)
##       category           splits as  -RRRRRLR-RLR--R, improve=0.02875369, (0 missing)
##       goal               < 11887.5  to the right, improve=0.01489585, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.01278198, (0 missing)
##       campaign_duration  < 55.88    to the right, improve=0.01176983, (0 missing)
##   Surrogate splits:
##       photo_key         < 0.5      to the left,  agree=0.718, adj=0.002, (0 split)
##       campaign_duration < 90.98    to the right, agree=0.717, adj=0.000, (0 split)
##       reward_length     < 4819     to the left,  agree=0.717, adj=0.000, (0 split)
## 
## Node number 24: 3347 observations,    complexity param=0.002362954
##   mean=0.3946818, MSE=0.2389081 
##   left son=48 (1087 obs) right son=49 (2260 obs)
##   Primary splits:
##       category           splits as  R---R---L-R-LL-, improve=0.02792421, (0 missing)
##       reward_length      < 2300     to the left,  improve=0.02231109, (0 missing)
##       description_length < 1260.5   to the left,  improve=0.02129709, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.01814488, (0 missing)
##       campaign_duration  < 29.93    to the right, improve=0.01401629, (0 missing)
##   Surrogate splits:
##       description_length < 3293     to the right, agree=0.684, adj=0.027, (0 split)
##       campaign_duration  < 3.5      to the left,  agree=0.676, adj=0.002, (0 split)
##       goal               < 877.5    to the left,  agree=0.676, adj=0.002, (0 split)
##       reward_length      < 530      to the left,  agree=0.676, adj=0.001, (0 split)
## 
## Node number 25: 1690 observations,    complexity param=0.0007192397
##   mean=0.6017751, MSE=0.2396418 
##   left son=50 (1175 obs) right son=51 (515 obs)
##   Primary splits:
##       campaign_duration  < 25.465   to the right, improve=0.017299020, (0 missing)
##       description_length < 1308.5   to the left,  improve=0.015473580, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.008470545, (0 missing)
##       goal               < 699.5    to the right, improve=0.005977543, (0 missing)
##       reward_length      < 2254     to the left,  improve=0.005838675, (0 missing)
##   Surrogate splits:
##       reward_length < 549      to the right, agree=0.698, adj=0.008, (0 split)
##       goal          < 6        to the right, agree=0.697, adj=0.006, (0 split)
## 
## Node number 26: 896 observations,    complexity param=0.0004678901
##   mean=0.7064732, MSE=0.2073688 
##   left son=52 (467 obs) right son=53 (429 obs)
##   Primary splits:
##       goal               < 1465     to the right, improve=0.024529550, (0 missing)
##       campaign_duration  < 54.47    to the right, improve=0.011901490, (0 missing)
##       reward_length      < 2569.5   to the left,  improve=0.011392930, (0 missing)
##       description_length < 3889     to the left,  improve=0.010477710, (0 missing)
##       social_media_count splits as  RRLL,         improve=0.009105007, (0 missing)
##   Surrogate splits:
##       description_length < 1640.5   to the right, agree=0.567, adj=0.096, (0 split)
##       campaign_duration  < 34.3     to the right, agree=0.565, adj=0.091, (0 split)
##       video_status       < 0.5      to the right, agree=0.565, adj=0.091, (0 split)
##       reward_length      < 2929     to the right, agree=0.565, adj=0.091, (0 split)
##       mo_launched        splits as  RLRLLLLLRRRR, agree=0.564, adj=0.089, (0 split)
## 
## Node number 27: 447 observations,    complexity param=0.0002504948
##   mean=0.8612975, MSE=0.1194641 
##   left son=54 (36 obs) right son=55 (411 obs)
##   Primary splits:
##       description_length < 553      to the left,  improve=0.03626825, (0 missing)
##       mo_launched        splits as  RRRRRLLLRRRR, improve=0.01933203, (0 missing)
##       reward_length      < 3401.5   to the left,  improve=0.01257835, (0 missing)
##       campaign_duration  < 20.375   to the left,  improve=0.01179520, (0 missing)
##       goal               < 2450     to the right, improve=0.01058139, (0 missing)
## 
## Node number 28: 1857 observations,    complexity param=0.001111876
##   mean=0.5358104, MSE=0.2487176 
##   left son=56 (1214 obs) right son=57 (643 obs)
##   Primary splits:
##       goal               < 1052.5   to the right, improve=0.023449590, (0 missing)
##       campaign_duration  < 28.17    to the right, improve=0.021441620, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.017533470, (0 missing)
##       description_length < 799      to the left,  improve=0.007270082, (0 missing)
##       reward_length      < 8446.5   to the left,  improve=0.007200748, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 14.98    to the right, agree=0.675, adj=0.062, (0 split)
##       usa                < 0.5      to the right, agree=0.658, adj=0.011, (0 split)
##       reward_length      < 4063.5   to the right, agree=0.655, adj=0.003, (0 split)
##       description_length < 429.5    to the right, agree=0.654, adj=0.002, (0 split)
## 
## Node number 29: 3114 observations,    complexity param=0.001005204
##   mean=0.677264, MSE=0.2185775 
##   left son=58 (1040 obs) right son=59 (2074 obs)
##   Primary splits:
##       reward_length      < 6249.5   to the left,  improve=0.014385580, (0 missing)
##       goal               < 999.5    to the right, improve=0.008359531, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.008297251, (0 missing)
##       description_length < 5552.5   to the left,  improve=0.006783038, (0 missing)
##       category           splits as  R-------R---L--, improve=0.006124269, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 7.02     to the left,  agree=0.670, adj=0.012, (0 split)
##       goal               < 182.5    to the left,  agree=0.669, adj=0.008, (0 split)
##       description_length < 2076.5   to the left,  agree=0.667, adj=0.003, (0 split)
## 
## Node number 30: 1204 observations,    complexity param=0.0004856656
##   mean=0.6254153, MSE=0.234271 
##   left son=60 (924 obs) right son=61 (280 obs)
##   Primary splits:
##       category           splits as  -RR-LRRR--LR-L-, improve=0.016772180, (0 missing)
##       description_length < 821.5    to the left,  improve=0.015421350, (0 missing)
##       goal               < 2306.5   to the right, improve=0.011506780, (0 missing)
##       campaign_duration  < 29.215   to the right, improve=0.009496520, (0 missing)
##       reward_length      < 6584     to the left,  improve=0.007479204, (0 missing)
##   Surrogate splits:
##       goal              < 22.5     to the right, agree=0.770, adj=0.011, (0 split)
##       campaign_duration < 4.83     to the right, agree=0.768, adj=0.004, (0 split)
##       photo_key         < 0.5      to the right, agree=0.768, adj=0.004, (0 split)
## 
## Node number 31: 7067 observations,    complexity param=0.00151015
##   mean=0.7835008, MSE=0.1696273 
##   left son=62 (1546 obs) right son=63 (5521 obs)
##   Primary splits:
##       description_length < 1123.5   to the left,  improve=0.012271180, (0 missing)
##       campaign_duration  < 29.485   to the right, improve=0.011253010, (0 missing)
##       reward_length      < 9063.5   to the left,  improve=0.006701046, (0 missing)
##       goal               < 645      to the right, improve=0.004697170, (0 missing)
##       category           splits as  -RRRRRRR-RLR-LR, improve=0.004427593, (0 missing)
##   Surrogate splits:
##       campaign_duration < 91.46    to the right, agree=0.782, adj=0.001, (0 split)
## 
## Node number 32: 555 observations
##   mean=0.02882883, MSE=0.02799773 
## 
## Node number 33: 758 observations,    complexity param=0.0001747904
##   mean=0.09894459, MSE=0.08915456 
##   left son=66 (527 obs) right son=67 (231 obs)
##   Primary splits:
##       description_length < 1794     to the left,  improve=0.02707996, (0 missing)
##       goal               < 14500    to the right, improve=0.01571580, (0 missing)
##       campaign_duration  < 28.015   to the right, improve=0.01316202, (0 missing)
##       reward_length      < 2159.5   to the left,  improve=0.01108047, (0 missing)
##       mo_launched        splits as  LLLRRRRLRRRL, improve=0.01027246, (0 missing)
##   Surrogate splits:
##       category      splits as  L-------L-L-LR-, agree=0.708, adj=0.043, (0 split)
##       goal          < 97450    to the left,  agree=0.702, adj=0.022, (0 split)
##       reward_length < 2945.5   to the left,  agree=0.697, adj=0.004, (0 split)
## 
## Node number 34: 827 observations,    complexity param=0.0002778713
##   mean=0.1305925, MSE=0.1135381 
##   left son=68 (396 obs) right son=69 (431 obs)
##   Primary splits:
##       category           splits as  R-------L-R-LR-, improve=0.02433273, (0 missing)
##       goal               < 17427.5  to the right, improve=0.02381517, (0 missing)
##       description_length < 1622.5   to the left,  improve=0.01870736, (0 missing)
##       reward_length      < 3686     to the left,  improve=0.01700562, (0 missing)
##       campaign_duration  < 30.725   to the left,  improve=0.01585315, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  RRLRRLLLRRRR, agree=0.567, adj=0.096, (0 split)
##       description_length < 2839     to the right, agree=0.555, adj=0.071, (0 split)
##       campaign_duration  < 30.005   to the left,  agree=0.549, adj=0.058, (0 split)
##       video_status       < 0.5      to the left,  agree=0.547, adj=0.053, (0 split)
##       reward_length      < 3359.5   to the left,  agree=0.537, adj=0.033, (0 split)
## 
## Node number 35: 979 observations,    complexity param=0.0006627986
##   mean=0.2798774, MSE=0.2015461 
##   left son=70 (169 obs) right son=71 (810 obs)
##   Primary splits:
##       description_length < 804.5    to the left,  improve=0.031114870, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.027180650, (0 missing)
##       category           splits as  R-------L-R-LR-, improve=0.020435590, (0 missing)
##       mo_launched        splits as  LRRLLLRRRLLR, improve=0.012044820, (0 missing)
##       reward_length      < 4162.5   to the left,  improve=0.008527382, (0 missing)
##   Surrogate splits:
##       reward_length < 2972.5   to the left,  agree=0.829, adj=0.012, (0 split)
## 
## Node number 36: 279 observations,    complexity param=0.0001992626
##   mean=0.1039427, MSE=0.09313858 
##   left son=72 (154 obs) right son=73 (125 obs)
##   Primary splits:
##       goal               < 15250    to the right, improve=0.06757575, (0 missing)
##       description_length < 1187     to the left,  improve=0.03049667, (0 missing)
##       category           splits as  ----R-L--------, improve=0.02911881, (0 missing)
##       mo_launched        splits as  LLRLLLLLRRRR, improve=0.02737005, (0 missing)
##       reward_length      < 3004.5   to the left,  improve=0.02429359, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  LLLLLLRLLLRR, agree=0.606, adj=0.120, (0 split)
##       campaign_duration  < 19.505   to the right, agree=0.570, adj=0.040, (0 split)
##       category           splits as  ----R-L--------, agree=0.563, adj=0.024, (0 split)
##       description_length < 361      to the right, agree=0.559, adj=0.016, (0 split)
## 
## Node number 37: 244 observations,    complexity param=0.0004851831
##   mean=0.3647541, MSE=0.2317085 
##   left son=74 (147 obs) right son=75 (97 obs)
##   Primary splits:
##       reward_length      < 3857.5   to the left,  improve=0.08359320, (0 missing)
##       description_length < 687      to the left,  improve=0.05159587, (0 missing)
##       mo_launched        splits as  LRLRLRRLRLRR, improve=0.03141570, (0 missing)
##       social_media_count splits as  RLL-,         improve=0.01838779, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.01357832, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 12.295   to the right, agree=0.619, adj=0.041, (0 split)
##       mo_launched        splits as  LLLLLRRLLLLL, agree=0.615, adj=0.031, (0 split)
##       category           splits as  --R-L-L-------R, agree=0.611, adj=0.021, (0 split)
##       goal               < 8844.5   to the left,  agree=0.611, adj=0.021, (0 split)
##       description_length < 1519     to the left,  agree=0.611, adj=0.021, (0 split)
## 
## Node number 38: 104 observations,    complexity param=0.0008656508
##   mean=0.1730769, MSE=0.1431213 
##   left son=76 (89 obs) right son=77 (15 obs)
##   Primary splits:
##       category           splits as  ----R-L--------, improve=0.56650310, (0 missing)
##       description_length < 4886.5   to the left,  improve=0.15753640, (0 missing)
##       mo_launched        splits as  LRLLRLLLLRRL, improve=0.13590730, (0 missing)
##       goal               < 52500    to the right, improve=0.04890508, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.04678523, (0 missing)
## 
## Node number 39: 475 observations,    complexity param=0.0006573327
##   mean=0.6484211, MSE=0.2279712 
##   left son=78 (389 obs) right son=79 (86 obs)
##   Primary splits:
##       category           splits as  -RR-RRL-------R, improve=0.05913013, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.04005923, (0 missing)
##       description_length < 2895.5   to the left,  improve=0.03073064, (0 missing)
##       goal               < 7550     to the right, improve=0.02378658, (0 missing)
##       reward_length      < 1899.5   to the left,  improve=0.02340709, (0 missing)
## 
## Node number 40: 2412 observations,    complexity param=0.001187301
##   mean=0.2682421, MSE=0.1962883 
##   left son=80 (1421 obs) right son=81 (991 obs)
##   Primary splits:
##       description_length < 4654.5   to the left,  improve=0.02442790, (0 missing)
##       reward_length      < 8242.5   to the left,  improve=0.01763989, (0 missing)
##       goal               < 15888.5  to the right, improve=0.01589369, (0 missing)
##       category           splits as  L-------L---LR-, improve=0.01294524, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.01075849, (0 missing)
##   Surrogate splits:
##       category      splits as  L-------R---LR-, agree=0.662, adj=0.177, (0 split)
##       reward_length < 8992.5   to the left,  agree=0.637, adj=0.117, (0 split)
##       goal          < 49997.5  to the left,  agree=0.623, adj=0.083, (0 split)
##       usa           < 0.5      to the right, agree=0.601, adj=0.028, (0 split)
## 
## Node number 41: 1822 observations,    complexity param=0.001074899
##   mean=0.4429199, MSE=0.2467419 
##   left son=82 (230 obs) right son=83 (1592 obs)
##   Primary splits:
##       video_status       < 0.5      to the left,  improve=0.023290210, (0 missing)
##       reward_length      < 9042.5   to the left,  improve=0.019607880, (0 missing)
##       category           splits as  R-------R---LR-, improve=0.017212860, (0 missing)
##       description_length < 3363.5   to the left,  improve=0.015111600, (0 missing)
##       campaign_duration  < 36.3     to the right, improve=0.007895772, (0 missing)
##   Surrogate splits:
##       description_length < 52.5     to the left,  agree=0.875, adj=0.009, (0 split)
## 
## Node number 42: 699 observations,    complexity param=0.000837258
##   mean=0.4206009, MSE=0.2436958 
##   left son=84 (120 obs) right son=85 (579 obs)
##   Primary splits:
##       description_length < 4732     to the left,  improve=0.04787748, (0 missing)
##       reward_length      < 22304.5  to the left,  improve=0.03295476, (0 missing)
##       category           splits as  L-------L---LR-, improve=0.03269563, (0 missing)
##       goal               < 875000   to the left,  improve=0.01763823, (0 missing)
##       mo_launched        splits as  RLRLLRLRLLLL, improve=0.01454909, (0 missing)
##   Surrogate splits:
##       goal < 26900    to the left,  agree=0.831, adj=0.017, (0 split)
## 
## Node number 43: 1564 observations,    complexity param=0.001129911
##   mean=0.6157289, MSE=0.2366068 
##   left son=86 (866 obs) right son=87 (698 obs)
##   Primary splits:
##       category           splits as  L-------R---LR-, improve=0.029742490, (0 missing)
##       description_length < 4739.5   to the left,  improve=0.026519920, (0 missing)
##       reward_length      < 19370.5  to the left,  improve=0.017237340, (0 missing)
##       campaign_duration  < 29.945   to the right, improve=0.007721516, (0 missing)
##       goal               < 9873.5   to the right, improve=0.005872871, (0 missing)
##   Surrogate splits:
##       description_length < 7100.5   to the left,  agree=0.659, adj=0.236, (0 split)
##       goal               < 14600    to the left,  agree=0.605, adj=0.116, (0 split)
##       usa                < 0.5      to the right, agree=0.573, adj=0.043, (0 split)
##       mo_launched        splits as  LRLLLLLRLLLL, agree=0.561, adj=0.016, (0 split)
##       reward_length      < 11840    to the right, agree=0.556, adj=0.004, (0 split)
## 
## Node number 44: 549 observations,    complexity param=0.0006251146
##   mean=0.1967213, MSE=0.158022 
##   left son=88 (294 obs) right son=89 (255 obs)
##   Primary splits:
##       description_length < 4621     to the left,  improve=0.07018864, (0 missing)
##       reward_length      < 17612    to the left,  improve=0.06870990, (0 missing)
##       mo_launched        splits as  LLLLRRLLLLLL, improve=0.03226709, (0 missing)
##       goal               < 118500   to the right, improve=0.02314036, (0 missing)
##       campaign_duration  < 35.045   to the right, improve=0.01594534, (0 missing)
##   Surrogate splits:
##       reward_length      < 12524.5  to the left,  agree=0.701, adj=0.357, (0 split)
##       mo_launched        splits as  LLLLLLLLRLRL, agree=0.563, adj=0.059, (0 split)
##       social_media_count splits as  LLRL,         agree=0.550, adj=0.031, (0 split)
##       usa                < 0.5      to the right, agree=0.539, adj=0.008, (0 split)
##       campaign_duration  < 90.98    to the left,  agree=0.537, adj=0.004, (0 split)
## 
## Node number 45: 51 observations
##   mean=0.9215686, MSE=0.07227989 
## 
## Node number 46: 2414 observations,    complexity param=0.002850915
##   mean=0.506628, MSE=0.2499561 
##   left son=92 (337 obs) right son=93 (2077 obs)
##   Primary splits:
##       goal               < 19840    to the right, improve=0.04602359, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.02143457, (0 missing)
##       reward_length      < 9629.5   to the left,  improve=0.01847322, (0 missing)
##       campaign_duration  < 41.465   to the right, improve=0.01464383, (0 missing)
##       description_length < 1146     to the left,  improve=0.01359382, (0 missing)
## 
## Node number 47: 6126 observations,    complexity param=0.003938597
##   mean=0.6924584, MSE=0.2129598 
##   left son=94 (5450 obs) right son=95 (676 obs)
##   Primary splits:
##       category           splits as  -RRRRRLR-RLR--R, improve=0.029407910, (0 missing)
##       goal               < 11887.5  to the right, improve=0.015709460, (0 missing)
##       description_length < 4965     to the left,  improve=0.010523890, (0 missing)
##       campaign_duration  < 56.395   to the right, improve=0.008540251, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.006341874, (0 missing)
## 
## Node number 48: 1087 observations,    complexity param=0.000625165
##   mean=0.2769089, MSE=0.2002304 
##   left son=96 (687 obs) right son=97 (400 obs)
##   Primary splits:
##       description_length < 1942     to the left,  improve=0.02797901, (0 missing)
##       goal               < 2365.5   to the right, improve=0.02062540, (0 missing)
##       reward_length      < 2180.5   to the left,  improve=0.01906670, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.01409498, (0 missing)
##       campaign_duration  < 28.595   to the right, improve=0.01122581, (0 missing)
##   Surrogate splits:
##       reward_length < 3234.5   to the left,  agree=0.647, adj=0.040, (0 split)
##       category      splits as  --------R---LL-, agree=0.638, adj=0.017, (0 split)
## 
## Node number 49: 2260 observations,    complexity param=0.002362954
##   mean=0.4513274, MSE=0.247631 
##   left son=98 (1202 obs) right son=99 (1058 obs)
##   Primary splits:
##       description_length < 1258.5   to the left,  improve=0.04235801, (0 missing)
##       reward_length      < 2475.5   to the left,  improve=0.02776034, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.01571980, (0 missing)
##       campaign_duration  < 25.695   to the right, improve=0.01438589, (0 missing)
##       goal               < 1680     to the right, improve=0.01151128, (0 missing)
##   Surrogate splits:
##       category          splits as  R---R-----L----, agree=0.598, adj=0.141, (0 split)
##       reward_length     < 3075.5   to the left,  agree=0.580, adj=0.102, (0 split)
##       campaign_duration < 26.96    to the right, agree=0.546, adj=0.030, (0 split)
##       usa               < 0.5      to the right, agree=0.540, adj=0.018, (0 split)
##       mo_launched       splits as  LLLLRLLRLLLL, agree=0.538, adj=0.013, (0 split)
## 
## Node number 50: 1175 observations,    complexity param=0.000542999
##   mean=0.5591489, MSE=0.2465014 
##   left son=100 (690 obs) right son=101 (485 obs)
##   Primary splits:
##       description_length < 1309.5   to the left,  improve=0.018261610, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.009990834, (0 missing)
##       reward_length      < 2254     to the left,  improve=0.009658530, (0 missing)
##       campaign_duration  < 47.125   to the right, improve=0.008749891, (0 missing)
##       goal               < 699.5    to the right, improve=0.006228342, (0 missing)
##   Surrogate splits:
##       reward_length     < 3090.5   to the left,  agree=0.611, adj=0.058, (0 split)
##       category          splits as  L---R---R-L-LR-, agree=0.603, adj=0.037, (0 split)
##       goal              < 822.5    to the left,  agree=0.591, adj=0.010, (0 split)
##       usa               < 0.5      to the right, agree=0.591, adj=0.008, (0 split)
##       campaign_duration < 89.005   to the left,  agree=0.589, adj=0.004, (0 split)
## 
## Node number 51: 515 observations,    complexity param=0.0002175095
##   mean=0.6990291, MSE=0.2103874 
##   left son=102 (298 obs) right son=103 (217 obs)
##   Primary splits:
##       mo_launched        splits as  LRRLRLRLLRLL, improve=0.01955457, (0 missing)
##       description_length < 862.5    to the left,  improve=0.01862238, (0 missing)
##       campaign_duration  < 20.425   to the left,  improve=0.01274343, (0 missing)
##       reward_length      < 707      to the left,  improve=0.01267815, (0 missing)
##       usa                < 0.5      to the left,  improve=0.01100284, (0 missing)
##   Surrogate splits:
##       goal               < 762.5    to the left,  agree=0.594, adj=0.037, (0 split)
##       campaign_duration  < 3.65     to the right, agree=0.584, adj=0.014, (0 split)
##       social_media_count splits as  LLLR,         agree=0.584, adj=0.014, (0 split)
##       description_length < 3550.5   to the left,  agree=0.583, adj=0.009, (0 split)
## 
## Node number 52: 467 observations,    complexity param=0.0003145891
##   mean=0.6381156, MSE=0.2309241 
##   left son=104 (130 obs) right son=105 (337 obs)
##   Primary splits:
##       reward_length      < 2569.5   to the left,  improve=0.02841547, (0 missing)
##       description_length < 3951     to the left,  improve=0.02274251, (0 missing)
##       goal               < 3275     to the right, improve=0.01759420, (0 missing)
##       campaign_duration  < 34.995   to the left,  improve=0.01433163, (0 missing)
##       mo_launched        splits as  RRLRLLRLRRRR, improve=0.01132150, (0 missing)
##   Surrogate splits:
##       social_media_count splits as  RRLL, agree=0.726, adj=0.015, (0 split)
##       campaign_duration  < 89.935   to the right, agree=0.724, adj=0.008, (0 split)
##       category           splits as  -R---RR--R----L, agree=0.724, adj=0.008, (0 split)
## 
## Node number 53: 429 observations,    complexity param=0.000368374
##   mean=0.7808858, MSE=0.1711032 
##   left son=106 (53 obs) right son=107 (376 obs)
##   Primary splits:
##       campaign_duration  < 59.98    to the right, improve=0.044999400, (0 missing)
##       mo_launched        splits as  LRRLLRLRLLLR, improve=0.027654800, (0 missing)
##       social_media_count splits as  RRLL,         improve=0.012996050, (0 missing)
##       goal               < 490      to the right, improve=0.011118730, (0 missing)
##       reward_length      < 755      to the left,  improve=0.008524845, (0 missing)
##   Surrogate splits:
##       category      splits as  -RR--RR-------L, agree=0.879, adj=0.019, (0 split)
##       reward_length < 609.5    to the left,  agree=0.879, adj=0.019, (0 split)
## 
## Node number 54: 36 observations,    complexity param=0.0002504948
##   mean=0.6388889, MSE=0.2307099 
##   left son=108 (19 obs) right son=109 (17 obs)
##   Primary splits:
##       mo_launched        splits as  RRRLRRL-LLLL, improve=0.35438040, (0 missing)
##       goal               < 1500     to the right, improve=0.13489410, (0 missing)
##       description_length < 455.5    to the right, improve=0.13050070, (0 missing)
##       reward_length      < 3044.5   to the left,  improve=0.09030100, (0 missing)
##       campaign_duration  < 20.02    to the left,  improve=0.01567997, (0 missing)
##   Surrogate splits:
##       description_length < 455.5    to the right, agree=0.667, adj=0.294, (0 split)
##       campaign_duration  < 21.585   to the left,  agree=0.639, adj=0.235, (0 split)
##       goal               < 442.5    to the right, agree=0.611, adj=0.176, (0 split)
##       reward_length      < 2031     to the left,  agree=0.611, adj=0.176, (0 split)
## 
## Node number 55: 411 observations,    complexity param=0.0001275362
##   mean=0.8807786, MSE=0.1050077 
##   left son=110 (116 obs) right son=111 (295 obs)
##   Primary splits:
##       mo_launched        splits as  RRRRRLLLRRRR, improve=0.028785110, (0 missing)
##       description_length < 1040     to the left,  improve=0.017249510, (0 missing)
##       reward_length      < 2238.5   to the left,  improve=0.011915190, (0 missing)
##       campaign_duration  < 20.375   to the left,  improve=0.011898630, (0 missing)
##       usa                < 0.5      to the left,  improve=0.007964994, (0 missing)
##   Surrogate splits:
##       social_media_count splits as  RRLL,         agree=0.723, adj=0.017, (0 split)
##       reward_length      < 623.5    to the left,  agree=0.723, adj=0.017, (0 split)
##       goal               < 3650     to the right, agree=0.720, adj=0.009, (0 split)
## 
## Node number 56: 1214 observations,    complexity param=0.0009231166
##   mean=0.4802306, MSE=0.2496092 
##   left son=112 (293 obs) right son=113 (921 obs)
##   Primary splits:
##       video_status       < 0.5      to the left,  improve=0.029673890, (0 missing)
##       category           splits as  R-------L---L--, improve=0.016286460, (0 missing)
##       reward_length      < 8187.5   to the left,  improve=0.013556770, (0 missing)
##       campaign_duration  < 55.13    to the right, improve=0.009162697, (0 missing)
##       description_length < 504.5    to the left,  improve=0.008275094, (0 missing)
##   Surrogate splits:
##       goal < 1088.65  to the left,  agree=0.76, adj=0.007, (0 split)
## 
## Node number 57: 643 observations,    complexity param=0.0007084594
##   mean=0.6407465, MSE=0.2301904 
##   left son=114 (400 obs) right son=115 (243 obs)
##   Primary splits:
##       campaign_duration  < 29.995   to the right, improve=0.046624470, (0 missing)
##       goal               < 404      to the right, improve=0.018936120, (0 missing)
##       description_length < 807.5    to the left,  improve=0.016225230, (0 missing)
##       mo_launched        splits as  LRLLLLLLLRLL, improve=0.014797110, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.009152768, (0 missing)
##   Surrogate splits:
##       goal               < 187.5    to the right, agree=0.652, adj=0.078, (0 split)
##       mo_launched        splits as  LRLLLLLLLLLL, agree=0.625, adj=0.008, (0 split)
##       description_length < 393      to the right, agree=0.624, adj=0.004, (0 split)
##       reward_length      < 24083    to the left,  agree=0.624, adj=0.004, (0 split)
## 
## Node number 58: 1040 observations,    complexity param=0.0004963815
##   mean=0.5980769, MSE=0.2403809 
##   left son=116 (672 obs) right son=117 (368 obs)
##   Primary splits:
##       category           splits as  R-------L---L--, improve=0.01934102, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.01750730, (0 missing)
##       goal               < 985      to the right, improve=0.01675999, (0 missing)
##       description_length < 7382.5   to the right, improve=0.01363925, (0 missing)
##       mo_launched        splits as  RRRRRRLRLRRL, improve=0.01266329, (0 missing)
##   Surrogate splits:
##       goal              < 4190.5   to the left,  agree=0.649, adj=0.008, (0 split)
##       reward_length     < 6233     to the left,  agree=0.648, adj=0.005, (0 split)
##       campaign_duration < 3.32     to the right, agree=0.647, adj=0.003, (0 split)
## 
## Node number 59: 2074 observations,    complexity param=0.000585071
##   mean=0.716972, MSE=0.2029231 
##   left son=118 (1717 obs) right son=119 (357 obs)
##   Primary splits:
##       description_length < 6814     to the left,  improve=0.013541460, (0 missing)
##       reward_length      < 10683    to the left,  improve=0.009490387, (0 missing)
##       goal               < 646      to the right, improve=0.007251712, (0 missing)
##       campaign_duration  < 14.885   to the right, improve=0.005846055, (0 missing)
##       category           splits as  L-------R---L--, improve=0.003526468, (0 missing)
##   Surrogate splits:
##       reward_length < 30770.5  to the left,  agree=0.832, adj=0.025, (0 split)
## 
## Node number 60: 924 observations,    complexity param=0.0003417093
##   mean=0.5909091, MSE=0.2417355 
##   left son=120 (557 obs) right son=121 (367 obs)
##   Primary splits:
##       reward_length      < 6584     to the left,  improve=0.014901900, (0 missing)
##       description_length < 554.5    to the left,  improve=0.014394960, (0 missing)
##       goal               < 2306.5   to the right, improve=0.010132960, (0 missing)
##       mo_launched        splits as  RLRLLLLLLRRR, improve=0.004651308, (0 missing)
##       social_media_count splits as  LRLL,         improve=0.002964156, (0 missing)
##   Surrogate splits:
##       description_length < 2953.5   to the left,  agree=0.630, adj=0.068, (0 split)
##       usa                < 0.5      to the right, agree=0.610, adj=0.019, (0 split)
##       goal               < 3675     to the left,  agree=0.607, adj=0.011, (0 split)
## 
## Node number 61: 280 observations,    complexity param=0.0003003767
##   mean=0.7392857, MSE=0.1927423 
##   left son=122 (195 obs) right son=123 (85 obs)
##   Primary splits:
##       campaign_duration  < 29.725   to the right, improve=0.05421610, (0 missing)
##       goal               < 795      to the right, improve=0.03520890, (0 missing)
##       mo_launched        splits as  RRRLLLRLLRLL, improve=0.02896994, (0 missing)
##       reward_length      < 4111.5   to the left,  improve=0.02025015, (0 missing)
##       description_length < 1153.5   to the left,  improve=0.01344014, (0 missing)
##   Surrogate splits:
##       goal     < 275      to the right, agree=0.711, adj=0.047, (0 split)
##       category splits as  -LL--LLL---R---, agree=0.700, adj=0.012, (0 split)
## 
## Node number 62: 1546 observations,    complexity param=0.0006644816
##   mean=0.6972833, MSE=0.2110793 
##   left son=124 (442 obs) right son=125 (1104 obs)
##   Primary splits:
##       campaign_duration < 35.005   to the right, improve=0.019834670, (0 missing)
##       goal              < 1562.5   to the right, improve=0.009958955, (0 missing)
##       mo_launched       splits as  RLRRLLLLRRLL, improve=0.007708396, (0 missing)
##       reward_length     < 11976.5  to the left,  improve=0.007418990, (0 missing)
##       category          splits as  ----LRR---L--R-, improve=0.004180612, (0 missing)
##   Surrogate splits:
##       reward_length < 19321    to the right, agree=0.715, adj=0.005, (0 split)
##       goal          < 4019     to the right, agree=0.715, adj=0.002, (0 split)
## 
## Node number 63: 5521 observations,    complexity param=0.0008142635
##   mean=0.8076435, MSE=0.1553555 
##   left son=126 (4070 obs) right son=127 (1451 obs)
##   Primary splits:
##       campaign_duration  < 29.895   to the right, improve=0.009247363, (0 missing)
##       reward_length      < 9063.5   to the left,  improve=0.005173882, (0 missing)
##       goal               < 669      to the right, improve=0.004967171, (0 missing)
##       description_length < 4646.5   to the left,  improve=0.004295418, (0 missing)
##       mo_launched        splits as  RRRLLLLLLLLL, improve=0.003483263, (0 missing)
## 
## Node number 66: 527 observations,    complexity param=0.0001073544
##   mean=0.06641366, MSE=0.06200289 
##   left son=132 (236 obs) right son=133 (291 obs)
##   Primary splits:
##       goal               < 8894     to the right, improve=0.03200328, (0 missing)
##       mo_launched        splits as  LLLRRRLLRLLL, improve=0.01317491, (0 missing)
##       reward_length      < 2460.5   to the left,  improve=0.01257840, (0 missing)
##       description_length < 1372     to the right, improve=0.01221213, (0 missing)
##       campaign_duration  < 24.475   to the right, improve=0.00723397, (0 missing)
##   Surrogate splits:
##       category           splits as  R-------L-R-RL-, agree=0.577, adj=0.055, (0 split)
##       mo_launched        splits as  RRRRRRRRRLRR, agree=0.571, adj=0.042, (0 split)
##       description_length < 1315.5   to the right, agree=0.565, adj=0.030, (0 split)
##       reward_length      < 676.5    to the left,  agree=0.564, adj=0.025, (0 split)
##       usa                < 0.5      to the left,  agree=0.556, adj=0.008, (0 split)
## 
## Node number 67: 231 observations,    complexity param=0.000130482
##   mean=0.1731602, MSE=0.1431757 
##   left son=134 (82 obs) right son=135 (149 obs)
##   Primary splits:
##       mo_launched        splits as  LLRRRLRLRRRL, improve=0.03842965, (0 missing)
##       campaign_duration  < 28.04    to the right, improve=0.03406566, (0 missing)
##       category           splits as  R-------R-R-LL-, improve=0.02864952, (0 missing)
##       goal               < 51500    to the right, improve=0.01454334, (0 missing)
##       description_length < 6216     to the left,  improve=0.01329172, (0 missing)
##   Surrogate splits:
##       description_length < 9044.5   to the right, agree=0.658, adj=0.037, (0 split)
##       reward_length      < 2911.5   to the right, agree=0.654, adj=0.024, (0 split)
##       goal               < 4448.5   to the left,  agree=0.649, adj=0.012, (0 split)
## 
## Node number 68: 396 observations
##   mean=0.07575758, MSE=0.07001837 
## 
## Node number 69: 431 observations,    complexity param=0.0002778713
##   mean=0.1809745, MSE=0.1482227 
##   left son=138 (246 obs) right son=139 (185 obs)
##   Primary splits:
##       goal               < 13650    to the right, improve=0.04550224, (0 missing)
##       description_length < 1070     to the left,  improve=0.02788326, (0 missing)
##       reward_length      < 3688.5   to the left,  improve=0.02766217, (0 missing)
##       campaign_duration  < 30.69    to the left,  improve=0.02062214, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.01470918, (0 missing)
##   Surrogate splits:
##       category           splits as  L---------R--L-, agree=0.603, adj=0.076, (0 split)
##       social_media_count splits as  LRRL, agree=0.592, adj=0.049, (0 split)
##       mo_launched        splits as  LLLLLRLLLLLL, agree=0.585, adj=0.032, (0 split)
##       reward_length      < 4272.5   to the left,  agree=0.582, adj=0.027, (0 split)
##       description_length < 538.5    to the right, agree=0.575, adj=0.011, (0 split)
## 
## Node number 70: 169 observations,    complexity param=0.0001055651
##   mean=0.1065089, MSE=0.09516474 
##   left son=140 (59 obs) right son=141 (110 obs)
##   Primary splits:
##       mo_launched        splits as  RRRRRRRRLLLL, improve=0.063937390, (0 missing)
##       description_length < 189      to the right, improve=0.030480530, (0 missing)
##       reward_length      < 4725     to the left,  improve=0.024742800, (0 missing)
##       campaign_duration  < 59.98    to the right, improve=0.010458350, (0 missing)
##       goal               < 7087     to the right, improve=0.009643107, (0 missing)
##   Surrogate splits:
##       reward_length      < 3168     to the left,  agree=0.680, adj=0.085, (0 split)
##       campaign_duration  < 60.02    to the right, agree=0.675, adj=0.068, (0 split)
##       category           splits as  R-------R-R-RL-, agree=0.675, adj=0.068, (0 split)
##       description_length < 707.5    to the right, agree=0.663, adj=0.034, (0 split)
##       goal               < 4925     to the left,  agree=0.657, adj=0.017, (0 split)
## 
## Node number 71: 810 observations,    complexity param=0.0006627986
##   mean=0.3160494, MSE=0.2161622 
##   left son=142 (337 obs) right son=143 (473 obs)
##   Primary splits:
##       category           splits as  R-------L-R-LR-, improve=0.038683040, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.029302250, (0 missing)
##       mo_launched        splits as  LRRLLLRRRLLR, improve=0.016452030, (0 missing)
##       description_length < 2141.5   to the left,  improve=0.011426830, (0 missing)
##       reward_length      < 4178.5   to the left,  improve=0.009739238, (0 missing)
##   Surrogate splits:
##       description_length < 3418.5   to the right, agree=0.644, adj=0.145, (0 split)
##       video_status       < 0.5      to the left,  agree=0.602, adj=0.045, (0 split)
##       reward_length      < 4739.5   to the right, agree=0.598, adj=0.033, (0 split)
##       usa                < 0.5      to the left,  agree=0.596, adj=0.030, (0 split)
##       goal               < 8066.5   to the right, agree=0.588, adj=0.009, (0 split)
## 
## Node number 72: 154 observations
##   mean=0.03246753, MSE=0.03141339 
## 
## Node number 73: 125 observations,    complexity param=0.0001992626
##   mean=0.192, MSE=0.155136 
##   left son=146 (82 obs) right son=147 (43 obs)
##   Primary splits:
##       mo_launched        splits as  LLRLLLLLRRRL, improve=0.10963160, (0 missing)
##       description_length < 859.5    to the left,  improve=0.03922104, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.02475739, (0 missing)
##       reward_length      < 4517     to the right, improve=0.02066294, (0 missing)
##       campaign_duration  < 59.03    to the right, improve=0.01927661, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 77.045   to the left,  agree=0.696, adj=0.116, (0 split)
##       description_length < 101.5    to the right, agree=0.672, adj=0.047, (0 split)
##       category           splits as  ----R-L--------, agree=0.664, adj=0.023, (0 split)
## 
## Node number 74: 147 observations,    complexity param=0.0002089609
##   mean=0.2517007, MSE=0.1883474 
##   left son=148 (78 obs) right son=149 (69 obs)
##   Primary splits:
##       mo_launched        splits as  LRLRLRRLRLRR, improve=0.07351655, (0 missing)
##       description_length < 684.5    to the left,  improve=0.06901720, (0 missing)
##       campaign_duration  < 46.265   to the left,  improve=0.03547912, (0 missing)
##       social_media_count splits as  RLR-,         improve=0.02850218, (0 missing)
##       goal               < 4749.5   to the right, improve=0.02713759, (0 missing)
##   Surrogate splits:
##       goal               < 5750     to the right, agree=0.592, adj=0.130, (0 split)
##       description_length < 1548     to the left,  agree=0.592, adj=0.130, (0 split)
##       reward_length      < 2485.5   to the left,  agree=0.571, adj=0.087, (0 split)
##       social_media_count splits as  LLR-,         agree=0.558, adj=0.058, (0 split)
##       campaign_duration  < 37.315   to the right, agree=0.551, adj=0.043, (0 split)
## 
## Node number 75: 97 observations,    complexity param=0.0002051527
##   mean=0.5360825, MSE=0.2486981 
##   left son=150 (34 obs) right son=151 (63 obs)
##   Primary splits:
##       reward_length      < 4473     to the right, improve=0.07278444, (0 missing)
##       mo_launched        splits as  RRLRLRLRLRLL, improve=0.03721628, (0 missing)
##       description_length < 767      to the left,  improve=0.03378152, (0 missing)
##       social_media_count splits as  RLL-,         improve=0.02865887, (0 missing)
##       campaign_duration  < 46.76    to the right, improve=0.01885123, (0 missing)
##   Surrogate splits:
##       campaign_duration < 17.825   to the left,  agree=0.691, adj=0.118, (0 split)
##       goal              < 8250     to the right, agree=0.680, adj=0.088, (0 split)
##       mo_launched       splits as  RRRRLRRRRRRR, agree=0.660, adj=0.029, (0 split)
## 
## Node number 76: 89 observations
##   mean=0.05617978, MSE=0.05302361 
## 
## Node number 77: 15 observations
##   mean=0.8666667, MSE=0.1155556 
## 
## Node number 78: 389 observations,    complexity param=0.0005498284
##   mean=0.5938303, MSE=0.2411959 
##   left son=156 (166 obs) right son=157 (223 obs)
##   Primary splits:
##       goal               < 7550     to the right, improve=0.05708274, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.02840724, (0 missing)
##       reward_length      < 4415.5   to the left,  improve=0.02729837, (0 missing)
##       usa                < 0.5      to the left,  improve=0.02288117, (0 missing)
##       description_length < 1954.5   to the left,  improve=0.01758578, (0 missing)
##   Surrogate splits:
##       description_length < 7073     to the right, agree=0.586, adj=0.030, (0 split)
##       reward_length      < 4671.5   to the right, agree=0.578, adj=0.012, (0 split)
##       usa                < 0.5      to the left,  agree=0.576, adj=0.006, (0 split)
##       social_media_count splits as  RRRL,         agree=0.576, adj=0.006, (0 split)
## 
## Node number 79: 86 observations,    complexity param=0.0001232329
##   mean=0.8953488, MSE=0.0936993 
##   left son=158 (13 obs) right son=159 (73 obs)
##   Primary splits:
##       description_length < 2015     to the left,  improve=0.14896670, (0 missing)
##       campaign_duration  < 28.81    to the left,  improve=0.09922266, (0 missing)
##       mo_launched        splits as  RLRRLLLRRLRR, improve=0.07070707, (0 missing)
##       social_media_count splits as  LRR-,         improve=0.04267161, (0 missing)
##       goal               < 9750     to the left,  improve=0.04246022, (0 missing)
##   Surrogate splits:
##       social_media_count splits as  RRL-, agree=0.86, adj=0.077, (0 split)
##       category           splits as  -RR-RR--------L, agree=0.86, adj=0.077, (0 split)
## 
## Node number 80: 1421 observations,    complexity param=0.0009317064
##   mean=0.2104152, MSE=0.1661406 
##   left son=160 (275 obs) right son=161 (1146 obs)
##   Primary splits:
##       goal               < 32200    to the right, improve=0.038442030, (0 missing)
##       description_length < 1856     to the left,  improve=0.020063510, (0 missing)
##       reward_length      < 7199.5   to the left,  improve=0.011365760, (0 missing)
##       mo_launched        splits as  LLRRLRRLRLLL, improve=0.010820950, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.005270589, (0 missing)
## 
## Node number 81: 991 observations,    complexity param=0.0004474458
##   mean=0.3511604, MSE=0.2278468 
##   left son=162 (695 obs) right son=163 (296 obs)
##   Primary splits:
##       category      splits as  L-------L---LR-, improve=0.01927337, (0 missing)
##       goal          < 153500   to the right, improve=0.01827882, (0 missing)
##       reward_length < 5989.5   to the left,  improve=0.01761627, (0 missing)
##       video_status  < 0.5      to the left,  improve=0.01342093, (0 missing)
##       mo_launched   splits as  RRLRRLRRLRLR, improve=0.01316800, (0 missing)
##   Surrogate splits:
##       reward_length < 5002     to the right, agree=0.709, adj=0.027, (0 split)
##       goal          < 76765    to the left,  agree=0.707, adj=0.020, (0 split)
## 
## Node number 82: 230 observations,    complexity param=0.0003699419
##   mean=0.2434783, MSE=0.1841966 
##   left son=164 (200 obs) right son=165 (30 obs)
##   Primary splits:
##       campaign_duration  < 28.31    to the right, improve=0.08505918, (0 missing)
##       reward_length      < 8951.5   to the left,  improve=0.08041899, (0 missing)
##       category           splits as  L-------R---LL-, improve=0.06244298, (0 missing)
##       description_length < 5056     to the left,  improve=0.05298263, (0 missing)
##       mo_launched        splits as  RLLRRLLRLRRL, improve=0.02142422, (0 missing)
##   Surrogate splits:
##       description_length < 11502    to the left,  agree=0.878, adj=0.067, (0 split)
## 
## Node number 83: 1592 observations,    complexity param=0.0005989149
##   mean=0.4717337, MSE=0.249201 
##   left son=166 (1191 obs) right son=167 (401 obs)
##   Primary splits:
##       reward_length      < 9097     to the left,  improve=0.014705150, (0 missing)
##       category           splits as  R-------R---LR-, improve=0.011661840, (0 missing)
##       description_length < 3094     to the left,  improve=0.011088920, (0 missing)
##       mo_launched        splits as  LRRRRLLLRLLL, improve=0.008765471, (0 missing)
##       campaign_duration  < 36.495   to the right, improve=0.005829387, (0 missing)
##   Surrogate splits:
##       description_length < 13959.5  to the left,  agree=0.751, adj=0.010, (0 split)
##       goal               < 4386     to the right, agree=0.749, adj=0.005, (0 split)
## 
## Node number 84: 120 observations,    complexity param=0.0001221771
##   mean=0.1833333, MSE=0.1497222 
##   left son=168 (42 obs) right son=169 (78 obs)
##   Primary splits:
##       goal               < 51668.5  to the right, improve=0.06623988, (0 missing)
##       category           splits as  L-------L---LR-, improve=0.06088716, (0 missing)
##       mo_launched        splits as  RRRLLRRLRRRL, improve=0.05932849, (0 missing)
##       description_length < 4238.5   to the left,  improve=0.02319234, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.02040816, (0 missing)
##   Surrogate splits:
##       reward_length      < 30592    to the right, agree=0.700, adj=0.143, (0 split)
##       description_length < 714      to the left,  agree=0.683, adj=0.095, (0 split)
##       campaign_duration  < 21.435   to the left,  agree=0.658, adj=0.024, (0 split)
##       social_media_count splits as  RRL-,         agree=0.658, adj=0.024, (0 split)
##       mo_launched        splits as  RRRLRRRRRRRR, agree=0.658, adj=0.024, (0 split)
## 
## Node number 85: 579 observations,    complexity param=0.0004805768
##   mean=0.4697755, MSE=0.2490865 
##   left son=170 (429 obs) right son=171 (150 obs)
##   Primary splits:
##       reward_length      < 22304.5  to the left,  improve=0.03167856, (0 missing)
##       category           splits as  L-------L---LR-, improve=0.02388440, (0 missing)
##       mo_launched        splits as  RLRLLRLRRLLL, improve=0.02354076, (0 missing)
##       description_length < 11836.5  to the left,  improve=0.01699779, (0 missing)
##       goal               < 875000   to the left,  improve=0.01696882, (0 missing)
##   Surrogate splits:
##       goal               < 875000   to the left,  agree=0.751, adj=0.040, (0 split)
##       description_length < 16403.5  to the left,  agree=0.748, adj=0.027, (0 split)
## 
## Node number 86: 866 observations,    complexity param=0.0004470318
##   mean=0.5404157, MSE=0.2483666 
##   left son=172 (438 obs) right son=173 (428 obs)
##   Primary splits:
##       description_length < 4739.5   to the left,  improve=0.020245310, (0 missing)
##       campaign_duration  < 29.07    to the right, improve=0.018876170, (0 missing)
##       reward_length      < 21465    to the left,  improve=0.018445870, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.011213150, (0 missing)
##       goal               < 7350     to the right, improve=0.007305328, (0 missing)
##   Surrogate splits:
##       reward_length     < 15868    to the left,  agree=0.620, adj=0.231, (0 split)
##       category          splits as  L-----------R--, agree=0.574, adj=0.138, (0 split)
##       goal              < 8019     to the left,  agree=0.558, adj=0.105, (0 split)
##       mo_launched       splits as  RLLLRRRRLLLL, agree=0.550, adj=0.089, (0 split)
##       campaign_duration < 35.505   to the right, agree=0.543, adj=0.075, (0 split)
## 
## Node number 87: 698 observations,    complexity param=0.0003799772
##   mean=0.7091691, MSE=0.2062483 
##   left son=174 (468 obs) right son=175 (230 obs)
##   Primary splits:
##       reward_length      < 17522    to the left,  improve=0.02571040, (0 missing)
##       description_length < 14457    to the left,  improve=0.02567132, (0 missing)
##       goal               < 9900     to the right, improve=0.02472722, (0 missing)
##       social_media_count splits as  LRLR,         improve=0.02157161, (0 missing)
##       usa                < 0.5      to the left,  improve=0.01660311, (0 missing)
##   Surrogate splits:
##       description_length < 21714    to the left,  agree=0.691, adj=0.061, (0 split)
##       goal               < 25250    to the left,  agree=0.673, adj=0.009, (0 split)
##       social_media_count splits as  LLLR,         agree=0.672, adj=0.004, (0 split)
## 
## Node number 88: 294 observations,    complexity param=0.0002015004
##   mean=0.09863946, MSE=0.08890971 
##   left son=176 (211 obs) right son=177 (83 obs)
##   Primary splits:
##       reward_length      < 13016.5  to the left,  improve=0.07508905, (0 missing)
##       mo_launched        splits as  LRLLRRLLRRLR, improve=0.03413772, (0 missing)
##       description_length < 1519.5   to the left,  improve=0.02107354, (0 missing)
##       campaign_duration  < 29.98    to the right, improve=0.01981809, (0 missing)
##       goal               < 167500   to the right, improve=0.01884412, (0 missing)
##   Surrogate splits:
##       description_length < 3        to the right, agree=0.728, adj=0.036, (0 split)
##       goal               < 54750    to the right, agree=0.721, adj=0.012, (0 split)
## 
## Node number 89: 255 observations,    complexity param=0.0002802887
##   mean=0.3098039, MSE=0.2138255 
##   left son=178 (210 obs) right son=179 (45 obs)
##   Primary splits:
##       mo_launched        splits as  LLLLRRLLLLLL, improve=0.05007295, (0 missing)
##       reward_length      < 27620    to the left,  improve=0.04890090, (0 missing)
##       goal               < 118500   to the right, improve=0.03380984, (0 missing)
##       description_length < 12078.5  to the right, improve=0.02937208, (0 missing)
##       campaign_duration  < 35.015   to the right, improve=0.02316734, (0 missing)
##   Surrogate splits:
##       description_length < 4652     to the right, agree=0.835, adj=0.067, (0 split)
##       campaign_duration  < 16.62    to the right, agree=0.831, adj=0.044, (0 split)
##       goal               < 1062500  to the left,  agree=0.831, adj=0.044, (0 split)
##       social_media_count splits as  LLLR,         agree=0.827, adj=0.022, (0 split)
## 
## Node number 92: 337 observations,    complexity param=0.000469814
##   mean=0.2403561, MSE=0.182585 
##   left son=184 (303 obs) right son=185 (34 obs)
##   Primary splits:
##       reward_length     < 15809    to the left,  improve=0.07437518, (0 missing)
##       category          splits as  ----RRL---L----, improve=0.04419662, (0 missing)
##       campaign_duration < 34.435   to the right, improve=0.03782742, (0 missing)
##       mo_launched       splits as  RLRLLRLLRRLL, improve=0.03532591, (0 missing)
##       video_status      < 0.5      to the left,  improve=0.01416234, (0 missing)
## 
## Node number 93: 2077 observations,    complexity param=0.001270008
##   mean=0.5498315, MSE=0.2475168 
##   left son=186 (178 obs) right son=187 (1899 obs)
##   Primary splits:
##       video_status       < 0.5      to the left,  improve=0.02406371, (0 missing)
##       reward_length      < 9629.5   to the left,  improve=0.01998534, (0 missing)
##       description_length < 1139.5   to the left,  improve=0.01548888, (0 missing)
##       goal               < 6065.95  to the right, improve=0.01343082, (0 missing)
##       campaign_duration  < 41.465   to the right, improve=0.01075415, (0 missing)
##   Surrogate splits:
##       photo_key < 0.5      to the left,  agree=0.916, adj=0.022, (0 split)
## 
## Node number 94: 5450 observations,    complexity param=0.003129099
##   mean=0.6645872, MSE=0.2229111 
##   left son=188 (1974 obs) right son=189 (3476 obs)
##   Primary splits:
##       goal               < 12000.5  to the right, improve=0.025089290, (0 missing)
##       campaign_duration  < 39.93    to the right, improve=0.007184156, (0 missing)
##       description_length < 5348     to the left,  improve=0.006471761, (0 missing)
##       reward_length      < 18276    to the left,  improve=0.005317783, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.004638574, (0 missing)
##   Surrogate splits:
##       description_length < 8048     to the right, agree=0.658, adj=0.055, (0 split)
##       reward_length      < 18040.5  to the right, agree=0.654, adj=0.046, (0 split)
##       campaign_duration  < 90.98    to the right, agree=0.638, adj=0.001, (0 split)
## 
## Node number 95: 676 observations,    complexity param=0.000304143
##   mean=0.9171598, MSE=0.07597773 
##   left son=190 (27 obs) right son=191 (649 obs)
##   Primary splits:
##       video_status       < 0.5      to the left,  improve=0.05768221, (0 missing)
##       description_length < 2225.5   to the left,  improve=0.04680029, (0 missing)
##       goal               < 20500    to the left,  improve=0.01793190, (0 missing)
##       category           splits as  -RRRLR-R-R-R--R, improve=0.01679683, (0 missing)
##       campaign_duration  < 57.53    to the right, improve=0.01101932, (0 missing)
## 
## Node number 96: 687 observations,    complexity param=0.0002289818
##   mean=0.2197962, MSE=0.1714858 
##   left son=192 (59 obs) right son=193 (628 obs)
##   Primary splits:
##       goal              < 3550     to the right, improve=0.018932720, (0 missing)
##       reward_length     < 2574.5   to the left,  improve=0.016371630, (0 missing)
##       mo_launched       splits as  LLRLLRLRRLLL, improve=0.015197880, (0 missing)
##       campaign_duration < 11.98    to the right, improve=0.009524292, (0 missing)
##       video_status      < 0.5      to the left,  improve=0.007290873, (0 missing)
## 
## Node number 97: 400 observations,    complexity param=0.0003232258
##   mean=0.375, MSE=0.234375 
##   left son=194 (266 obs) right son=195 (134 obs)
##   Primary splits:
##       goal              < 1674.5   to the right, improve=0.03358396, (0 missing)
##       campaign_duration < 22.88    to the right, improve=0.02337585, (0 missing)
##       video_status      < 0.5      to the left,  improve=0.01891138, (0 missing)
##       reward_length     < 1974     to the left,  improve=0.01326260, (0 missing)
##       category          splits as  --------R---LR-, improve=0.01225851, (0 missing)
##   Surrogate splits:
##       campaign_duration < 60.02    to the left,  agree=0.672, adj=0.022, (0 split)
## 
## Node number 98: 1202 observations,    complexity param=0.0007257683
##   mean=0.3552413, MSE=0.2290449 
##   left son=196 (639 obs) right son=197 (563 obs)
##   Primary splits:
##       goal               < 1837.39  to the right, improve=0.02567852, (0 missing)
##       reward_length      < 2768.5   to the left,  improve=0.02558962, (0 missing)
##       description_length < 592.5    to the left,  improve=0.02459479, (0 missing)
##       campaign_duration  < 23.445   to the right, improve=0.01931950, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.01918996, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 29.965   to the right, agree=0.559, adj=0.059, (0 split)
##       mo_launched        splits as  LRLLRLLLLRLL, agree=0.550, adj=0.039, (0 split)
##       social_media_count splits as  LRLL,         agree=0.539, adj=0.016, (0 split)
##       reward_length      < 3946     to the left,  agree=0.538, adj=0.014, (0 split)
##       description_length < 163      to the right, agree=0.534, adj=0.005, (0 split)
## 
## Node number 99: 1058 observations,    complexity param=0.0005422279
##   mean=0.5604915, MSE=0.2463408 
##   left son=198 (350 obs) right son=199 (708 obs)
##   Primary splits:
##       reward_length      < 2569     to the left,  improve=0.020265490, (0 missing)
##       description_length < 2329.5   to the left,  improve=0.015492520, (0 missing)
##       campaign_duration  < 59.91    to the right, improve=0.012662740, (0 missing)
##       mo_launched        splits as  LLRRLLLLLLLR, improve=0.007892942, (0 missing)
##       social_media_count splits as  RRRL,         improve=0.007223030, (0 missing)
##   Surrogate splits:
##       campaign_duration < 10.38    to the left,  agree=0.674, adj=0.014, (0 split)
## 
## Node number 100: 690 observations,    complexity param=0.0002390247
##   mean=0.5028986, MSE=0.2499916 
##   left son=200 (300 obs) right son=201 (390 obs)
##   Primary splits:
##       reward_length      < 2255     to the left,  improve=0.013497880, (0 missing)
##       campaign_duration  < 59.94    to the right, improve=0.009498505, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.009209872, (0 missing)
##       social_media_count splits as  LRRR,         improve=0.008431447, (0 missing)
##       goal               < 610      to the right, improve=0.007896774, (0 missing)
##   Surrogate splits:
##       description_length < 386      to the left,  agree=0.596, adj=0.070, (0 split)
##       mo_launched        splits as  LRRLRRLRRRRR, agree=0.584, adj=0.043, (0 split)
##       category           splits as  R---R---L-R-RL-, agree=0.580, adj=0.033, (0 split)
##       goal               < 110.5    to the left,  agree=0.575, adj=0.023, (0 split)
##       campaign_duration  < 25.915   to the left,  agree=0.568, adj=0.007, (0 split)
## 
## Node number 101: 485 observations,    complexity param=0.000229978
##   mean=0.6391753, MSE=0.2306302 
##   left son=202 (162 obs) right son=203 (323 obs)
##   Primary splits:
##       category           splits as  R---R---R-R-LL-, improve=0.020027440, (0 missing)
##       reward_length      < 3700     to the right, improve=0.013452390, (0 missing)
##       goal               < 474.5    to the right, improve=0.010173680, (0 missing)
##       description_length < 5528.5   to the left,  improve=0.009625448, (0 missing)
##       mo_launched        splits as  LLLRLLLLLLLR, improve=0.008454889, (0 missing)
##   Surrogate splits:
##       goal               < 849      to the right, agree=0.67, adj=0.012, (0 split)
##       description_length < 11864.5  to the right, agree=0.67, adj=0.012, (0 split)
##       reward_length      < 621      to the left,  agree=0.67, adj=0.012, (0 split)
## 
## Node number 102: 298 observations,    complexity param=0.0001981542
##   mean=0.6442953, MSE=0.2291789 
##   left son=204 (264 obs) right son=205 (34 obs)
##   Primary splits:
##       campaign_duration  < 22.67    to the left,  improve=0.02446358, (0 missing)
##       goal               < 55       to the right, improve=0.02316434, (0 missing)
##       usa                < 0.5      to the left,  improve=0.02041138, (0 missing)
##       description_length < 819      to the left,  improve=0.01948386, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.01129227, (0 missing)
## 
## Node number 103: 217 observations,    complexity param=0.0001186963
##   mean=0.7741935, MSE=0.1748179 
##   left son=206 (87 obs) right son=207 (130 obs)
##   Primary splits:
##       description_length < 973.5    to the left,  improve=0.027358850, (0 missing)
##       reward_length      < 707.5    to the left,  improve=0.022776970, (0 missing)
##       campaign_duration  < 4.78     to the left,  improve=0.016461610, (0 missing)
##       category           splits as  R---L---R-R-LR-, improve=0.010734430, (0 missing)
##       goal               < 762.5    to the left,  improve=0.007228442, (0 missing)
##   Surrogate splits:
##       category           splits as  R---L---R-L-RR-, agree=0.636, adj=0.092, (0 split)
##       campaign_duration  < 5.01     to the left,  agree=0.622, adj=0.057, (0 split)
##       goal               < 45       to the left,  agree=0.618, adj=0.046, (0 split)
##       mo_launched        splits as  -LR-R-R--R--, agree=0.613, adj=0.034, (0 split)
##       social_media_count splits as  RRLR, agree=0.608, adj=0.023, (0 split)
## 
## Node number 104: 130 observations,    complexity param=0.0002366631
##   mean=0.5076923, MSE=0.2499408 
##   left son=208 (14 obs) right son=209 (116 obs)
##   Primary splits:
##       description_length < 603.5    to the left,  improve=0.06427265, (0 missing)
##       campaign_duration  < 30.02    to the left,  improve=0.05520164, (0 missing)
##       mo_launched        splits as  RLLRLLRLLRLR, improve=0.05466868, (0 missing)
##       social_media_count splits as  RRLR,         improve=0.03156566, (0 missing)
##       reward_length      < 649.5    to the left,  improve=0.01742191, (0 missing)
## 
## Node number 105: 337 observations,    complexity param=0.0001890358
##   mean=0.6884273, MSE=0.2144952 
##   left son=210 (132 obs) right son=211 (205 obs)
##   Primary splits:
##       description_length < 1230     to the left,  improve=0.024284660, (0 missing)
##       goal               < 2375     to the right, improve=0.021391990, (0 missing)
##       reward_length      < 3942     to the left,  improve=0.020393170, (0 missing)
##       mo_launched        splits as  LRLLLLLLRRLL, improve=0.010006820, (0 missing)
##       campaign_duration  < 31.955   to the left,  improve=0.008856806, (0 missing)
##   Surrogate splits:
##       video_status  < 0.5      to the left,  agree=0.629, adj=0.053, (0 split)
##       reward_length < 2656     to the left,  agree=0.620, adj=0.030, (0 split)
##       photo_key     < 0.5      to the left,  agree=0.614, adj=0.015, (0 split)
##       category      splits as  -R---LR--R-----, agree=0.614, adj=0.015, (0 split)
## 
## Node number 106: 53 observations,    complexity param=0.000368374
##   mean=0.5471698, MSE=0.247775 
##   left son=212 (24 obs) right son=213 (29 obs)
##   Primary splits:
##       mo_launched        splits as  RRLLRRRLLLRL, improve=0.29496140, (0 missing)
##       goal               < 475      to the right, improve=0.05999733, (0 missing)
##       reward_length      < 1968     to the left,  improve=0.05734095, (0 missing)
##       description_length < 864.5    to the left,  improve=0.03465959, (0 missing)
##       campaign_duration  < 60.02    to the right, improve=0.02586425, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 60.02    to the right, agree=0.604, adj=0.125, (0 split)
##       goal               < 175      to the left,  agree=0.604, adj=0.125, (0 split)
##       description_length < 728.5    to the left,  agree=0.604, adj=0.125, (0 split)
##       reward_length      < 2927.5   to the left,  agree=0.585, adj=0.083, (0 split)
## 
## Node number 107: 376 observations,    complexity param=0.0001666639
##   mean=0.8138298, MSE=0.1515109 
##   left son=214 (225 obs) right son=215 (151 obs)
##   Primary splits:
##       mo_launched        splits as  LRRLLRLRLLLR, improve=0.028497520, (0 missing)
##       social_media_count splits as  RRLL,         improve=0.014998410, (0 missing)
##       campaign_duration  < 30.065   to the left,  improve=0.008228242, (0 missing)
##       description_length < 1002     to the left,  improve=0.007915801, (0 missing)
##       goal               < 490      to the right, improve=0.005798385, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 29.965   to the right, agree=0.644, adj=0.113, (0 split)
##       reward_length      < 982.5    to the right, agree=0.614, adj=0.040, (0 split)
##       goal               < 157.5    to the right, agree=0.604, adj=0.013, (0 split)
##       category           splits as  -LR--LL--------, agree=0.601, adj=0.007, (0 split)
##       description_length < 102.5    to the right, agree=0.601, adj=0.007, (0 split)
## 
## Node number 108: 19 observations
##   mean=0.3684211, MSE=0.232687 
## 
## Node number 109: 17 observations
##   mean=0.9411765, MSE=0.05536332 
## 
## Node number 110: 116 observations,    complexity param=0.0001042352
##   mean=0.7931034, MSE=0.1640904 
##   left son=220 (89 obs) right son=221 (27 obs)
##   Primary splits:
##       campaign_duration  < 23.26    to the left,  improve=0.05334214, (0 missing)
##       description_length < 988      to the left,  improve=0.05125313, (0 missing)
##       goal               < 2875     to the right, improve=0.01888219, (0 missing)
##       reward_length      < 2529     to the left,  improve=0.01635866, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.01283482, (0 missing)
## 
## Node number 111: 295 observations
##   mean=0.9152542, MSE=0.07756392 
## 
## Node number 112: 293 observations,    complexity param=0.0002542986
##   mean=0.3276451, MSE=0.2202938 
##   left son=224 (198 obs) right son=225 (95 obs)
##   Primary splits:
##       goal          < 1921.195 to the right, improve=0.02853417, (0 missing)
##       reward_length < 8890     to the left,  improve=0.02850484, (0 missing)
##       category      splits as  R-------L---L--, improve=0.02472124, (0 missing)
##       mo_launched   splits as  LLLLLLRRLLLL, improve=0.01570970, (0 missing)
##       usa           < 0.5      to the left,  improve=0.01556681, (0 missing)
##   Surrogate splits:
##       description_length < 2045.5   to the left,  agree=0.683, adj=0.021, (0 split)
##       campaign_duration  < 16.185   to the right, agree=0.679, adj=0.011, (0 split)
##       social_media_count splits as  LLR-,         agree=0.679, adj=0.011, (0 split)
##       reward_length      < 4071.5   to the right, agree=0.679, adj=0.011, (0 split)
## 
## Node number 113: 921 observations,    complexity param=0.0003354286
##   mean=0.5287731, MSE=0.2491721 
##   left son=226 (96 obs) right son=227 (825 obs)
##   Primary splits:
##       campaign_duration  < 55.21    to the right, improve=0.01423765, (0 missing)
##       category           splits as  R-------L---R--, improve=0.01347721, (0 missing)
##       description_length < 534.5    to the left,  improve=0.01169745, (0 missing)
##       reward_length      < 8138.5   to the left,  improve=0.01050541, (0 missing)
##       mo_launched        splits as  LRRRRLLLRRRL, improve=0.00671206, (0 missing)
## 
## Node number 114: 400 observations,    complexity param=0.0003246805
##   mean=0.56, MSE=0.2464 
##   left son=228 (265 obs) right son=229 (135 obs)
##   Primary splits:
##       mo_launched        splits as  LRLRRLLLLRLL, improve=0.03051177, (0 missing)
##       goal               < 404      to the right, improve=0.02271183, (0 missing)
##       reward_length      < 10296.5  to the left,  improve=0.01251504, (0 missing)
##       description_length < 532.5    to the left,  improve=0.01155353, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.01056751, (0 missing)
##   Surrogate splits:
##       description_length < 2025.5   to the left,  agree=0.675, adj=0.037, (0 split)
##       social_media_count splits as  LLRL,         agree=0.670, adj=0.022, (0 split)
##       reward_length      < 4103.5   to the right, agree=0.668, adj=0.015, (0 split)
## 
## Node number 115: 243 observations,    complexity param=0.0002247599
##   mean=0.7736626, MSE=0.1751088 
##   left son=230 (137 obs) right son=231 (106 obs)
##   Primary splits:
##       description_length < 1370.5   to the left,  improve=0.04751173, (0 missing)
##       campaign_duration  < 8.035    to the left,  improve=0.03368369, (0 missing)
##       mo_launched        splits as  RRLLRRRRRRRL, improve=0.03242832, (0 missing)
##       reward_length      < 4132     to the left,  improve=0.02380598, (0 missing)
##       goal               < 760      to the left,  improve=0.01972990, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  LRLLLRLLRRLL, agree=0.646, adj=0.189, (0 split)
##       reward_length      < 8699     to the left,  agree=0.597, adj=0.075, (0 split)
##       goal               < 507.5    to the left,  agree=0.588, adj=0.057, (0 split)
##       social_media_count splits as  LRL-,         agree=0.580, adj=0.038, (0 split)
##       campaign_duration  < 29.975   to the left,  agree=0.572, adj=0.019, (0 split)
## 
## Node number 116: 672 observations,    complexity param=0.000409112
##   mean=0.547619, MSE=0.2477324 
##   left son=232 (503 obs) right son=233 (169 obs)
##   Primary splits:
##       goal               < 985      to the right, improve=0.02393797, (0 missing)
##       mo_launched        splits as  RRRRRRLRLRRL, improve=0.02002152, (0 missing)
##       reward_length      < 4852.5   to the left,  improve=0.01905706, (0 missing)
##       description_length < 7382.5   to the right, improve=0.01522237, (0 missing)
##       campaign_duration  < 34.53    to the right, improve=0.01300270, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 12.49    to the right, agree=0.757, adj=0.036, (0 split)
##       description_length < 2098.5   to the right, agree=0.753, adj=0.018, (0 split)
## 
## Node number 117: 368 observations,    complexity param=0.0002851963
##   mean=0.6902174, MSE=0.2138173 
##   left son=234 (76 obs) right son=235 (292 obs)
##   Primary splits:
##       video_status       < 0.5      to the left,  improve=0.032700490, (0 missing)
##       mo_launched        splits as  RLLRRRLLLLRL, improve=0.019789190, (0 missing)
##       description_length < 2565.5   to the right, improve=0.011167750, (0 missing)
##       reward_length      < 6182     to the right, improve=0.011003250, (0 missing)
##       goal               < 1707.5   to the right, improve=0.009005453, (0 missing)
##   Surrogate splits:
##       goal < 125      to the left,  agree=0.802, adj=0.039, (0 split)
## 
## Node number 118: 1717 observations,    complexity param=0.0004676145
##   mean=0.6930693, MSE=0.2127242 
##   left son=236 (814 obs) right son=237 (903 obs)
##   Primary splits:
##       goal              < 2011.5   to the right, improve=0.012470900, (0 missing)
##       campaign_duration < 23.03    to the right, improve=0.008108935, (0 missing)
##       reward_length     < 13185.5  to the left,  improve=0.005312164, (0 missing)
##       video_status      < 0.5      to the left,  improve=0.003258452, (0 missing)
##       category          splits as  R-------R---L--, improve=0.002869420, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 30.545   to the right, agree=0.574, adj=0.102, (0 split)
##       mo_launched        splits as  RRRLRRLRRRRR, agree=0.538, adj=0.025, (0 split)
##       description_length < 5835.5   to the right, agree=0.535, adj=0.020, (0 split)
##       reward_length      < 16157.5  to the right, agree=0.528, adj=0.005, (0 split)
##       social_media_count splits as  RRLR,         agree=0.527, adj=0.002, (0 split)
## 
## Node number 119: 357 observations,    complexity param=0.0001824518
##   mean=0.8319328, MSE=0.1398206 
##   left son=238 (108 obs) right son=239 (249 obs)
##   Primary splits:
##       reward_length      < 9333     to the left,  improve=0.031301430, (0 missing)
##       mo_launched        splits as  RLLLRLLLRLLR, improve=0.018882370, (0 missing)
##       description_length < 18463.5  to the left,  improve=0.018533960, (0 missing)
##       category           splits as  L-------R---L--, improve=0.010773980, (0 missing)
##       goal               < 3637.5   to the left,  improve=0.008128908, (0 missing)
##   Surrogate splits:
##       campaign_duration < 7.22     to the left,  agree=0.703, adj=0.019, (0 split)
##       goal              < 212.5    to the left,  agree=0.700, adj=0.009, (0 split)
## 
## Node number 120: 557 observations,    complexity param=0.000316034
##   mean=0.5421903, MSE=0.24822 
##   left son=240 (158 obs) right son=241 (399 obs)
##   Primary splits:
##       goal               < 2306.5   to the right, improve=0.022265830, (0 missing)
##       description_length < 551.5    to the left,  improve=0.014619030, (0 missing)
##       mo_launched        splits as  RRRRRLRLLRRR, improve=0.010558330, (0 missing)
##       reward_length      < 6445     to the right, improve=0.010392340, (0 missing)
##       campaign_duration  < 29.98    to the right, improve=0.007843175, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 89.99    to the right, agree=0.724, adj=0.025, (0 split)
##       description_length < 9713     to the right, agree=0.724, adj=0.025, (0 split)
## 
## Node number 121: 367 observations,    complexity param=0.0001863424
##   mean=0.6648501, MSE=0.2228244 
##   left son=242 (85 obs) right son=243 (282 obs)
##   Primary splits:
##       description_length < 993.5    to the left,  improve=0.016940910, (0 missing)
##       goal               < 3100     to the right, improve=0.014852030, (0 missing)
##       campaign_duration  < 60.745   to the left,  improve=0.011617980, (0 missing)
##       mo_launched        splits as  LLLLLLLLRLRR, improve=0.009070123, (0 missing)
##       reward_length      < 7182.5   to the right, improve=0.006602599, (0 missing)
##   Surrogate splits:
##       campaign_duration < 10.175   to the left,  agree=0.771, adj=0.012, (0 split)
## 
## Node number 122: 195 observations,    complexity param=0.0001763981
##   mean=0.6717949, MSE=0.2204865 
##   left son=244 (129 obs) right son=245 (66 obs)
##   Primary splits:
##       mo_launched        splits as  RRLLLLRLLRLL, improve=0.03996450, (0 missing)
##       campaign_duration  < 29.99    to the left,  improve=0.03451985, (0 missing)
##       goal               < 3241.5   to the right, improve=0.03084630, (0 missing)
##       reward_length      < 4198     to the left,  improve=0.02574786, (0 missing)
##       description_length < 1154.5   to the left,  improve=0.01590451, (0 missing)
##   Surrogate splits:
##       goal               < 325      to the right, agree=0.677, adj=0.045, (0 split)
##       reward_length      < 16582    to the left,  agree=0.677, adj=0.045, (0 split)
##       category           splits as  -RL--RLL-------, agree=0.672, adj=0.030, (0 split)
##       description_length < 3879     to the left,  agree=0.667, adj=0.015, (0 split)
## 
## Node number 123: 85 observations
##   mean=0.8941176, MSE=0.09467128 
## 
## Node number 124: 442 observations,    complexity param=0.0002441824
##   mean=0.5950226, MSE=0.2409707 
##   left son=248 (136 obs) right son=249 (306 obs)
##   Primary splits:
##       mo_launched        splits as  RLRRLRLLRRRR, improve=0.02220712, (0 missing)
##       reward_length      < 5282     to the left,  improve=0.01810656, (0 missing)
##       campaign_duration  < 54.335   to the right, improve=0.01435118, (0 missing)
##       goal               < 1562.5   to the right, improve=0.01044697, (0 missing)
##       description_length < 86       to the right, improve=0.00599628, (0 missing)
##   Surrogate splits:
##       description_length < 1076     to the right, agree=0.699, adj=0.022, (0 split)
##       category           splits as  ----L-R---R--R-, agree=0.697, adj=0.015, (0 split)
##       usa                < 0.5      to the left,  agree=0.695, adj=0.007, (0 split)
## 
## Node number 125: 1104 observations,    complexity param=0.0002640441
##   mean=0.7382246, MSE=0.193249 
##   left son=250 (926 obs) right son=251 (178 obs)
##   Primary splits:
##       goal              < 645      to the right, improve=0.012055560, (0 missing)
##       campaign_duration < 29.965   to the right, improve=0.011254380, (0 missing)
##       mo_launched       splits as  RRRRLLLLRRLL, improve=0.008348602, (0 missing)
##       category          splits as  ----LRR---L--R-, improve=0.006875854, (0 missing)
##       reward_length     < 11718.5  to the left,  improve=0.005174943, (0 missing)
##   Surrogate splits:
##       campaign_duration < 7.805    to the right, agree=0.841, adj=0.017, (0 split)
## 
## Node number 126: 4070 observations,    complexity param=0.0004133988
##   mean=0.7850123, MSE=0.168768 
##   left son=252 (2933 obs) right son=253 (1137 obs)
##   Primary splits:
##       reward_length      < 9064.5   to the left,  improve=0.005862486, (0 missing)
##       description_length < 4646.5   to the left,  improve=0.005496977, (0 missing)
##       goal               < 687.5    to the right, improve=0.004187911, (0 missing)
##       mo_launched        splits as  RRRRLLLLLLRL, improve=0.003957944, (0 missing)
##       category           splits as  -RRRLRLR-RLR-LR, improve=0.003751581, (0 missing)
##   Surrogate splits:
##       description_length < 9972     to the left,  agree=0.724, adj=0.012, (0 split)
##       goal               < 4098     to the left,  agree=0.722, adj=0.005, (0 split)
##       category           splits as  -RLLLLLR-LLL-LL, agree=0.722, adj=0.004, (0 split)
##       campaign_duration  < 29.955   to the right, agree=0.721, adj=0.002, (0 split)
## 
## Node number 127: 1451 observations,    complexity param=0.0001982897
##   mean=0.8711234, MSE=0.1122674 
##   left son=254 (622 obs) right son=255 (829 obs)
##   Primary splits:
##       reward_length      < 6368.5   to the left,  improve=0.009816745, (0 missing)
##       mo_launched        splits as  LRRLLLLLLLLL, improve=0.004983621, (0 missing)
##       campaign_duration  < 19.905   to the right, improve=0.004450603, (0 missing)
##       description_length < 2536.5   to the left,  improve=0.004438642, (0 missing)
##       usa                < 0.5      to the left,  improve=0.004425304, (0 missing)
##   Surrogate splits:
##       category          splits as  -LRRR-LR--RR-RR, agree=0.615, adj=0.101, (0 split)
##       goal              < 525      to the left,  agree=0.611, adj=0.092, (0 split)
##       campaign_duration < 14.21    to the left,  agree=0.592, adj=0.048, (0 split)
## 
## Node number 132: 236 observations
##   mean=0.01694915, MSE=0.01666188 
## 
## Node number 133: 291 observations
##   mean=0.1065292, MSE=0.09518074 
## 
## Node number 134: 82 observations
##   mean=0.07317073, MSE=0.06781678 
## 
## Node number 135: 149 observations
##   mean=0.2281879, MSE=0.1761182 
## 
## Node number 138: 246 observations
##   mean=0.1097561, MSE=0.0977097 
## 
## Node number 139: 185 observations,    complexity param=0.0002778713
##   mean=0.2756757, MSE=0.1996786 
##   left son=278 (93 obs) right son=279 (92 obs)
##   Primary splits:
##       description_length < 1672     to the left,  improve=0.07927611, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.03759566, (0 missing)
##       mo_launched        splits as  RLLLRRRLLLLL, improve=0.03521608, (0 missing)
##       campaign_duration  < 61.035   to the left,  improve=0.03010159, (0 missing)
##       reward_length      < 3687.5   to the left,  improve=0.02873233, (0 missing)
##   Surrogate splits:
##       category          splits as  R---------L--R-, agree=0.616, adj=0.228, (0 split)
##       reward_length     < 4299     to the left,  agree=0.600, adj=0.196, (0 split)
##       campaign_duration < 41.985   to the left,  agree=0.589, adj=0.174, (0 split)
##       mo_launched       splits as  RRRLLRLLRLRL, agree=0.584, adj=0.163, (0 split)
##       goal              < 9590     to the right, agree=0.562, adj=0.120, (0 split)
## 
## Node number 140: 59 observations
##   mean=0, MSE=0 
## 
## Node number 141: 110 observations
##   mean=0.1636364, MSE=0.1368595 
## 
## Node number 142: 337 observations,    complexity param=0.0001793883
##   mean=0.2077151, MSE=0.1645696 
##   left son=284 (129 obs) right son=285 (208 obs)
##   Primary splits:
##       mo_launched   splits as  LLRLLRLRRRRR, improve=0.031507350, (0 missing)
##       video_status  < 0.5      to the left,  improve=0.022251510, (0 missing)
##       usa           < 0.5      to the left,  improve=0.009536038, (0 missing)
##       reward_length < 4187     to the left,  improve=0.008289929, (0 missing)
##       goal          < 4675     to the left,  improve=0.007941831, (0 missing)
##   Surrogate splits:
##       reward_length      < 4748.5   to the right, agree=0.635, adj=0.047, (0 split)
##       campaign_duration  < 13.625   to the left,  agree=0.629, adj=0.031, (0 split)
##       social_media_count splits as  RLR-,         agree=0.629, adj=0.031, (0 split)
##       description_length < 847      to the left,  agree=0.620, adj=0.008, (0 split)
## 
## Node number 143: 473 observations,    complexity param=0.00053513
##   mean=0.3932347, MSE=0.2386012 
##   left son=286 (189 obs) right son=287 (284 obs)
##   Primary splits:
##       description_length < 1510.5   to the left,  improve=0.04618732, (0 missing)
##       mo_launched        splits as  LRRLLLRRRLLR, improve=0.02807059, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.02289596, (0 missing)
##       reward_length      < 4436.5   to the left,  improve=0.02240756, (0 missing)
##       campaign_duration  < 58.78    to the right, improve=0.01598931, (0 missing)
##   Surrogate splits:
##       social_media_count splits as  RRRL,         agree=0.607, adj=0.016, (0 split)
##       campaign_duration  < 10.32    to the left,  agree=0.603, adj=0.005, (0 split)
##       mo_launched        splits as  RRRRRRRRRRLR, agree=0.603, adj=0.005, (0 split)
##       reward_length      < 3031.5   to the left,  agree=0.603, adj=0.005, (0 split)
## 
## Node number 146: 82 observations
##   mean=0.09756098, MSE=0.08804283 
## 
## Node number 147: 43 observations,    complexity param=0.0001380458
##   mean=0.372093, MSE=0.2336398 
##   left son=294 (18 obs) right son=295 (25 obs)
##   Primary splits:
##       description_length < 859.5    to the left,  improve=0.13004630, (0 missing)
##       reward_length      < 4250.5   to the right, improve=0.07716806, (0 missing)
##       campaign_duration  < 59.265   to the right, improve=0.05326705, (0 missing)
##       goal               < 11000    to the left,  improve=0.05041667, (0 missing)
##       social_media_count splits as  LRR-,         improve=0.03813393, (0 missing)
##   Surrogate splits:
##       reward_length     < 1269     to the left,  agree=0.651, adj=0.167, (0 split)
##       mo_launched       splits as  --R-----RRL-, agree=0.628, adj=0.111, (0 split)
##       campaign_duration < 30.02    to the left,  agree=0.605, adj=0.056, (0 split)
##       goal              < 11000    to the left,  agree=0.605, adj=0.056, (0 split)
## 
## Node number 148: 78 observations
##   mean=0.1410256, MSE=0.1211374 
## 
## Node number 149: 69 observations,    complexity param=0.0001964052
##   mean=0.3768116, MSE=0.2348246 
##   left son=298 (39 obs) right son=299 (30 obs)
##   Primary splits:
##       campaign_duration  < 30.065   to the left,  improve=0.11807490, (0 missing)
##       description_length < 749.5    to the left,  improve=0.06468822, (0 missing)
##       goal               < 5275     to the right, improve=0.03652355, (0 missing)
##       reward_length      < 2077.5   to the left,  improve=0.02256451, (0 missing)
##       mo_launched        splits as  -L-R-LL-R-LR, improve=0.01252236, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  -R-R-LL-L-LR, agree=0.681, adj=0.267, (0 split)
##       description_length < 1429.5   to the left,  agree=0.652, adj=0.200, (0 split)
##       reward_length      < 2542.5   to the left,  agree=0.594, adj=0.067, (0 split)
## 
## Node number 150: 34 observations,    complexity param=0.0002051527
##   mean=0.3529412, MSE=0.2283737 
##   left son=300 (27 obs) right son=301 (7 obs)
##   Primary splits:
##       mo_launched        splits as  LRLRLLLL-LLL, improve=0.28860030, (0 missing)
##       reward_length      < 4568     to the left,  improve=0.09218855, (0 missing)
##       campaign_duration  < 59.52    to the left,  improve=0.05419272, (0 missing)
##       goal               < 6250     to the right, improve=0.04045954, (0 missing)
##       description_length < 941.5    to the right, improve=0.01753247, (0 missing)
## 
## Node number 151: 63 observations,    complexity param=0.0001533001
##   mean=0.6349206, MSE=0.2317964 
##   left son=302 (28 obs) right son=303 (35 obs)
##   Primary splits:
##       description_length < 944.5    to the left,  improve=0.10048910, (0 missing)
##       goal               < 6100     to the left,  improve=0.09761064, (0 missing)
##       social_media_count splits as  RLL-,         improve=0.09510870, (0 missing)
##       mo_launched        splits as  RLRLLRLRLRRL, improve=0.07617754, (0 missing)
##       campaign_duration  < 46.76    to the right, improve=0.07440217, (0 missing)
##   Surrogate splits:
##       social_media_count splits as  RLR-,         agree=0.635, adj=0.179, (0 split)
##       mo_launched        splits as  RRRLRRRRRLRL, agree=0.635, adj=0.179, (0 split)
##       reward_length      < 4149     to the left,  agree=0.587, adj=0.071, (0 split)
##       campaign_duration  < 29.98    to the left,  agree=0.571, adj=0.036, (0 split)
## 
## Node number 156: 166 observations,    complexity param=0.0004970731
##   mean=0.4578313, MSE=0.2482218 
##   left son=312 (45 obs) right son=313 (121 obs)
##   Primary splits:
##       reward_length      < 3555     to the left,  improve=0.11750850, (0 missing)
##       description_length < 1958     to the left,  improve=0.03870295, (0 missing)
##       mo_launched        splits as  RLLRLRLRLLLL, improve=0.03029807, (0 missing)
##       campaign_duration  < 30.02    to the left,  improve=0.01622169, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.01520846, (0 missing)
##   Surrogate splits:
##       usa < 0.5      to the left,  agree=0.735, adj=0.022, (0 split)
## 
## Node number 157: 223 observations,    complexity param=0.0002768289
##   mean=0.6950673, MSE=0.2119488 
##   left son=314 (8 obs) right son=315 (215 obs)
##   Primary splits:
##       reward_length      < 1221.5   to the left,  improve=0.05705226, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.04048751, (0 missing)
##       campaign_duration  < 59.975   to the right, improve=0.02892017, (0 missing)
##       description_length < 2419.5   to the left,  improve=0.01856373, (0 missing)
##       mo_launched        splits as  RRRRRRRRRLRR, improve=0.01774972, (0 missing)
## 
## Node number 158: 13 observations
##   mean=0.6153846, MSE=0.2366864 
## 
## Node number 159: 73 observations
##   mean=0.9452055, MSE=0.05179208 
## 
## Node number 160: 275 observations
##   mean=0.04727273, MSE=0.04503802 
## 
## Node number 161: 1146 observations,    complexity param=0.0006292943
##   mean=0.2495637, MSE=0.1872817 
##   left son=322 (342 obs) right son=323 (804 obs)
##   Primary splits:
##       description_length < 1854.5   to the left,  improve=0.028560850, (0 missing)
##       reward_length      < 7191.5   to the left,  improve=0.015127790, (0 missing)
##       mo_launched        splits as  LLRRLRRLRLLL, improve=0.012360460, (0 missing)
##       goal               < 15888.5  to the right, improve=0.010846710, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.007448234, (0 missing)
## 
## Node number 162: 695 observations,    complexity param=0.0004474458
##   mean=0.3079137, MSE=0.2131028 
##   left son=324 (233 obs) right son=325 (462 obs)
##   Primary splits:
##       goal              < 26125    to the right, improve=0.02889090, (0 missing)
##       mo_launched       splits as  RRLRLLRRRRLR, improve=0.02514129, (0 missing)
##       reward_length     < 8677     to the left,  improve=0.02253990, (0 missing)
##       video_status      < 0.5      to the left,  improve=0.01755865, (0 missing)
##       campaign_duration < 29.585   to the right, improve=0.01464116, (0 missing)
##   Surrogate splits:
##       description_length < 20407    to the right, agree=0.675, adj=0.03, (0 split)
## 
## Node number 163: 296 observations,    complexity param=0.0003955493
##   mean=0.4527027, MSE=0.247763 
##   left son=326 (32 obs) right son=327 (264 obs)
##   Primary splits:
##       goal               < 117500   to the right, improve=0.05253754, (0 missing)
##       reward_length      < 5931     to the left,  improve=0.02769965, (0 missing)
##       mo_launched        splits as  RLLLRLLRLRLR, improve=0.02151403, (0 missing)
##       social_media_count splits as  LRRL,         improve=0.01535617, (0 missing)
##       description_length < 9492     to the left,  improve=0.01178485, (0 missing)
## 
## Node number 164: 200 observations,    complexity param=0.0002635163
##   mean=0.195, MSE=0.156975 
##   left son=328 (192 obs) right son=329 (8 obs)
##   Primary splits:
##       reward_length      < 10412    to the left,  improve=0.08176063, (0 missing)
##       category           splits as  L-------R---LL-, improve=0.05860981, (0 missing)
##       description_length < 2304     to the left,  improve=0.03994500, (0 missing)
##       mo_launched        splits as  LLLRLLLLLRRL, improve=0.03523827, (0 missing)
##       campaign_duration  < 30.06    to the left,  improve=0.01982076, (0 missing)
## 
## Node number 165: 30 observations,    complexity param=0.0001683588
##   mean=0.5666667, MSE=0.2455556 
##   left son=330 (7 obs) right son=331 (23 obs)
##   Primary splits:
##       mo_launched        splits as  RLRRRRLRRLLR, improve=0.22261880, (0 missing)
##       reward_length      < 5813.5   to the left,  improve=0.20706740, (0 missing)
##       category           splits as  R-------R---LL-, improve=0.19306180, (0 missing)
##       description_length < 3342     to the left,  improve=0.12778200, (0 missing)
##       goal               < 7000     to the right, improve=0.05656109, (0 missing)
##   Surrogate splits:
##       goal < 8225     to the right, agree=0.8, adj=0.143, (0 split)
## 
## Node number 166: 1191 observations,    complexity param=0.0004203066
##   mean=0.4366079, MSE=0.2459814 
##   left son=332 (755 obs) right son=333 (436 obs)
##   Primary splits:
##       category           splits as  R-------L---LR-, improve=0.013974920, (0 missing)
##       mo_launched        splits as  LRRRRLLLLLLL, improve=0.008978589, (0 missing)
##       description_length < 5230.5   to the left,  improve=0.008020233, (0 missing)
##       campaign_duration  < 36.495   to the right, improve=0.007561687, (0 missing)
##       reward_length      < 8713.5   to the right, improve=0.005959217, (0 missing)
##   Surrogate splits:
##       reward_length      < 5306.5   to the right, agree=0.637, adj=0.009, (0 split)
##       campaign_duration  < 13.995   to the right, agree=0.635, adj=0.002, (0 split)
##       description_length < 939.5    to the right, agree=0.635, adj=0.002, (0 split)
## 
## Node number 167: 401 observations,    complexity param=0.0004430328
##   mean=0.5760599, MSE=0.2442149 
##   left son=334 (180 obs) right son=335 (221 obs)
##   Primary splits:
##       mo_launched        splits as  RRRRLLLRRRLL, improve=0.044067310, (0 missing)
##       reward_length      < 10956.5  to the right, improve=0.018171130, (0 missing)
##       category           splits as  R-------R---LR-, improve=0.016392090, (0 missing)
##       description_length < 3083.5   to the left,  improve=0.008766403, (0 missing)
##       campaign_duration  < 27.94    to the left,  improve=0.007451913, (0 missing)
##   Surrogate splits:
##       goal               < 8002.5   to the right, agree=0.571, adj=0.044, (0 split)
##       campaign_duration  < 65.205   to the right, agree=0.566, adj=0.033, (0 split)
##       description_length < 8707     to the right, agree=0.564, adj=0.028, (0 split)
##       social_media_count splits as  RRLR,         agree=0.561, adj=0.022, (0 split)
##       reward_length      < 9168.5   to the left,  agree=0.556, adj=0.011, (0 split)
## 
## Node number 168: 42 observations
##   mean=0.04761905, MSE=0.04535147 
## 
## Node number 169: 78 observations,    complexity param=0.000119144
##   mean=0.2564103, MSE=0.190664 
##   left son=338 (34 obs) right son=339 (44 obs)
##   Primary splits:
##       mo_launched        splits as  RRRLLRRLRRLL, improve=0.07803799, (0 missing)
##       campaign_duration  < 34.2     to the left,  improve=0.04310345, (0 missing)
##       goal               < 34250    to the left,  improve=0.04231975, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.03399709, (0 missing)
##       description_length < 4238.5   to the left,  improve=0.02761494, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 23.76    to the left,  agree=0.603, adj=0.088, (0 split)
##       description_length < 3209     to the right, agree=0.603, adj=0.088, (0 split)
##       category           splits as  R-------L---RR-, agree=0.590, adj=0.059, (0 split)
##       reward_length      < 15266.5  to the right, agree=0.590, adj=0.059, (0 split)
##       goal               < 41500    to the right, agree=0.577, adj=0.029, (0 split)
## 
## Node number 170: 429 observations,    complexity param=0.0004805768
##   mean=0.4172494, MSE=0.2431523 
##   left son=340 (337 obs) right son=341 (92 obs)
##   Primary splits:
##       category           splits as  L-------L---LR-, improve=0.04595567, (0 missing)
##       mo_launched        splits as  RLRLRRRRRLRL, improve=0.03591787, (0 missing)
##       campaign_duration  < 48.25    to the right, improve=0.01300878, (0 missing)
##       description_length < 7040     to the left,  improve=0.01073743, (0 missing)
##       reward_length      < 12521    to the left,  improve=0.01004774, (0 missing)
##   Surrogate splits:
##       reward_length < 11573.5  to the right, agree=0.79, adj=0.022, (0 split)
## 
## Node number 171: 150 observations,    complexity param=0.0002725443
##   mean=0.62, MSE=0.2356 
##   left son=342 (108 obs) right son=343 (42 obs)
##   Primary splits:
##       mo_launched        splits as  LLRRLRLRLLLR, improve=0.07512209, (0 missing)
##       goal               < 33750    to the right, improve=0.06092618, (0 missing)
##       category           splits as  L-------R---RR-, improve=0.03875579, (0 missing)
##       description_length < 14613    to the left,  improve=0.03551529, (0 missing)
##       campaign_duration  < 59.715   to the left,  improve=0.03452976, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 19.54    to the right, agree=0.727, adj=0.024, (0 split)
##       description_length < 5343     to the right, agree=0.727, adj=0.024, (0 split)
##       reward_length      < 68822.5  to the left,  agree=0.727, adj=0.024, (0 split)
## 
## Node number 172: 438 observations,    complexity param=0.0002460456
##   mean=0.4703196, MSE=0.2491191 
##   left son=344 (375 obs) right son=345 (63 obs)
##   Primary splits:
##       campaign_duration  < 29.8     to the right, improve=0.021965020, (0 missing)
##       goal               < 6775     to the right, improve=0.014668000, (0 missing)
##       reward_length      < 14451.5  to the left,  improve=0.012052230, (0 missing)
##       mo_launched        splits as  LLRRRRLRLRRL, improve=0.011055820, (0 missing)
##       description_length < 1553.5   to the left,  improve=0.006268881, (0 missing)
##   Surrogate splits:
##       goal < 4632.5   to the right, agree=0.858, adj=0.016, (0 split)
## 
## Node number 173: 428 observations,    complexity param=0.0003723448
##   mean=0.6121495, MSE=0.2374225 
##   left son=346 (296 obs) right son=347 (132 obs)
##   Primary splits:
##       mo_launched       splits as  RRLLLLRLRLLL, improve=0.03569249, (0 missing)
##       reward_length     < 22020    to the left,  improve=0.02569112, (0 missing)
##       goal              < 7635     to the right, improve=0.01873080, (0 missing)
##       video_status      < 0.5      to the left,  improve=0.01665781, (0 missing)
##       campaign_duration < 27.835   to the right, improve=0.01569645, (0 missing)
## 
## Node number 174: 468 observations,    complexity param=0.0003724196
##   mean=0.6581197, MSE=0.2249982 
##   left son=348 (221 obs) right son=349 (247 obs)
##   Primary splits:
##       goal               < 10750    to the right, improve=0.02769893, (0 missing)
##       social_media_count splits as  LRL-,         improve=0.02545725, (0 missing)
##       campaign_duration  < 33.915   to the left,  improve=0.02452472, (0 missing)
##       description_length < 13810.5  to the left,  improve=0.02283656, (0 missing)
##       usa                < 0.5      to the left,  improve=0.01972609, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  LRRLLLRRLLLR, agree=0.581, adj=0.113, (0 split)
##       description_length < 5137.5   to the right, agree=0.562, adj=0.072, (0 split)
##       reward_length      < 15478.5  to the right, agree=0.562, adj=0.072, (0 split)
##       category           splits as  --------R----L-, agree=0.547, adj=0.041, (0 split)
##       campaign_duration  < 35.465   to the left,  agree=0.532, adj=0.009, (0 split)
## 
## Node number 175: 230 observations,    complexity param=0.000168644
##   mean=0.8130435, MSE=0.1520038 
##   left son=350 (79 obs) right son=351 (151 obs)
##   Primary splits:
##       goal               < 15500    to the right, improve=0.04698788, (0 missing)
##       mo_launched        splits as  RRRLRRLRRRLR, improve=0.03469547, (0 missing)
##       description_length < 4958.5   to the left,  improve=0.03149065, (0 missing)
##       campaign_duration  < 59.98    to the right, improve=0.01776272, (0 missing)
##       reward_length      < 35451.5  to the left,  improve=0.01617932, (0 missing)
##   Surrogate splits:
##       description_length < 21035    to the right, agree=0.670, adj=0.038, (0 split)
##       social_media_count splits as  RRRL,         agree=0.661, adj=0.013, (0 split)
## 
## Node number 176: 211 observations
##   mean=0.04739336, MSE=0.04514723 
## 
## Node number 177: 83 observations,    complexity param=0.0001045788
##   mean=0.2289157, MSE=0.1765133 
##   left son=354 (64 obs) right son=355 (19 obs)
##   Primary splits:
##       reward_length      < 14256.5  to the right, improve=0.06208949, (0 missing)
##       mo_launched        splits as  LLLLRRLLLLLR, improve=0.04918007, (0 missing)
##       description_length < 3192     to the left,  improve=0.04687550, (0 missing)
##       campaign_duration  < 29.335   to the right, improve=0.03200692, (0 missing)
##       social_media_count splits as  LRLL,         improve=0.02978148, (0 missing)
##   Surrogate splits:
##       goal < 54750    to the right, agree=0.795, adj=0.105, (0 split)
## 
## Node number 178: 210 observations,    complexity param=0.00024866
##   mean=0.2619048, MSE=0.1933107 
##   left son=356 (182 obs) right son=357 (28 obs)
##   Primary splits:
##       reward_length      < 33712    to the left,  improve=0.05966614, (0 missing)
##       goal               < 118500   to the right, improve=0.05393344, (0 missing)
##       campaign_duration  < 35.015   to the right, improve=0.03752753, (0 missing)
##       mo_launched        splits as  RLRR--RLRRRL, improve=0.03061875, (0 missing)
##       description_length < 12078.5  to the right, improve=0.02313133, (0 missing)
##   Surrogate splits:
##       description_length < 17746    to the left,  agree=0.876, adj=0.071, (0 split)
##       social_media_count splits as  LLLR,         agree=0.871, adj=0.036, (0 split)
## 
## Node number 179: 45 observations
##   mean=0.5333333, MSE=0.2488889 
## 
## Node number 184: 303 observations,    complexity param=0.0003163914
##   mean=0.2013201, MSE=0.1607903 
##   left son=368 (296 obs) right son=369 (7 obs)
##   Primary splits:
##       category           splits as  ----RRL---L----, improve=0.06325856, (0 missing)
##       campaign_duration  < 40.115   to the right, improve=0.04504401, (0 missing)
##       reward_length      < 6735.5   to the left,  improve=0.03337524, (0 missing)
##       mo_launched        splits as  RLRLLRLLRRLL, improve=0.03153277, (0 missing)
##       description_length < 1801.5   to the left,  improve=0.02207715, (0 missing)
## 
## Node number 185: 34 observations,    complexity param=0.0001235738
##   mean=0.5882353, MSE=0.2422145 
##   left son=370 (19 obs) right son=371 (15 obs)
##   Primary splits:
##       mo_launched        splits as  LRLRLRLLRRLL, improve=0.14616540, (0 missing)
##       goal               < 38000    to the left,  improve=0.10446430, (0 missing)
##       reward_length      < 17935    to the right, improve=0.06862155, (0 missing)
##       campaign_duration  < 33.92    to the right, improve=0.05714286, (0 missing)
##       description_length < 1308.5   to the left,  improve=0.04102564, (0 missing)
##   Surrogate splits:
##       social_media_count splits as  LRLL, agree=0.647, adj=0.200, (0 split)
##       reward_length      < 17679    to the right, agree=0.647, adj=0.200, (0 split)
##       campaign_duration  < 30.16    to the right, agree=0.618, adj=0.133, (0 split)
##       category           splits as  ------R---L----, agree=0.618, adj=0.133, (0 split)
##       goal               < 22350    to the right, agree=0.618, adj=0.133, (0 split)
## 
## Node number 186: 178 observations,    complexity param=0.0002832746
##   mean=0.2977528, MSE=0.2090961 
##   left son=372 (119 obs) right son=373 (59 obs)
##   Primary splits:
##       category           splits as  --R-L-R---L----, improve=0.07413767, (0 missing)
##       mo_launched        splits as  RRRLRLRLRRRR, improve=0.04075481, (0 missing)
##       campaign_duration  < 28.625   to the right, improve=0.03851942, (0 missing)
##       reward_length      < 14963    to the left,  improve=0.03396680, (0 missing)
##       social_media_count splits as  RLLL, improve=0.02791090, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 21.02    to the right, agree=0.691, adj=0.068, (0 split)
##       goal               < 13750    to the left,  agree=0.680, adj=0.034, (0 split)
##       reward_length      < 4892.5   to the right, agree=0.680, adj=0.034, (0 split)
##       description_length < 122      to the right, agree=0.674, adj=0.017, (0 split)
## 
## Node number 187: 1899 observations,    complexity param=0.0009413476
##   mean=0.5734597, MSE=0.2446037 
##   left son=374 (1313 obs) right son=375 (586 obs)
##   Primary splits:
##       reward_length      < 9629.5   to the left,  improve=0.019740550, (0 missing)
##       goal               < 6065.95  to the right, improve=0.013309430, (0 missing)
##       description_length < 1139.5   to the left,  improve=0.012986760, (0 missing)
##       campaign_duration  < 41.465   to the right, improve=0.009570384, (0 missing)
##       category           splits as  -RR-RRLR--LR--R, improve=0.007758022, (0 missing)
##   Surrogate splits:
##       category           splits as  -LR-LLLL--LR--L, agree=0.693, adj=0.005, (0 split)
##       social_media_count splits as  LLLR, agree=0.692, adj=0.002, (0 split)
##       goal               < 18850    to the left,  agree=0.692, adj=0.002, (0 split)
##       description_length < 1882     to the left,  agree=0.692, adj=0.002, (0 split)
## 
## Node number 188: 1974 observations,    complexity param=0.001807182
##   mean=0.5653495, MSE=0.2457294 
##   left son=376 (1289 obs) right son=377 (685 obs)
##   Primary splits:
##       description_length < 5348     to the left,  improve=0.036290650, (0 missing)
##       reward_length      < 18898.5  to the left,  improve=0.033508480, (0 missing)
##       category           splits as  ------R---L----, improve=0.014396410, (0 missing)
##       campaign_duration  < 55.645   to the right, improve=0.009109208, (0 missing)
##       goal               < 25275    to the right, improve=0.008819818, (0 missing)
##   Surrogate splits:
##       reward_length < 22772.5  to the left,  agree=0.671, adj=0.053, (0 split)
##       goal          < 52163    to the left,  agree=0.654, adj=0.003, (0 split)
## 
## Node number 189: 3476 observations,    complexity param=0.0004761727
##   mean=0.7209436, MSE=0.2011839 
##   left son=378 (1032 obs) right son=379 (2444 obs)
##   Primary splits:
##       campaign_duration  < 39.94    to the right, improve=0.006632673, (0 missing)
##       goal               < 9237.5   to the right, improve=0.004084003, (0 missing)
##       description_length < 3916.5   to the left,  improve=0.003915603, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.003730476, (0 missing)
##       usa                < 0.5      to the left,  improve=0.003603536, (0 missing)
##   Surrogate splits:
##       description_length < 1896.5   to the left,  agree=0.704, adj=0.002, (0 split)
## 
## Node number 190: 27 observations,    complexity param=0.0001490477
##   mean=0.5925926, MSE=0.2414266 
##   left son=380 (12 obs) right son=381 (15 obs)
##   Primary splits:
##       mo_launched        splits as  RLRLLRRRRRLL, improve=0.22272730, (0 missing)
##       description_length < 3160.5   to the left,  improve=0.20469500, (0 missing)
##       reward_length      < 10321.5  to the left,  improve=0.05165289, (0 missing)
##       goal               < 6750     to the right, improve=0.02810829, (0 missing)
##       campaign_duration  < 33.605   to the right, improve=0.02088904, (0 missing)
##   Surrogate splits:
##       reward_length      < 14912    to the right, agree=0.667, adj=0.250, (0 split)
##       description_length < 3160.5   to the left,  agree=0.630, adj=0.167, (0 split)
##       campaign_duration  < 22.785   to the left,  agree=0.593, adj=0.083, (0 split)
##       goal               < 6750     to the right, agree=0.593, adj=0.083, (0 split)
## 
## Node number 191: 649 observations,    complexity param=0.000181015
##   mean=0.9306626, MSE=0.06452976 
##   left son=382 (29 obs) right son=383 (620 obs)
##   Primary splits:
##       description_length < 2225.5   to the left,  improve=0.04210241, (0 missing)
##       goal               < 19250    to the left,  improve=0.01549959, (0 missing)
##       category           splits as  -RRRLR-R-R-R--R, improve=0.01421715, (0 missing)
##       campaign_duration  < 57.53    to the right, improve=0.00811192, (0 missing)
##       mo_launched        splits as  RRRLLRLRLRRR, improve=0.00556470, (0 missing)
## 
## Node number 192: 59 observations
##   mean=0.03389831, MSE=0.03274921 
## 
## Node number 193: 628 observations,    complexity param=0.0002032936
##   mean=0.2372611, MSE=0.1809683 
##   left son=386 (412 obs) right son=387 (216 obs)
##   Primary splits:
##       mo_launched       splits as  LLRLLRLRRLLL, improve=0.017424440, (0 missing)
##       reward_length     < 2574.5   to the left,  improve=0.017375600, (0 missing)
##       goal              < 1994     to the right, improve=0.009231891, (0 missing)
##       video_status      < 0.5      to the left,  improve=0.009068513, (0 missing)
##       campaign_duration < 11.98    to the right, improve=0.008697727, (0 missing)
##   Surrogate splits:
##       goal              < 962.5    to the right, agree=0.659, adj=0.009, (0 split)
##       campaign_duration < 90.02    to the left,  agree=0.658, adj=0.005, (0 split)
##       reward_length     < 4042.5   to the left,  agree=0.658, adj=0.005, (0 split)
## 
## Node number 194: 266 observations,    complexity param=0.0002192833
##   mean=0.3120301, MSE=0.2146673 
##   left son=388 (215 obs) right son=389 (51 obs)
##   Primary splits:
##       campaign_duration < 29.89    to the right, improve=0.02778069, (0 missing)
##       category          splits as  --------R---LR-, improve=0.02157767, (0 missing)
##       mo_launched       splits as  LRLLLLRRRLLR, improve=0.01737251, (0 missing)
##       video_status      < 0.5      to the left,  improve=0.01675043, (0 missing)
##       reward_length     < 3689.5   to the left,  improve=0.01539245, (0 missing)
## 
## Node number 195: 134 observations,    complexity param=0.0002331282
##   mean=0.5, MSE=0.25 
##   left son=390 (15 obs) right son=391 (119 obs)
##   Primary splits:
##       reward_length      < 1983     to the left,  improve=0.06778711, (0 missing)
##       campaign_duration  < 22.935   to the right, improve=0.03413401, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.03333333, (0 missing)
##       mo_launched        splits as  RLRRLLLRLRLL, improve=0.02756892, (0 missing)
##       description_length < 3521.5   to the left,  improve=0.02337662, (0 missing)
##   Surrogate splits:
##       campaign_duration < 89.84    to the right, agree=0.903, adj=0.133, (0 split)
## 
## Node number 196: 639 observations,    complexity param=0.0004934071
##   mean=0.2832551, MSE=0.2030216 
##   left son=392 (150 obs) right son=393 (489 obs)
##   Primary splits:
##       reward_length      < 1630.5   to the left,  improve=0.037047540, (0 missing)
##       description_length < 490      to the left,  improve=0.027059880, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.018295100, (0 missing)
##       campaign_duration  < 21.025   to the right, improve=0.009803659, (0 missing)
##       social_media_count splits as  RRLR,         improve=0.007570736, (0 missing)
##   Surrogate splits:
##       campaign_duration < 11.215   to the left,  agree=0.77, adj=0.02, (0 split)
## 
## Node number 197: 563 observations,    complexity param=0.000423903
##   mean=0.4369449, MSE=0.2460241 
##   left son=394 (187 obs) right son=395 (376 obs)
##   Primary splits:
##       description_length < 594.5    to the left,  improve=0.02981108, (0 missing)
##       campaign_duration  < 23.135   to the right, improve=0.02654900, (0 missing)
##       reward_length      < 2917     to the left,  improve=0.02274319, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.02016466, (0 missing)
##       mo_launched        splits as  RRLRRRRLLRRR, improve=0.01582273, (0 missing)
##   Surrogate splits:
##       reward_length     < 691.5    to the left,  agree=0.675, adj=0.021, (0 split)
##       campaign_duration < 90.48    to the right, agree=0.671, adj=0.011, (0 split)
## 
## Node number 198: 350 observations,    complexity param=0.0001819475
##   mean=0.46, MSE=0.2484 
##   left son=396 (297 obs) right son=397 (53 obs)
##   Primary splits:
##       description_length < 3043     to the left,  improve=0.01900337, (0 missing)
##       campaign_duration  < 29.97    to the right, improve=0.01593603, (0 missing)
##       goal               < 3525     to the right, improve=0.01432039, (0 missing)
##       mo_launched        splits as  LRRRRLLLLLLL, improve=0.01389348, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.01148574, (0 missing)
## 
## Node number 199: 708 observations,    complexity param=0.0002903067
##   mean=0.6101695, MSE=0.2378627 
##   left son=398 (100 obs) right son=399 (608 obs)
##   Primary splits:
##       campaign_duration  < 53.995   to the right, improve=0.015593140, (0 missing)
##       description_length < 2142     to the left,  improve=0.014871420, (0 missing)
##       goal               < 1575     to the right, improve=0.012497320, (0 missing)
##       mo_launched        splits as  RLRRLRLLRRLR, improve=0.010874570, (0 missing)
##       social_media_count splits as  RRRL,         improve=0.008146751, (0 missing)
## 
## Node number 200: 300 observations,    complexity param=0.0002225164
##   mean=0.4366667, MSE=0.2459889 
##   left son=400 (60 obs) right son=401 (240 obs)
##   Primary splits:
##       goal               < 662.5    to the right, improve=0.02937125, (0 missing)
##       reward_length      < 2171.5   to the right, improve=0.02901228, (0 missing)
##       description_length < 1013.5   to the right, improve=0.02869306, (0 missing)
##       mo_launched        splits as  RRRRLLLLLLLL, improve=0.02576074, (0 missing)
##       category           splits as  L---L---L-L-LR-, improve=0.02139935, (0 missing)
## 
## Node number 201: 390 observations,    complexity param=0.000200063
##   mean=0.5538462, MSE=0.2471006 
##   left son=402 (17 obs) right son=403 (373 obs)
##   Primary splits:
##       campaign_duration  < 63.6     to the right, improve=0.01871661, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.01806746, (0 missing)
##       social_media_count splits as  LRRR,         improve=0.01710174, (0 missing)
##       mo_launched        splits as  RRRLLRRLRRRR, improve=0.01504905, (0 missing)
##       reward_length      < 3910.5   to the right, improve=0.01353436, (0 missing)
## 
## Node number 202: 162 observations,    complexity param=0.0002056406
##   mean=0.5432099, MSE=0.2481329 
##   left son=404 (9 obs) right son=405 (153 obs)
##   Primary splits:
##       goal          < 827.5    to the right, improve=0.04426218, (0 missing)
##       reward_length < 2902.5   to the right, improve=0.04213251, (0 missing)
##       mo_launched   splits as  RLLRRLLLLLLL, improve=0.03366488, (0 missing)
##       video_status  < 0.5      to the left,  improve=0.02986183, (0 missing)
##       usa           < 0.5      to the left,  improve=0.01710532, (0 missing)
##   Surrogate splits:
##       description_length < 1376.5   to the left,  agree=0.951, adj=0.111, (0 split)
## 
## Node number 203: 323 observations,    complexity param=0.0002005101
##   mean=0.6873065, MSE=0.2149163 
##   left son=406 (227 obs) right son=407 (96 obs)
##   Primary splits:
##       goal               < 475      to the right, improve=0.02592296, (0 missing)
##       mo_launched        splits as  LRRRLRLRRRLR, improve=0.01964415, (0 missing)
##       description_length < 5585     to the left,  improve=0.01304011, (0 missing)
##       social_media_count splits as  RLLR, improve=0.01275126, (0 missing)
##       category           splits as  R---R---L-L----, improve=0.01054621, (0 missing)
##   Surrogate splits:
##       description_length < 1315     to the right, agree=0.709, adj=0.021, (0 split)
##       social_media_count splits as  LLLR,         agree=0.706, adj=0.010, (0 split)
##       reward_length      < 696.5    to the right, agree=0.706, adj=0.010, (0 split)
## 
## Node number 204: 264 observations,    complexity param=0.0001981542
##   mean=0.6174242, MSE=0.2362115 
##   left son=408 (253 obs) right son=409 (11 obs)
##   Primary splits:
##       goal               < 55       to the right, improve=0.026940520, (0 missing)
##       description_length < 819      to the left,  improve=0.024479140, (0 missing)
##       campaign_duration  < 21.95    to the right, improve=0.017860130, (0 missing)
##       usa                < 0.5      to the left,  improve=0.013477500, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.009372796, (0 missing)
## 
## Node number 205: 34 observations
##   mean=0.8529412, MSE=0.1254325 
## 
## Node number 206: 87 observations,    complexity param=0.0001186963
##   mean=0.6896552, MSE=0.2140309 
##   left son=412 (9 obs) right son=413 (78 obs)
##   Primary splits:
##       category           splits as  R---L---L-R-RR-, improve=0.06844729, (0 missing)
##       social_media_count splits as  LLRR, improve=0.03937500, (0 missing)
##       description_length < 266      to the right, improve=0.03937500, (0 missing)
##       campaign_duration  < 20.65    to the left,  improve=0.03674309, (0 missing)
##       reward_length      < 3318.5   to the left,  improve=0.02136043, (0 missing)
## 
## Node number 207: 130 observations,    complexity param=0.0001146389
##   mean=0.8307692, MSE=0.1405917 
##   left son=414 (66 obs) right son=415 (64 obs)
##   Primary splits:
##       category          splits as  R---R---R-L-LR-, improve=0.03929605, (0 missing)
##       reward_length     < 3790     to the right, improve=0.03031236, (0 missing)
##       mo_launched       splits as  -RR-L-L--L--, improve=0.03023567, (0 missing)
##       campaign_duration < 15.415   to the left,  improve=0.02259187, (0 missing)
##       goal              < 475      to the right, improve=0.01536603, (0 missing)
##   Surrogate splits:
##       description_length < 1689     to the left,  agree=0.615, adj=0.219, (0 split)
##       mo_launched        splits as  -LR-L-L--R--, agree=0.600, adj=0.188, (0 split)
##       social_media_count splits as  RLLL,         agree=0.569, adj=0.125, (0 split)
##       reward_length      < 3072.5   to the right, agree=0.569, adj=0.125, (0 split)
##       campaign_duration  < 10.95    to the right, agree=0.562, adj=0.109, (0 split)
## 
## Node number 208: 14 observations
##   mean=0.1428571, MSE=0.122449 
## 
## Node number 209: 116 observations,    complexity param=0.0002366631
##   mean=0.5517241, MSE=0.2473246 
##   left son=418 (21 obs) right son=419 (95 obs)
##   Primary splits:
##       description_length < 2475.5   to the right, improve=0.08791450, (0 missing)
##       mo_launched        splits as  RLLRLRRLLRLR, improve=0.08077503, (0 missing)
##       campaign_duration  < 30.02    to the left,  improve=0.06646160, (0 missing)
##       goal               < 3275     to the right, improve=0.02661056, (0 missing)
##       reward_length      < 924      to the right, improve=0.02414259, (0 missing)
##   Surrogate splits:
##       social_media_count splits as  RRRL, agree=0.828, adj=0.048, (0 split)
## 
## Node number 210: 132 observations,    complexity param=0.0001436945
##   mean=0.5984848, MSE=0.2403007 
##   left son=420 (63 obs) right son=421 (69 obs)
##   Primary splits:
##       campaign_duration  < 32.02    to the left,  improve=0.04303224, (0 missing)
##       reward_length      < 3943     to the left,  improve=0.03756962, (0 missing)
##       description_length < 1202.5   to the right, improve=0.02279737, (0 missing)
##       social_media_count splits as  LRL-,         improve=0.02122973, (0 missing)
##       goal               < 2100     to the right, improve=0.01966703, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  RRRRRLRLLRRL, agree=0.644, adj=0.254, (0 split)
##       video_status       < 0.5      to the right, agree=0.598, adj=0.159, (0 split)
##       reward_length      < 3581.5   to the right, agree=0.598, adj=0.159, (0 split)
##       goal               < 2600     to the right, agree=0.591, adj=0.143, (0 split)
##       social_media_count splits as  RLL-,         agree=0.553, adj=0.063, (0 split)
## 
## Node number 211: 205 observations,    complexity param=0.0001890358
##   mean=0.7463415, MSE=0.1893159 
##   left son=422 (43 obs) right son=423 (162 obs)
##   Primary splits:
##       social_media_count splits as  RLR-,         improve=0.04966089, (0 missing)
##       reward_length      < 3551.5   to the right, improve=0.03191509, (0 missing)
##       description_length < 3951     to the left,  improve=0.02752724, (0 missing)
##       goal               < 2375     to the right, improve=0.02371208, (0 missing)
##       mo_launched        splits as  RRLRLLRLRRRL, improve=0.02111683, (0 missing)
##   Surrogate splits:
##       campaign_duration < 89.965   to the right, agree=0.795, adj=0.023, (0 split)
## 
## Node number 212: 24 observations
##   mean=0.25, MSE=0.1875 
## 
## Node number 213: 29 observations
##   mean=0.7931034, MSE=0.1640904 
## 
## Node number 214: 225 observations,    complexity param=0.0001075457
##   mean=0.76, MSE=0.1824 
##   left son=428 (42 obs) right son=429 (183 obs)
##   Primary splits:
##       description_length < 706      to the left,  improve=0.017266530, (0 missing)
##       social_media_count splits as  RLLL,         improve=0.016380520, (0 missing)
##       reward_length      < 2652     to the left,  improve=0.015787100, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.012335580, (0 missing)
##       mo_launched        splits as  R--RR-L-RRR-, improve=0.007257705, (0 missing)
##   Surrogate splits:
##       goal < 75       to the left,  agree=0.822, adj=0.048, (0 split)
## 
## Node number 215: 151 observations
##   mean=0.8940397, MSE=0.09473269 
## 
## Node number 220: 89 observations
##   mean=0.741573, MSE=0.1916425 
## 
## Node number 221: 27 observations
##   mean=0.962963, MSE=0.03566529 
## 
## Node number 224: 198 observations,    complexity param=0.0002542986
##   mean=0.2727273, MSE=0.1983471 
##   left son=448 (173 obs) right son=449 (25 obs)
##   Primary splits:
##       reward_length      < 8887.5   to the left,  improve=0.04454721, (0 missing)
##       mo_launched        splits as  LLLLLLRLLLLL, improve=0.02926030, (0 missing)
##       description_length < 1202     to the right, improve=0.02138991, (0 missing)
##       category           splits as  R-------L---L--, improve=0.01776852, (0 missing)
##       goal               < 2525     to the right, improve=0.01390315, (0 missing)
## 
## Node number 225: 95 observations,    complexity param=0.0001365279
##   mean=0.4421053, MSE=0.2466482 
##   left son=450 (10 obs) right son=451 (85 obs)
##   Primary splits:
##       description_length < 751.5    to the left,  improve=0.05582422, (0 missing)
##       mo_launched        splits as  LRRRLLRRRRLL, improve=0.05423513, (0 missing)
##       category           splits as  R-------L---L--, improve=0.03736109, (0 missing)
##       campaign_duration  < 28.905   to the right, improve=0.03594324, (0 missing)
##       reward_length      < 4375.5   to the right, improve=0.02824128, (0 missing)
## 
## Node number 226: 96 observations,    complexity param=0.0002501669
##   mean=0.3541667, MSE=0.2287326 
##   left son=452 (47 obs) right son=453 (49 obs)
##   Primary splits:
##       mo_launched        splits as  LRLRRLLLRRRL, improve=0.11097560, (0 missing)
##       campaign_duration  < 66.035   to the left,  improve=0.03523329, (0 missing)
##       goal               < 3586     to the right, improve=0.03332915, (0 missing)
##       reward_length      < 4503.5   to the left,  improve=0.03284056, (0 missing)
##       description_length < 1057.5   to the left,  improve=0.02006468, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 60.02    to the left,  agree=0.625, adj=0.234, (0 split)
##       description_length < 1208.5   to the left,  agree=0.625, adj=0.234, (0 split)
##       reward_length      < 6949     to the right, agree=0.625, adj=0.234, (0 split)
##       category           splits as  R-------L---L--, agree=0.573, adj=0.128, (0 split)
##       goal               < 2150     to the right, agree=0.552, adj=0.085, (0 split)
## 
## Node number 227: 825 observations,    complexity param=0.0003087869
##   mean=0.5490909, MSE=0.2475901 
##   left son=454 (441 obs) right son=455 (384 obs)
##   Primary splits:
##       category           splits as  R-------L---L--, improve=0.013909080, (0 missing)
##       description_length < 534.5    to the left,  improve=0.013355890, (0 missing)
##       reward_length      < 8138.5   to the left,  improve=0.012955930, (0 missing)
##       campaign_duration  < 53.145   to the left,  improve=0.008041048, (0 missing)
##       usa                < 0.5      to the left,  improve=0.004910912, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 24.28    to the right, agree=0.590, adj=0.120, (0 split)
##       mo_launched        splits as  RLLRLLLRLLLL, agree=0.566, adj=0.068, (0 split)
##       social_media_count splits as  LRLR,         agree=0.550, adj=0.034, (0 split)
##       reward_length      < 13081    to the left,  agree=0.549, adj=0.031, (0 split)
##       description_length < 2017.5   to the left,  agree=0.537, adj=0.005, (0 split)
## 
## Node number 228: 265 observations,    complexity param=0.0003246805
##   mean=0.4981132, MSE=0.2499964 
##   left son=456 (209 obs) right son=457 (56 obs)
##   Primary splits:
##       goal               < 404      to the right, improve=0.05008513, (0 missing)
##       description_length < 730.5    to the left,  improve=0.02583640, (0 missing)
##       category           splits as  L-------L---R--, improve=0.01549349, (0 missing)
##       reward_length      < 10434    to the left,  improve=0.01464065, (0 missing)
##       campaign_duration  < 47.55    to the right, improve=0.01280726, (0 missing)
##   Surrogate splits:
##       reward_length < 14280.5  to the left,  agree=0.796, adj=0.036, (0 split)
## 
## Node number 229: 135 observations,    complexity param=0.0002110181
##   mean=0.6814815, MSE=0.2170645 
##   left son=458 (81 obs) right son=459 (54 obs)
##   Primary splits:
##       campaign_duration  < 31.06    to the left,  improve=0.05460061, (0 missing)
##       reward_length      < 4194.5   to the right, improve=0.04559915, (0 missing)
##       social_media_count splits as  RRL-,         improve=0.02725875, (0 missing)
##       description_length < 1987.5   to the left,  improve=0.01759858, (0 missing)
##       mo_launched        splits as  -R-LL----R--, improve=0.01076362, (0 missing)
##   Surrogate splits:
##       reward_length      < 4384.5   to the right, agree=0.659, adj=0.148, (0 split)
##       mo_launched        splits as  -R-LL----L--, agree=0.652, adj=0.130, (0 split)
##       description_length < 736      to the right, agree=0.637, adj=0.093, (0 split)
##       goal               < 275      to the right, agree=0.607, adj=0.019, (0 split)
## 
## Node number 230: 137 observations,    complexity param=0.0002247599
##   mean=0.6934307, MSE=0.2125846 
##   left son=460 (53 obs) right son=461 (84 obs)
##   Primary splits:
##       mo_launched        splits as  LLLLRRRRRRRL, improve=0.08093014, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.03990621, (0 missing)
##       reward_length      < 4132     to the left,  improve=0.02958001, (0 missing)
##       goal               < 552.5    to the left,  improve=0.02925380, (0 missing)
##       description_length < 795.5    to the left,  improve=0.02346116, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 29.95    to the right, agree=0.686, adj=0.189, (0 split)
##       usa                < 0.5      to the left,  agree=0.642, adj=0.075, (0 split)
##       reward_length      < 9050.5   to the right, agree=0.642, adj=0.075, (0 split)
##       social_media_count splits as  RRL-,         agree=0.635, adj=0.057, (0 split)
##       description_length < 1334     to the right, agree=0.620, adj=0.019, (0 split)
## 
## Node number 231: 106 observations,    complexity param=0.0001456154
##   mean=0.8773585, MSE=0.1076006 
##   left son=462 (41 obs) right son=463 (65 obs)
##   Primary splits:
##       mo_launched        splits as  RRRLRLLRRLRR, improve=0.12436090, (0 missing)
##       reward_length      < 5448.5   to the left,  improve=0.07248450, (0 missing)
##       description_length < 1779     to the right, improve=0.05500988, (0 missing)
##       campaign_duration  < 27.27    to the right, improve=0.02679901, (0 missing)
##       video_status       < 0.5      to the right, improve=0.01453625, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 12.075   to the left,  agree=0.679, adj=0.171, (0 split)
##       description_length < 2028.5   to the right, agree=0.642, adj=0.073, (0 split)
##       reward_length      < 14896.5  to the right, agree=0.642, adj=0.073, (0 split)
##       goal               < 475      to the left,  agree=0.623, adj=0.024, (0 split)
## 
## Node number 232: 503 observations,    complexity param=0.0003762529
##   mean=0.5029821, MSE=0.2499911 
##   left son=464 (178 obs) right son=465 (325 obs)
##   Primary splits:
##       reward_length      < 4857     to the left,  improve=0.02914637, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.02332614, (0 missing)
##       mo_launched        splits as  RLRRRRLRLRRL, improve=0.02268716, (0 missing)
##       description_length < 7180.5   to the right, improve=0.01569974, (0 missing)
##       usa                < 0.5      to the left,  improve=0.01191348, (0 missing)
##   Surrogate splits:
##       campaign_duration < 10.16    to the left,  agree=0.648, adj=0.006, (0 split)
##       goal              < 4190.5   to the right, agree=0.648, adj=0.006, (0 split)
## 
## Node number 233: 169 observations,    complexity param=0.0003191593
##   mean=0.6804734, MSE=0.2174294 
##   left son=466 (71 obs) right son=467 (98 obs)
##   Primary splits:
##       mo_launched        splits as  LRRLLRRRLRRL, improve=0.08460572, (0 missing)
##       campaign_duration  < 29.98    to the right, improve=0.04229420, (0 missing)
##       description_length < 10694.5  to the right, improve=0.02132518, (0 missing)
##       reward_length      < 4144.5   to the right, improve=0.02028986, (0 missing)
##       goal               < 845      to the left,  improve=0.01281046, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 31.98    to the right, agree=0.615, adj=0.085, (0 split)
##       description_length < 18603    to the right, agree=0.598, adj=0.042, (0 split)
##       reward_length      < 6170     to the right, agree=0.592, adj=0.028, (0 split)
##       category           splits as  --------L---R--, agree=0.586, adj=0.014, (0 split)
##       goal               < 33.5     to the left,  agree=0.586, adj=0.014, (0 split)
## 
## Node number 234: 76 observations,    complexity param=0.0002851963
##   mean=0.5263158, MSE=0.2493075 
##   left son=468 (48 obs) right son=469 (28 obs)
##   Primary splits:
##       mo_launched        splits as  RLLRRLLLLLLR, improve=0.15744050, (0 missing)
##       campaign_duration  < 25.075   to the right, improve=0.07871435, (0 missing)
##       goal               < 1665.475 to the right, improve=0.06817901, (0 missing)
##       reward_length      < 5715     to the right, improve=0.05925926, (0 missing)
##       social_media_count splits as  LR--,         improve=0.02452107, (0 missing)
##   Surrogate splits:
##       reward_length      < 4228     to the right, agree=0.671, adj=0.107, (0 split)
##       campaign_duration  < 30.27    to the left,  agree=0.658, adj=0.071, (0 split)
##       goal               < 4100     to the left,  agree=0.658, adj=0.071, (0 split)
##       description_length < 2153     to the right, agree=0.645, adj=0.036, (0 split)
## 
## Node number 235: 292 observations,    complexity param=0.0001077795
##   mean=0.7328767, MSE=0.1957684 
##   left son=470 (105 obs) right son=471 (187 obs)
##   Primary splits:
##       mo_launched        splits as  RLRRRRRLLLRL, improve=0.016450730, (0 missing)
##       description_length < 2340.5   to the right, improve=0.015868080, (0 missing)
##       goal               < 3250     to the right, improve=0.008320201, (0 missing)
##       reward_length      < 4719     to the right, improve=0.007874467, (0 missing)
##       campaign_duration  < 42.5     to the right, improve=0.007277704, (0 missing)
##   Surrogate splits:
##       goal               < 236      to the left,  agree=0.654, adj=0.038, (0 split)
##       campaign_duration  < 9.39     to the left,  agree=0.651, adj=0.029, (0 split)
##       reward_length      < 5866     to the right, agree=0.651, adj=0.029, (0 split)
##       usa                < 0.5      to the left,  agree=0.644, adj=0.010, (0 split)
##       social_media_count splits as  RRRL,         agree=0.644, adj=0.010, (0 split)
## 
## Node number 236: 814 observations,    complexity param=0.0003840646
##   mean=0.6388206, MSE=0.2307288 
##   left son=472 (707 obs) right son=473 (107 obs)
##   Primary splits:
##       campaign_duration  < 23.03    to the right, improve=0.019919350, (0 missing)
##       reward_length      < 10678.5  to the left,  improve=0.011382910, (0 missing)
##       mo_launched        splits as  RRLRLRRRLRLL, improve=0.008714716, (0 missing)
##       description_length < 4631.5   to the left,  improve=0.008635313, (0 missing)
##       goal               < 4006     to the right, improve=0.005073562, (0 missing)
##   Surrogate splits:
##       reward_length < 39062    to the left,  agree=0.87, adj=0.009, (0 split)
## 
## Node number 237: 903 observations,    complexity param=0.0002038132
##   mean=0.7419712, MSE=0.1914499 
##   left son=474 (657 obs) right son=475 (246 obs)
##   Primary splits:
##       goal              < 642.5    to the right, improve=0.007739453, (0 missing)
##       campaign_duration < 14.695   to the right, improve=0.006762460, (0 missing)
##       mo_launched       splits as  LRRRRRRRRRLL, improve=0.005897450, (0 missing)
##       video_status      < 0.5      to the left,  improve=0.005480683, (0 missing)
##       usa               < 0.5      to the left,  improve=0.004889407, (0 missing)
##   Surrogate splits:
##       description_length < 2085.5   to the right, agree=0.731, adj=0.012, (0 split)
##       campaign_duration  < 89.725   to the left,  agree=0.729, adj=0.004, (0 split)
## 
## Node number 238: 108 observations,    complexity param=0.0001824518
##   mean=0.7314815, MSE=0.1964163 
##   left son=476 (86 obs) right son=477 (22 obs)
##   Primary splits:
##       mo_launched        splits as  LRLLLLLLRLLR, improve=0.09390639, (0 missing)
##       reward_length      < 7913     to the right, improve=0.05139247, (0 missing)
##       campaign_duration  < 29.995   to the right, improve=0.04720296, (0 missing)
##       goal               < 1400     to the right, improve=0.04206742, (0 missing)
##       social_media_count splits as  RRL-,         improve=0.03237624, (0 missing)
##   Surrogate splits:
##       description_length < 22082    to the left,  agree=0.815, adj=0.091, (0 split)
##       goal               < 438      to the right, agree=0.806, adj=0.045, (0 split)
## 
## Node number 239: 249 observations,    complexity param=0.0001628898
##   mean=0.875502, MSE=0.1089982 
##   left son=478 (48 obs) right son=479 (201 obs)
##   Primary splits:
##       mo_launched       splits as  RLRRRRRRRRLR, improve=0.04691634, (0 missing)
##       reward_length     < 13713.5  to the right, improve=0.03953868, (0 missing)
##       category          splits as  L-------R---L--, improve=0.03293237, (0 missing)
##       campaign_duration < 19.22    to the left,  improve=0.02226740, (0 missing)
##       video_status      < 0.5      to the right, improve=0.01874479, (0 missing)
##   Surrogate splits:
##       reward_length < 59465    to the right, agree=0.815, adj=0.042, (0 split)
## 
## Node number 240: 158 observations,    complexity param=0.0002356413
##   mean=0.4240506, MSE=0.2442317 
##   left son=480 (67 obs) right son=481 (91 obs)
##   Primary splits:
##       mo_launched        splits as  RLLRRLLRLRRR, improve=0.05948255, (0 missing)
##       reward_length      < 6326.5   to the right, improve=0.03906742, (0 missing)
##       description_length < 2840     to the left,  improve=0.01842072, (0 missing)
##       social_media_count splits as  RRLR,         improve=0.01500823, (0 missing)
##       campaign_duration  < 35.495   to the left,  improve=0.01238431, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 24.455   to the left,  agree=0.595, adj=0.045, (0 split)
##       goal               < 3065.5   to the right, agree=0.595, adj=0.045, (0 split)
##       description_length < 1202.5   to the left,  agree=0.595, adj=0.045, (0 split)
## 
## Node number 241: 399 observations,    complexity param=0.0002348238
##   mean=0.5889724, MSE=0.2420839 
##   left son=482 (57 obs) right son=483 (342 obs)
##   Primary splits:
##       description_length < 573.5    to the left,  improve=0.023681020, (0 missing)
##       mo_launched        splits as  RRRLLLRLLLRL, improve=0.013965810, (0 missing)
##       social_media_count splits as  LRRL,         improve=0.011913450, (0 missing)
##       goal               < 402.5    to the right, improve=0.009081474, (0 missing)
##       campaign_duration  < 29.98    to the right, improve=0.008419141, (0 missing)
##   Surrogate splits:
##       photo_key         < 0.5      to the left,  agree=0.862, adj=0.035, (0 split)
##       campaign_duration < 6.6      to the left,  agree=0.860, adj=0.018, (0 split)
## 
## Node number 242: 85 observations,    complexity param=0.0001863424
##   mean=0.5529412, MSE=0.2471972 
##   left son=484 (69 obs) right son=485 (16 obs)
##   Primary splits:
##       goal               < 563      to the right, improve=0.06319735, (0 missing)
##       mo_launched        splits as  LLRRR-RLLRLL, improve=0.06308324, (0 missing)
##       reward_length      < 7188.5   to the right, improve=0.05493993, (0 missing)
##       description_length < 914      to the right, improve=0.03207085, (0 missing)
##       campaign_duration  < 39.535   to the left,  improve=0.01716767, (0 missing)
##   Surrogate splits:
##       description_length < 143.5    to the right, agree=0.835, adj=0.125, (0 split)
## 
## Node number 243: 282 observations,    complexity param=0.0001783566
##   mean=0.6985816, MSE=0.2105654 
##   left son=486 (195 obs) right son=487 (87 obs)
##   Primary splits:
##       mo_launched        splits as  RLLLLLLLRLRR, improve=0.029258380, (0 missing)
##       description_length < 1054.5   to the right, improve=0.017513630, (0 missing)
##       campaign_duration  < 60.745   to the left,  improve=0.013122720, (0 missing)
##       goal               < 3100     to the right, improve=0.010356030, (0 missing)
##       reward_length      < 8865.5   to the right, improve=0.007242801, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 61.085   to the left,  agree=0.713, adj=0.069, (0 split)
##       reward_length      < 16511.5  to the left,  agree=0.699, adj=0.023, (0 split)
##       description_length < 8455     to the left,  agree=0.695, adj=0.011, (0 split)
## 
## Node number 244: 129 observations,    complexity param=0.0001696005
##   mean=0.6046512, MSE=0.2390481 
##   left son=488 (7 obs) right son=489 (122 obs)
##   Primary splits:
##       reward_length      < 10284    to the right, improve=0.05118580, (0 missing)
##       campaign_duration  < 46.075   to the right, improve=0.02726157, (0 missing)
##       usa                < 0.5      to the left,  improve=0.02309578, (0 missing)
##       description_length < 599      to the right, improve=0.02021475, (0 missing)
##       goal               < 825      to the right, improve=0.02011460, (0 missing)
## 
## Node number 245: 66 observations,    complexity param=0.0001712213
##   mean=0.8030303, MSE=0.1581726 
##   left son=490 (8 obs) right son=491 (58 obs)
##   Primary splits:
##       goal               < 3241.5   to the right, improve=0.15976430, (0 missing)
##       campaign_duration  < 30.165   to the left,  improve=0.08780842, (0 missing)
##       description_length < 1111     to the left,  improve=0.06781164, (0 missing)
##       mo_launched        splits as  LL----L--R--, improve=0.02584716, (0 missing)
##       reward_length      < 4376     to the left,  improve=0.01198424, (0 missing)
## 
## Node number 248: 136 observations,    complexity param=0.0002441824
##   mean=0.4852941, MSE=0.2497837 
##   left son=496 (84 obs) right son=497 (52 obs)
##   Primary splits:
##       goal               < 1600     to the right, improve=0.07040896, (0 missing)
##       reward_length      < 5917.5   to the left,  improve=0.03343859, (0 missing)
##       social_media_count splits as  RLLR,         improve=0.02849952, (0 missing)
##       campaign_duration  < 54.365   to the right, improve=0.01977660, (0 missing)
##       mo_launched        splits as  -R--R-LL----, improve=0.01488570, (0 missing)
##   Surrogate splits:
##       description_length < 441.5    to the right, agree=0.654, adj=0.096, (0 split)
##       campaign_duration  < 36.99    to the right, agree=0.640, adj=0.058, (0 split)
##       social_media_count splits as  LLRL,         agree=0.640, adj=0.058, (0 split)
##       reward_length      < 4261     to the right, agree=0.632, adj=0.038, (0 split)
##       usa                < 0.5      to the right, agree=0.625, adj=0.019, (0 split)
## 
## Node number 249: 306 observations,    complexity param=0.0002080595
##   mean=0.6437908, MSE=0.2293242 
##   left son=498 (47 obs) right son=499 (259 obs)
##   Primary splits:
##       reward_length      < 4533     to the left,  improve=0.024429810, (0 missing)
##       campaign_duration  < 52.615   to the right, improve=0.012669730, (0 missing)
##       description_length < 119      to the right, improve=0.007938087, (0 missing)
##       mo_launched        splits as  R-RL-L--LRLR, improve=0.006543603, (0 missing)
##       goal               < 2625     to the left,  improve=0.004949241, (0 missing)
##   Surrogate splits:
##       campaign_duration < 35.225   to the left,  agree=0.853, adj=0.043, (0 split)
## 
## Node number 250: 926 observations,    complexity param=0.0002110302
##   mean=0.7170626, MSE=0.2028838 
##   left son=500 (667 obs) right son=501 (259 obs)
##   Primary splits:
##       reward_length     < 7770.5   to the left,  improve=0.008520274, (0 missing)
##       goal              < 2775     to the right, improve=0.007516728, (0 missing)
##       campaign_duration < 29.965   to the right, improve=0.007352294, (0 missing)
##       mo_launched       splits as  RLRRLLLLRRLR, improve=0.006828036, (0 missing)
##       category          splits as  ----LRR---L--R-, improve=0.006697064, (0 missing)
##   Surrogate splits:
##       description_length < 1121.5   to the left,  agree=0.721, adj=0.004, (0 split)
## 
## Node number 251: 178 observations,    complexity param=0.000161035
##   mean=0.8483146, MSE=0.1286769 
##   left son=502 (60 obs) right son=503 (118 obs)
##   Primary splits:
##       mo_launched       splits as  RRRRLLRLRRRL, improve=0.06848519, (0 missing)
##       campaign_duration < 30.09    to the right, improve=0.03322076, (0 missing)
##       reward_length     < 7361.5   to the right, improve=0.02683946, (0 missing)
##       goal              < 220      to the right, improve=0.01583947, (0 missing)
##       usa               < 0.5      to the right, improve=0.01177777, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 10.01    to the left,  agree=0.680, adj=0.050, (0 split)
##       description_length < 216.5    to the left,  agree=0.669, adj=0.017, (0 split)
##       reward_length      < 4094.5   to the left,  agree=0.669, adj=0.017, (0 split)
## 
## Node number 252: 2933 observations,    complexity param=0.0003827771
##   mean=0.7654279, MSE=0.179548 
##   left son=504 (1646 obs) right son=505 (1287 obs)
##   Primary splits:
##       category           splits as  -RRRRRR--RLR-LR, improve=0.007080279, (0 missing)
##       mo_launched        splits as  RRRRLLLLLRRL, improve=0.004987033, (0 missing)
##       goal               < 645      to the right, improve=0.004745919, (0 missing)
##       description_length < 4645     to the left,  improve=0.003889508, (0 missing)
##       social_media_count splits as  RRLR, improve=0.002637772, (0 missing)
##   Surrogate splits:
##       description_length < 2909     to the left,  agree=0.594, adj=0.075, (0 split)
##       usa                < 0.5      to the right, agree=0.572, adj=0.026, (0 split)
##       reward_length      < 4857.5   to the right, agree=0.570, adj=0.021, (0 split)
##       goal               < 387.5    to the right, agree=0.564, adj=0.007, (0 split)
## 
## Node number 253: 1137 observations,    complexity param=0.0001696411
##   mean=0.8355321, MSE=0.1374182 
##   left son=506 (629 obs) right son=507 (508 obs)
##   Primary splits:
##       mo_launched        splits as  RRRLLRLRLLLR, improve=0.010576050, (0 missing)
##       goal               < 1075     to the right, improve=0.009079611, (0 missing)
##       category           splits as  -RR-RRLR-RR--RR, improve=0.007206909, (0 missing)
##       description_length < 3574     to the left,  improve=0.005425091, (0 missing)
##       social_media_count splits as  LRLL, improve=0.003815086, (0 missing)
##   Surrogate splits:
##       campaign_duration < 29.995   to the right, agree=0.583, adj=0.067, (0 split)
##       reward_length     < 19271.5  to the left,  agree=0.558, adj=0.010, (0 split)
##       category          splits as  -RL-LLLL-RL--LL, agree=0.555, adj=0.004, (0 split)
##       goal              < 62.5     to the right, agree=0.554, adj=0.002, (0 split)
## 
## Node number 254: 622 observations,    complexity param=0.0001982897
##   mean=0.8327974, MSE=0.1392459 
##   left son=508 (244 obs) right son=509 (378 obs)
##   Primary splits:
##       category           splits as  -RR-R-R---L--LR, improve=0.020441090, (0 missing)
##       mo_launched        splits as  RRRLLLLLRRLL, improve=0.017159190, (0 missing)
##       usa                < 0.5      to the left,  improve=0.011104950, (0 missing)
##       campaign_duration  < 28.32    to the right, improve=0.008704303, (0 missing)
##       social_media_count splits as  RRLR, improve=0.008444999, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  RRRRLRRRLRRR, agree=0.630, adj=0.057, (0 split)
##       social_media_count splits as  RRLL,         agree=0.627, adj=0.049, (0 split)
##       reward_length      < 6087     to the right, agree=0.616, adj=0.020, (0 split)
##       campaign_duration  < 29.405   to the right, agree=0.611, adj=0.008, (0 split)
##       description_length < 1134.5   to the left,  agree=0.611, adj=0.008, (0 split)
## 
## Node number 255: 829 observations,    complexity param=0.0001323152
##   mean=0.8998794, MSE=0.09009649 
##   left son=510 (521 obs) right son=511 (308 obs)
##   Primary splits:
##       campaign_duration  < 19.905   to the right, improve=0.013243330, (0 missing)
##       mo_launched        splits as  LRRRLLLRLLLR, improve=0.011075180, (0 missing)
##       description_length < 2559     to the left,  improve=0.010420010, (0 missing)
##       goal               < 3975     to the right, improve=0.007921336, (0 missing)
##       reward_length      < 12133    to the left,  improve=0.006010011, (0 missing)
##   Surrogate splits:
##       description_length < 1289.5   to the right, agree=0.676, adj=0.127, (0 split)
##       goal               < 1475     to the right, agree=0.673, adj=0.120, (0 split)
##       reward_length      < 19419.5  to the left,  agree=0.634, adj=0.016, (0 split)
##       social_media_count splits as  LLLR,         agree=0.630, adj=0.003, (0 split)
## 
## Node number 278: 93 observations,    complexity param=0.0001282829
##   mean=0.1505376, MSE=0.1278761 
##   left son=556 (55 obs) right son=557 (38 obs)
##   Primary splits:
##       mo_launched        splits as  LLRLRRRLRLLL, improve=0.06852748, (0 missing)
##       goal               < 10500    to the left,  improve=0.06078701, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.05491175, (0 missing)
##       reward_length      < 3787.5   to the left,  improve=0.05179058, (0 missing)
##       description_length < 1062.5   to the left,  improve=0.03635570, (0 missing)
##   Surrogate splits:
##       description_length < 999      to the left,  agree=0.613, adj=0.053, (0 split)
##       reward_length      < 3074     to the right, agree=0.613, adj=0.053, (0 split)
##       campaign_duration  < 21.185   to the right, agree=0.602, adj=0.026, (0 split)
##       goal               < 12999.5  to the left,  agree=0.602, adj=0.026, (0 split)
## 
## Node number 279: 92 observations,    complexity param=0.000238449
##   mean=0.4021739, MSE=0.2404301 
##   left son=558 (43 obs) right son=559 (49 obs)
##   Primary splits:
##       mo_launched        splits as  RLLLRRRLLRLR, improve=0.10500650, (0 missing)
##       description_length < 1993     to the right, improve=0.05697022, (0 missing)
##       campaign_duration  < 61.035   to the left,  improve=0.04792325, (0 missing)
##       category           splits as  L---------L--R-, improve=0.02138582, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.02027674, (0 missing)
##   Surrogate splits:
##       social_media_count splits as  RLRR, agree=0.609, adj=0.163, (0 split)
##       campaign_duration  < 29.98    to the left,  agree=0.576, adj=0.093, (0 split)
##       reward_length      < 4314.5   to the right, agree=0.576, adj=0.093, (0 split)
##       goal               < 10450    to the right, agree=0.565, adj=0.070, (0 split)
##       category           splits as  L---------R--R-, agree=0.554, adj=0.047, (0 split)
## 
## Node number 284: 129 observations
##   mean=0.1162791, MSE=0.1027582 
## 
## Node number 285: 208 observations,    complexity param=0.0001521461
##   mean=0.2644231, MSE=0.1945035 
##   left son=570 (67 obs) right son=571 (141 obs)
##   Primary splits:
##       video_status       < 0.5      to the left,  improve=0.032404250, (0 missing)
##       description_length < 3437.5   to the left,  improve=0.023947690, (0 missing)
##       reward_length      < 4050.5   to the left,  improve=0.014379080, (0 missing)
##       usa                < 0.5      to the left,  improve=0.010322510, (0 missing)
##       goal               < 4675     to the left,  improve=0.008328382, (0 missing)
## 
## Node number 286: 189 observations,    complexity param=0.0001589134
##   mean=0.2645503, MSE=0.1945634 
##   left son=572 (121 obs) right son=573 (68 obs)
##   Primary splits:
##       mo_launched       splits as  RRRLLLLLLRLR, improve=0.04008415, (0 missing)
##       video_status      < 0.5      to the left,  improve=0.02365818, (0 missing)
##       goal              < 7100     to the right, improve=0.02214733, (0 missing)
##       reward_length     < 3834.5   to the left,  improve=0.02096123, (0 missing)
##       campaign_duration < 29.98    to the right, improve=0.01748201, (0 missing)
##   Surrogate splits:
##       reward_length      < 3018     to the right, agree=0.661, adj=0.059, (0 split)
##       goal               < 7450     to the left,  agree=0.651, adj=0.029, (0 split)
##       description_length < 1477.5   to the left,  agree=0.651, adj=0.029, (0 split)
## 
## Node number 287: 284 observations,    complexity param=0.0003666117
##   mean=0.4788732, MSE=0.2495537 
##   left son=574 (190 obs) right son=575 (94 obs)
##   Primary splits:
##       mo_launched        splits as  LRLLLLRRRLLL, improve=0.05038731, (0 missing)
##       reward_length      < 4436.5   to the left,  improve=0.02457936, (0 missing)
##       campaign_duration  < 54.015   to the right, improve=0.02131323, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.01598140, (0 missing)
##       description_length < 2128     to the left,  improve=0.01550579, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 89.885   to the left,  agree=0.676, adj=0.021, (0 split)
##       social_media_count splits as  LLRL,         agree=0.676, adj=0.021, (0 split)
##       goal               < 4422     to the right, agree=0.676, adj=0.021, (0 split)
##       reward_length      < 3061.5   to the right, agree=0.673, adj=0.011, (0 split)
## 
## Node number 294: 18 observations
##   mean=0.1666667, MSE=0.1388889 
## 
## Node number 295: 25 observations,    complexity param=0.0001380458
##   mean=0.52, MSE=0.2496 
##   left son=590 (7 obs) right son=591 (18 obs)
##   Primary splits:
##       reward_length      < 4167     to the right, improve=0.22161170, (0 missing)
##       description_length < 1498.5   to the right, improve=0.08552096, (0 missing)
##       campaign_duration  < 54.665   to the right, improve=0.03963989, (0 missing)
##       mo_launched        splits as  --L-----RRL-, improve=0.01709402, (0 missing)
##       goal               < 12250    to the right, improve=0.01302401, (0 missing)
##   Surrogate splits:
##       social_media_count splits as  RLR-,         agree=0.8, adj=0.286, (0 split)
##       description_length < 949.5    to the left,  agree=0.8, adj=0.286, (0 split)
## 
## Node number 298: 39 observations,    complexity param=0.000101638
##   mean=0.2307692, MSE=0.1775148 
##   left son=596 (32 obs) right son=597 (7 obs)
##   Primary splits:
##       campaign_duration  < 25.425   to the right, improve=0.14300600, (0 missing)
##       reward_length      < 2822.5   to the left,  improve=0.10140350, (0 missing)
##       mo_launched        splits as  -R-L-LL-R-RR, improve=0.05079365, (0 missing)
##       description_length < 983.5    to the right, improve=0.03342593, (0 missing)
##       video_status       < 0.5      to the right, improve=0.02633745, (0 missing)
##   Surrogate splits:
##       mo_launched splits as  -R-L-LL-L-LL, agree=0.846, adj=0.143, (0 split)
## 
## Node number 299: 30 observations,    complexity param=0.0001709784
##   mean=0.5666667, MSE=0.2455556 
##   left son=598 (7 obs) right son=599 (23 obs)
##   Primary splits:
##       description_length < 679      to the left,  improve=0.22261880, (0 missing)
##       reward_length      < 2682.5   to the right, improve=0.14914810, (0 missing)
##       campaign_duration  < 35.48    to the right, improve=0.10457830, (0 missing)
##       goal               < 6200     to the right, improve=0.09783311, (0 missing)
##       mo_launched        splits as  -L-R-LR-R-LL, improve=0.07765029, (0 missing)
##   Surrogate splits:
##       social_media_count splits as  RLR-, agree=0.8, adj=0.143, (0 split)
## 
## Node number 300: 27 observations
##   mean=0.2222222, MSE=0.1728395 
## 
## Node number 301: 7 observations
##   mean=0.8571429, MSE=0.122449 
## 
## Node number 302: 28 observations,    complexity param=0.0001533001
##   mean=0.4642857, MSE=0.2487245 
##   left son=604 (8 obs) right son=605 (20 obs)
##   Primary splits:
##       campaign_duration  < 43.505   to the right, improve=0.18512820, (0 missing)
##       mo_launched        splits as  RRRLRRLLLRRL, improve=0.15601140, (0 missing)
##       goal               < 5800     to the left,  improve=0.12410260, (0 missing)
##       reward_length      < 4042     to the left,  improve=0.07384615, (0 missing)
##       social_media_count splits as  RL--,         improve=0.03265857, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  RRRRRRRLRRRL, agree=0.786, adj=0.25, (0 split)
##       description_length < 277.5    to the left,  agree=0.786, adj=0.25, (0 split)
## 
## Node number 303: 35 observations,    complexity param=0.000115234
##   mean=0.7714286, MSE=0.1763265 
##   left son=606 (13 obs) right son=607 (22 obs)
##   Primary splits:
##       mo_launched        splits as  RLRLLRLRRRR-, improve=0.18188290, (0 missing)
##       description_length < 1519     to the left,  improve=0.10256410, (0 missing)
##       campaign_duration  < 46.76    to the right, improve=0.09148465, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.05671296, (0 missing)
##       reward_length      < 4196     to the right, improve=0.05123051, (0 missing)
##   Surrogate splits:
##       reward_length      < 3881     to the left,  agree=0.686, adj=0.154, (0 split)
##       social_media_count splits as  RRL-, agree=0.657, adj=0.077, (0 split)
##       category           splits as  --R-R-R-------L, agree=0.657, adj=0.077, (0 split)
##       goal               < 6250     to the right, agree=0.657, adj=0.077, (0 split)
## 
## Node number 312: 45 observations,    complexity param=0.0001997792
##   mean=0.1777778, MSE=0.1461728 
##   left son=624 (37 obs) right son=625 (8 obs)
##   Primary splits:
##       mo_launched        splits as  RLLLLRLLLLLR, improve=0.29584780, (0 missing)
##       campaign_duration  < 44.22    to the left,  improve=0.18170070, (0 missing)
##       reward_length      < 3284.5   to the right, improve=0.06177606, (0 missing)
##       social_media_count splits as  LRL-,         improve=0.05753515, (0 missing)
##       description_length < 1890     to the left,  improve=0.04674945, (0 missing)
##   Surrogate splits:
##       reward_length < 1660     to the right, agree=0.867, adj=0.25, (0 split)
## 
## Node number 313: 121 observations,    complexity param=0.0001666334
##   mean=0.5619835, MSE=0.246158 
##   left son=626 (71 obs) right son=627 (50 obs)
##   Primary splits:
##       description_length < 2740     to the left,  improve=0.05449540, (0 missing)
##       reward_length      < 4740.5   to the left,  improve=0.04785862, (0 missing)
##       mo_launched        splits as  RRRRRRRRRLRL, improve=0.03711626, (0 missing)
##       campaign_duration  < 20.405   to the right, improve=0.02817942, (0 missing)
##       goal               < 12782    to the right, improve=0.02317020, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  LLRRLLLLLRLL, agree=0.653, adj=0.16, (0 split)
##       campaign_duration  < 20.925   to the right, agree=0.628, adj=0.10, (0 split)
##       reward_length      < 4525.5   to the left,  agree=0.620, adj=0.08, (0 split)
##       video_status       < 0.5      to the right, agree=0.603, adj=0.04, (0 split)
##       social_media_count splits as  LLLR,         agree=0.595, adj=0.02, (0 split)
## 
## Node number 314: 8 observations
##   mean=0.125, MSE=0.109375 
## 
## Node number 315: 215 observations,    complexity param=0.0001686254
##   mean=0.7162791, MSE=0.2032234 
##   left son=630 (29 obs) right son=631 (186 obs)
##   Primary splits:
##       video_status       < 0.5      to the left,  improve=0.03039359, (0 missing)
##       mo_launched        splits as  RRRRRRRRRLRR, improve=0.02837012, (0 missing)
##       description_length < 3661.5   to the left,  improve=0.02317712, (0 missing)
##       campaign_duration  < 59.98    to the right, improve=0.01745834, (0 missing)
##       reward_length      < 3252     to the right, improve=0.01171046, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 11.575   to the left,  agree=0.874, adj=0.069, (0 split)
##       description_length < 1761.5   to the left,  agree=0.874, adj=0.069, (0 split)
## 
## Node number 322: 342 observations,    complexity param=0.000131372
##   mean=0.1374269, MSE=0.1185407 
##   left son=644 (147 obs) right son=645 (195 obs)
##   Primary splits:
##       mo_launched        splits as  LLRRLRRLRRLL, improve=0.024918490, (0 missing)
##       description_length < 962      to the left,  improve=0.020294490, (0 missing)
##       goal               < 12170    to the right, improve=0.017892500, (0 missing)
##       reward_length      < 6674.5   to the left,  improve=0.010564440, (0 missing)
##       campaign_duration  < 33.32    to the left,  improve=0.006759421, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 22.09    to the left,  agree=0.588, adj=0.041, (0 split)
##       usa                < 0.5      to the left,  agree=0.582, adj=0.027, (0 split)
##       reward_length      < 5085.5   to the left,  agree=0.582, adj=0.027, (0 split)
##       description_length < 1835     to the right, agree=0.579, adj=0.020, (0 split)
##       social_media_count splits as  RRRL,         agree=0.573, adj=0.007, (0 split)
## 
## Node number 323: 804 observations,    complexity param=0.0002576522
##   mean=0.2972637, MSE=0.208898 
##   left son=646 (330 obs) right son=647 (474 obs)
##   Primary splits:
##       goal               < 15888.5  to the right, improve=0.014943100, (0 missing)
##       mo_launched        splits as  LLRRLRLLRLLL, improve=0.014499750, (0 missing)
##       reward_length      < 7192.5   to the left,  improve=0.011850040, (0 missing)
##       campaign_duration  < 59.92    to the right, improve=0.007146704, (0 missing)
##       description_length < 2676.5   to the left,  improve=0.006222505, (0 missing)
##   Surrogate splits:
##       category           splits as  R-------R---RL-, agree=0.602, adj=0.030, (0 split)
##       mo_launched        splits as  LRRRRRRLRRRR, agree=0.596, adj=0.015, (0 split)
##       description_length < 4622.5   to the right, agree=0.595, adj=0.012, (0 split)
##       reward_length      < 11030    to the right, agree=0.595, adj=0.012, (0 split)
## 
## Node number 324: 233 observations,    complexity param=0.0002622676
##   mean=0.1974249, MSE=0.1584483 
##   left son=648 (175 obs) right son=649 (58 obs)
##   Primary splits:
##       reward_length      < 10119    to the left,  improve=0.06919875, (0 missing)
##       description_length < 6691.5   to the left,  improve=0.03242012, (0 missing)
##       mo_launched        splits as  RLRRRLRRRLRL, improve=0.02983729, (0 missing)
##       social_media_count splits as  LLR-,         improve=0.02734348, (0 missing)
##       campaign_duration  < 34.665   to the right, improve=0.02102710, (0 missing)
##   Surrogate splits:
##       social_media_count splits as  LLR-,         agree=0.764, adj=0.052, (0 split)
##       goal               < 725000   to the left,  agree=0.760, adj=0.034, (0 split)
##       description_length < 15944.5  to the left,  agree=0.760, adj=0.034, (0 split)
## 
## Node number 325: 462 observations,    complexity param=0.0004474458
##   mean=0.3636364, MSE=0.231405 
##   left son=650 (241 obs) right son=651 (221 obs)
##   Primary splits:
##       mo_launched        splits as  LRLRLLRLRRLR, improve=0.04157491, (0 missing)
##       reward_length      < 8586     to the left,  improve=0.02820326, (0 missing)
##       campaign_duration  < 29.73    to the right, improve=0.02335907, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.01959351, (0 missing)
##       social_media_count splits as  RRLR,         improve=0.01358977, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 30.02    to the left,  agree=0.595, adj=0.154, (0 split)
##       description_length < 4832.5   to the right, agree=0.541, adj=0.041, (0 split)
##       social_media_count splits as  LRLL, agree=0.539, adj=0.036, (0 split)
##       category           splits as  L-------R---L--, agree=0.530, adj=0.018, (0 split)
##       goal               < 15275    to the right, agree=0.530, adj=0.018, (0 split)
## 
## Node number 326: 32 observations
##   mean=0.125, MSE=0.109375 
## 
## Node number 327: 264 observations,    complexity param=0.0002503922
##   mean=0.4924242, MSE=0.2499426 
##   left son=654 (236 obs) right son=655 (28 obs)
##   Primary splits:
##       goal               < 10750    to the right, improve=0.03149312, (0 missing)
##       mo_launched        splits as  RLLLRLLRLRLR, improve=0.02531889, (0 missing)
##       social_media_count splits as  LRRL,         improve=0.02494852, (0 missing)
##       reward_length      < 5931     to the left,  improve=0.02460955, (0 missing)
##       campaign_duration  < 55.56    to the right, improve=0.01418690, (0 missing)
## 
## Node number 328: 192 observations,    complexity param=0.0001976813
##   mean=0.171875, MSE=0.142334 
##   left son=656 (164 obs) right son=657 (28 obs)
##   Primary splits:
##       description_length < 4654.5   to the left,  improve=0.04117236, (0 missing)
##       reward_length      < 8951.5   to the left,  improve=0.02960168, (0 missing)
##       category           splits as  L-------R---LL-, improve=0.02309307, (0 missing)
##       goal               < 5350     to the left,  improve=0.02195619, (0 missing)
##       mo_launched        splits as  LLLRLLLLLRLL, improve=0.02029864, (0 missing)
## 
## Node number 329: 8 observations
##   mean=0.75, MSE=0.1875 
## 
## Node number 330: 7 observations
##   mean=0.1428571, MSE=0.122449 
## 
## Node number 331: 23 observations,    complexity param=0.0001406001
##   mean=0.6956522, MSE=0.2117202 
##   left son=662 (14 obs) right son=663 (9 obs)
##   Primary splits:
##       category           splits as  R-------R---LL-, improve=0.28125000, (0 missing)
##       reward_length      < 5835     to the left,  improve=0.14740110, (0 missing)
##       campaign_duration  < 24.465   to the left,  improve=0.11337870, (0 missing)
##       mo_launched        splits as  R-RLRL-LL--L, improve=0.08102679, (0 missing)
##       description_length < 4977.5   to the left,  improve=0.08102679, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  R-RLLR-LL--L, agree=0.826, adj=0.556, (0 split)
##       campaign_duration  < 25.95    to the left,  agree=0.739, adj=0.333, (0 split)
##       description_length < 3857.5   to the left,  agree=0.696, adj=0.222, (0 split)
##       goal               < 5745     to the right, agree=0.652, adj=0.111, (0 split)
## 
## Node number 332: 755 observations,    complexity param=0.0002063601
##   mean=0.392053, MSE=0.2383474 
##   left son=664 (357 obs) right son=665 (398 obs)
##   Primary splits:
##       mo_launched        splits as  LRLRRLLRRLRL, improve=0.010618140, (0 missing)
##       description_length < 899.5    to the left,  improve=0.009256839, (0 missing)
##       usa                < 0.5      to the left,  improve=0.008819172, (0 missing)
##       campaign_duration  < 20.225   to the left,  improve=0.007364340, (0 missing)
##       reward_length      < 6725.5   to the left,  improve=0.006030047, (0 missing)
##   Surrogate splits:
##       description_length < 1124.5   to the left,  agree=0.543, adj=0.034, (0 split)
##       category           splits as  --------L---R--, agree=0.539, adj=0.025, (0 split)
##       campaign_duration  < 20.1     to the left,  agree=0.536, adj=0.020, (0 split)
##       goal               < 7050     to the right, agree=0.534, adj=0.014, (0 split)
##       reward_length      < 4991     to the left,  agree=0.532, adj=0.011, (0 split)
## 
## Node number 333: 436 observations,    complexity param=0.0003023313
##   mean=0.5137615, MSE=0.2498106 
##   left son=666 (241 obs) right son=667 (195 obs)
##   Primary splits:
##       mo_launched        splits as  LRRRRRLLLLLL, improve=0.02703852, (0 missing)
##       description_length < 4160.5   to the left,  improve=0.01898601, (0 missing)
##       goal               < 4560     to the right, improve=0.01386496, (0 missing)
##       reward_length      < 8944     to the right, improve=0.01367918, (0 missing)
##       campaign_duration  < 34.335   to the right, improve=0.01153294, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 29.98    to the right, agree=0.583, adj=0.067, (0 split)
##       reward_length      < 5456.5   to the right, agree=0.583, adj=0.067, (0 split)
##       goal               < 8050     to the left,  agree=0.562, adj=0.021, (0 split)
##       description_length < 5807.5   to the left,  agree=0.562, adj=0.021, (0 split)
## 
## Node number 334: 180 observations,    complexity param=0.0002226012
##   mean=0.4611111, MSE=0.2484877 
##   left son=668 (164 obs) right son=669 (16 obs)
##   Primary splits:
##       campaign_duration  < 59.25    to the left,  improve=0.04847830, (0 missing)
##       reward_length      < 9161     to the right, improve=0.02553919, (0 missing)
##       goal               < 8002.5   to the right, improve=0.01988603, (0 missing)
##       category           splits as  R-------R---LL-, improve=0.01860898, (0 missing)
##       description_length < 9830     to the left,  improve=0.01545827, (0 missing)
## 
## Node number 335: 221 observations,    complexity param=0.0001872635
##   mean=0.6696833, MSE=0.2212076 
##   left son=670 (11 obs) right son=671 (210 obs)
##   Primary splits:
##       reward_length      < 11339.5  to the right, improve=0.03731282, (0 missing)
##       campaign_duration  < 59.72    to the right, improve=0.03063917, (0 missing)
##       description_length < 3380     to the left,  improve=0.02430216, (0 missing)
##       mo_launched        splits as  LLRL---LRL--, improve=0.01687957, (0 missing)
##       category           splits as  R-------R---LR-, improve=0.01520770, (0 missing)
## 
## Node number 338: 34 observations
##   mean=0.1176471, MSE=0.1038062 
## 
## Node number 339: 44 observations
##   mean=0.3636364, MSE=0.231405 
## 
## Node number 340: 337 observations,    complexity param=0.0002041249
##   mean=0.3620178, MSE=0.2309609 
##   left son=680 (115 obs) right son=681 (222 obs)
##   Primary splits:
##       mo_launched        splits as  RLRLRRRRRLRL, improve=0.02294685, (0 missing)
##       description_length < 5913.5   to the left,  improve=0.02047110, (0 missing)
##       goal               < 41000    to the right, improve=0.01833214, (0 missing)
##       campaign_duration  < 59.03    to the right, improve=0.01705394, (0 missing)
##       reward_length      < 13418.5  to the left,  improve=0.01326929, (0 missing)
##   Surrogate splits:
##       campaign_duration < 57.165   to the right, agree=0.668, adj=0.026, (0 split)
##       reward_length     < 21347.5  to the right, agree=0.668, adj=0.026, (0 split)
## 
## Node number 341: 92 observations,    complexity param=0.0003521671
##   mean=0.6195652, MSE=0.2357042 
##   left son=682 (45 obs) right son=683 (47 obs)
##   Primary splits:
##       mo_launched       splits as  RLRLLRRRRLLL, improve=0.15819430, (0 missing)
##       goal              < 105000   to the right, improve=0.04577540, (0 missing)
##       reward_length     < 12571.5  to the left,  improve=0.04577540, (0 missing)
##       campaign_duration < 29.98    to the left,  improve=0.03894189, (0 missing)
##       usa               < 0.5      to the left,  improve=0.03773800, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 33.71    to the right, agree=0.652, adj=0.289, (0 split)
##       reward_length      < 15572.5  to the right, agree=0.609, adj=0.200, (0 split)
##       description_length < 10582    to the right, agree=0.598, adj=0.178, (0 split)
##       goal               < 162500   to the right, agree=0.587, adj=0.156, (0 split)
##       social_media_count splits as  RRLL,         agree=0.533, adj=0.044, (0 split)
## 
## Node number 342: 108 observations,    complexity param=0.000200424
##   mean=0.537037, MSE=0.2486283 
##   left son=684 (97 obs) right son=685 (11 obs)
##   Primary splits:
##       goal               < 33750    to the right, improve=0.06313674, (0 missing)
##       description_length < 12705    to the left,  improve=0.05896209, (0 missing)
##       reward_length      < 26949    to the left,  improve=0.04587900, (0 missing)
##       category           splits as  L-------R---RR-, improve=0.04142241, (0 missing)
##       social_media_count splits as  RLLR, improve=0.03787192, (0 missing)
## 
## Node number 343: 42 observations
##   mean=0.8333333, MSE=0.1388889 
## 
## Node number 344: 375 observations,    complexity param=0.0002230332
##   mean=0.44, MSE=0.2464 
##   left son=688 (311 obs) right son=689 (64 obs)
##   Primary splits:
##       reward_length      < 19325.5  to the left,  improve=0.019742820, (0 missing)
##       mo_launched        splits as  LLRRRRLRLLLL, improve=0.012025010, (0 missing)
##       description_length < 827      to the right, improve=0.011386310, (0 missing)
##       usa                < 0.5      to the left,  improve=0.008254070, (0 missing)
##       goal               < 6775     to the right, improve=0.007571376, (0 missing)
##   Surrogate splits:
##       campaign_duration < 89.985   to the left,  agree=0.832, adj=0.016, (0 split)
## 
## Node number 345: 63 observations,    complexity param=0.0001134027
##   mean=0.6507937, MSE=0.2272613 
##   left son=690 (47 obs) right son=691 (16 obs)
##   Primary splits:
##       mo_launched        splits as  LLLLLLLLLRRL, improve=0.07529957, (0 missing)
##       campaign_duration  < 19.935   to the left,  improve=0.05960174, (0 missing)
##       reward_length      < 19670.5  to the right, improve=0.05675297, (0 missing)
##       description_length < 1797     to the left,  improve=0.04868222, (0 missing)
##       goal               < 6850     to the right, improve=0.04470353, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 29.33    to the left,  agree=0.762, adj=0.062, (0 split)
##       usa                < 0.5      to the right, agree=0.762, adj=0.062, (0 split)
##       social_media_count splits as  LLR-,         agree=0.762, adj=0.062, (0 split)
##       description_length < 4568.5   to the left,  agree=0.762, adj=0.062, (0 split)
## 
## Node number 346: 296 observations,    complexity param=0.0001788184
##   mean=0.5506757, MSE=0.247432 
##   left son=692 (260 obs) right son=693 (36 obs)
##   Primary splits:
##       campaign_duration  < 27.835   to the right, improve=0.022232790, (0 missing)
##       reward_length      < 22066.5  to the left,  improve=0.020048470, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.016279200, (0 missing)
##       description_length < 4778.5   to the right, improve=0.011808660, (0 missing)
##       goal               < 7635     to the right, improve=0.009077361, (0 missing)
## 
## Node number 347: 132 observations,    complexity param=0.0002238739
##   mean=0.75, MSE=0.1875 
##   left son=694 (84 obs) right son=695 (48 obs)
##   Primary splits:
##       goal               < 7999.5   to the right, improve=0.06481481, (0 missing)
##       reward_length      < 19151.5  to the left,  improve=0.05122531, (0 missing)
##       description_length < 9881     to the right, improve=0.04841937, (0 missing)
##       campaign_duration  < 39.965   to the right, improve=0.03292181, (0 missing)
##       usa                < 0.5      to the left,  improve=0.02028550, (0 missing)
##   Surrogate splits:
##       campaign_duration < 19.5     to the right, agree=0.652, adj=0.042, (0 split)
##       video_status      < 0.5      to the right, agree=0.644, adj=0.021, (0 split)
##       reward_length     < 31914.5  to the left,  agree=0.644, adj=0.021, (0 split)
## 
## Node number 348: 221 observations,    complexity param=0.0003724196
##   mean=0.5746606, MSE=0.2444258 
##   left son=696 (188 obs) right son=697 (33 obs)
##   Primary splits:
##       description_length < 13858.5  to the left,  improve=0.08031936, (0 missing)
##       social_media_count splits as  LRL-,         improve=0.03194499, (0 missing)
##       mo_launched        splits as  LLLLRRRRRRRL, improve=0.03003035, (0 missing)
##       campaign_duration  < 31.665   to the left,  improve=0.02452190, (0 missing)
##       usa                < 0.5      to the left,  improve=0.02376350, (0 missing)
## 
## Node number 349: 247 observations,    complexity param=0.0002238936
##   mean=0.7327935, MSE=0.1958072 
##   left son=698 (124 obs) right son=699 (123 obs)
##   Primary splits:
##       mo_launched        splits as  RLLRRLRLRLRR, improve=0.03953809, (0 missing)
##       reward_length      < 12186    to the left,  improve=0.03282143, (0 missing)
##       campaign_duration  < 33.64    to the left,  improve=0.02959309, (0 missing)
##       social_media_count splits as  LRL-,         improve=0.01786298, (0 missing)
##       usa                < 0.5      to the left,  improve=0.01459755, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 31.495   to the left,  agree=0.571, adj=0.138, (0 split)
##       social_media_count splits as  LRR-,         agree=0.543, adj=0.081, (0 split)
##       reward_length      < 13773    to the right, agree=0.543, adj=0.081, (0 split)
##       goal               < 6400     to the left,  agree=0.538, adj=0.073, (0 split)
##       description_length < 3121     to the left,  agree=0.534, adj=0.065, (0 split)
## 
## Node number 350: 79 observations,    complexity param=0.0001451126
##   mean=0.6962025, MSE=0.2115046 
##   left son=700 (24 obs) right son=701 (55 obs)
##   Primary splits:
##       mo_launched        splits as  LRRLRRLRRRLR, improve=0.07942149, (0 missing)
##       description_length < 15254.5  to the left,  improve=0.07446136, (0 missing)
##       reward_length      < 35451.5  to the left,  improve=0.04916773, (0 missing)
##       social_media_count splits as  LLRR,         improve=0.04916773, (0 missing)
##       goal               < 17250    to the left,  improve=0.03292448, (0 missing)
##   Surrogate splits:
##       usa               < 0.5      to the left,  agree=0.759, adj=0.208, (0 split)
##       goal              < 18750    to the left,  agree=0.722, adj=0.083, (0 split)
##       campaign_duration < 28.395   to the left,  agree=0.709, adj=0.042, (0 split)
##       reward_length     < 19501.5  to the left,  agree=0.709, adj=0.042, (0 split)
## 
## Node number 351: 151 observations,    complexity param=0.0001518884
##   mean=0.8741722, MSE=0.1099952 
##   left son=702 (33 obs) right son=703 (118 obs)
##   Primary splits:
##       description_length < 4863.5   to the left,  improve=0.07983585, (0 missing)
##       mo_launched        splits as  LLRLLLLRLRLL, improve=0.02556256, (0 missing)
##       goal               < 6250     to the right, improve=0.01759215, (0 missing)
##       usa                < 0.5      to the left,  improve=0.01595585, (0 missing)
##       reward_length      < 18051.5  to the right, improve=0.01470914, (0 missing)
##   Surrogate splits:
##       campaign_duration < 59.98    to the right, agree=0.795, adj=0.061, (0 split)
## 
## Node number 354: 64 observations,    complexity param=0.0001045788
##   mean=0.171875, MSE=0.142334 
##   left son=708 (27 obs) right son=709 (37 obs)
##   Primary splits:
##       mo_launched        splits as  LLLLRRLRRRLR, improve=0.09321328, (0 missing)
##       reward_length      < 18405    to the left,  improve=0.09321328, (0 missing)
##       description_length < 1529     to the left,  improve=0.07507025, (0 missing)
##       goal               < 112500   to the right, improve=0.05881654, (0 missing)
##       social_media_count splits as  LRLL,         improve=0.01949166, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 29.98    to the left,  agree=0.688, adj=0.259, (0 split)
##       social_media_count splits as  RRLL, agree=0.656, adj=0.185, (0 split)
##       description_length < 461      to the left,  agree=0.656, adj=0.185, (0 split)
##       category           splits as  ------R---L----, agree=0.625, adj=0.111, (0 split)
##       goal               < 58500    to the left,  agree=0.625, adj=0.111, (0 split)
## 
## Node number 355: 19 observations
##   mean=0.4210526, MSE=0.2437673 
## 
## Node number 356: 182 observations,    complexity param=0.0002294033
##   mean=0.2197802, MSE=0.1714769 
##   left son=712 (56 obs) right son=713 (126 obs)
##   Primary splits:
##       goal               < 118500   to the right, improve=0.07160113, (0 missing)
##       reward_length      < 8067     to the left,  improve=0.02902262, (0 missing)
##       mo_launched        splits as  RLRL--LLRRRL, improve=0.02764999, (0 missing)
##       campaign_duration  < 35.175   to the right, improve=0.02010822, (0 missing)
##       description_length < 12078.5  to the right, improve=0.01556602, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 29.965   to the left,  agree=0.709, adj=0.054, (0 split)
##       video_status       < 0.5      to the left,  agree=0.709, adj=0.054, (0 split)
##       description_length < 4668     to the left,  agree=0.698, adj=0.018, (0 split)
##       reward_length      < 5366.5   to the left,  agree=0.698, adj=0.018, (0 split)
## 
## Node number 357: 28 observations,    complexity param=0.0001939548
##   mean=0.5357143, MSE=0.2487245 
##   left son=714 (8 obs) right son=715 (20 obs)
##   Primary splits:
##       description_length < 12526    to the right, improve=0.2712821, (0 missing)
##       goal               < 175000   to the right, improve=0.2068376, (0 missing)
##       mo_launched        splits as  R--L--RLLRLL, improve=0.1560114, (0 missing)
##       campaign_duration  < 34.96    to the right, improve=0.1312821, (0 missing)
##       social_media_count splits as  LRRL,         improve=0.0954614, (0 missing)
##   Surrogate splits:
##       reward_length      < 60278.5  to the right, agree=0.821, adj=0.375, (0 split)
##       goal               < 225000   to the right, agree=0.786, adj=0.250, (0 split)
##       social_media_count splits as  RRRL,         agree=0.750, adj=0.125, (0 split)
## 
## Node number 368: 296 observations,    complexity param=0.0002205681
##   mean=0.1858108, MSE=0.1512852 
##   left son=736 (94 obs) right son=737 (202 obs)
##   Primary splits:
##       reward_length      < 6735.5   to the left,  improve=0.03813325, (0 missing)
##       campaign_duration  < 34.04    to the right, improve=0.03671156, (0 missing)
##       mo_launched        splits as  RLRLLRLLRLLL, improve=0.02928548, (0 missing)
##       description_length < 1801.5   to the left,  improve=0.02351610, (0 missing)
##       goal               < 25500    to the right, improve=0.02183733, (0 missing)
##   Surrogate splits:
##       video_status       < 0.5      to the left,  agree=0.689, adj=0.021, (0 split)
##       description_length < 79.5     to the left,  agree=0.689, adj=0.021, (0 split)
##       campaign_duration  < 13.995   to the left,  agree=0.686, adj=0.011, (0 split)
## 
## Node number 369: 7 observations
##   mean=0.8571429, MSE=0.122449 
## 
## Node number 370: 19 observations
##   mean=0.4210526, MSE=0.2437673 
## 
## Node number 371: 15 observations
##   mean=0.8, MSE=0.16 
## 
## Node number 372: 119 observations,    complexity param=0.0002083715
##   mean=0.210084, MSE=0.1659487 
##   left son=744 (110 obs) right son=745 (9 obs)
##   Primary splits:
##       reward_length      < 13276    to the left,  improve=0.10278140, (0 missing)
##       campaign_duration  < 28.625   to the right, improve=0.06903109, (0 missing)
##       mo_launched        splits as  RRRLLLRLRRLL, improve=0.06190189, (0 missing)
##       social_media_count splits as  RRLL,         improve=0.02439977, (0 missing)
##       description_length < 438.5    to the right, improve=0.01993988, (0 missing)
## 
## Node number 373: 59 observations,    complexity param=0.0001631107
##   mean=0.4745763, MSE=0.2493536 
##   left son=746 (41 obs) right son=747 (18 obs)
##   Primary splits:
##       goal               < 5502.5   to the right, improve=0.10797800, (0 missing)
##       mo_launched        splits as  LRRLRRRRLLRR, improve=0.08514583, (0 missing)
##       reward_length      < 5061.5   to the right, improve=0.06636201, (0 missing)
##       description_length < 1280.5   to the left,  improve=0.04995328, (0 missing)
##       campaign_duration  < 30.02    to the left,  improve=0.02726712, (0 missing)
##   Surrogate splits:
##       category          splits as  --R---L--------, agree=0.729, adj=0.111, (0 split)
##       campaign_duration < 21.02    to the right, agree=0.712, adj=0.056, (0 split)
## 
## Node number 374: 1313 observations,    complexity param=0.0005292483
##   mean=0.5270373, MSE=0.249269 
##   left son=748 (426 obs) right son=749 (887 obs)
##   Primary splits:
##       goal               < 8531.5   to the right, improve=0.015751560, (0 missing)
##       category           splits as  -RR-RRLR--L---R, improve=0.013030630, (0 missing)
##       campaign_duration  < 42.015   to the right, improve=0.010106930, (0 missing)
##       description_length < 1139.5   to the left,  improve=0.009720534, (0 missing)
##       reward_length      < 5893.5   to the left,  improve=0.007024439, (0 missing)
##   Surrogate splits:
##       category           splits as  -RR-RRRL--R---R, agree=0.678, adj=0.007, (0 split)
##       reward_length      < 9482.5   to the right, agree=0.678, adj=0.007, (0 split)
##       description_length < 1891.5   to the right, agree=0.677, adj=0.005, (0 split)
## 
## Node number 375: 586 observations,    complexity param=0.0002656012
##   mean=0.6774744, MSE=0.2185028 
##   left son=750 (203 obs) right son=751 (383 obs)
##   Primary splits:
##       description_length < 1127.5   to the left,  improve=0.020205640, (0 missing)
##       goal               < 10200    to the right, improve=0.017227920, (0 missing)
##       reward_length      < 11023.5  to the right, improve=0.016529260, (0 missing)
##       mo_launched        splits as  RLLLRLRLRRRR, improve=0.013979910, (0 missing)
##       usa                < 0.5      to the left,  improve=0.008454397, (0 missing)
##   Surrogate splits:
##       category      splits as  --R-RRR---RL--R, agree=0.655, adj=0.005, (0 split)
##       reward_length < 9638     to the left,  agree=0.655, adj=0.005, (0 split)
## 
## Node number 376: 1289 observations,    complexity param=0.001192209
##   mean=0.4965089, MSE=0.2499878 
##   left son=752 (1066 obs) right son=753 (223 obs)
##   Primary splits:
##       reward_length      < 16657    to the left,  improve=0.036039420, (0 missing)
##       goal               < 25381    to the right, improve=0.018418130, (0 missing)
##       description_length < 2673.5   to the left,  improve=0.009521202, (0 missing)
##       campaign_duration  < 54.48    to the right, improve=0.008823899, (0 missing)
##       mo_launched        splits as  LRLLLLLLLLRR, improve=0.006288269, (0 missing)
## 
## Node number 377: 685 observations,    complexity param=0.0003309583
##   mean=0.6948905, MSE=0.2120177 
##   left son=754 (108 obs) right son=755 (577 obs)
##   Primary splits:
##       category           splits as  ------R---L----, improve=0.021998050, (0 missing)
##       reward_length      < 18276    to the left,  improve=0.018109890, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.008814372, (0 missing)
##       social_media_count splits as  RRLR, improve=0.007137480, (0 missing)
##       campaign_duration  < 47.505   to the right, improve=0.007131324, (0 missing)
##   Surrogate splits:
##       social_media_count splits as  RRRL, agree=0.848, adj=0.037, (0 split)
## 
## Node number 378: 1032 observations,    complexity param=0.0003923393
##   mean=0.6647287, MSE=0.2228645 
##   left son=756 (742 obs) right son=757 (290 obs)
##   Primary splits:
##       description_length < 4238.5   to the left,  improve=0.016616460, (0 missing)
##       mo_launched        splits as  RRLRLRLLLLRR, improve=0.005683439, (0 missing)
##       usa                < 0.5      to the left,  improve=0.004787846, (0 missing)
##       category           splits as  ------R---L----, improve=0.003489187, (0 missing)
##       reward_length      < 15032    to the left,  improve=0.003025141, (0 missing)
##   Surrogate splits:
##       reward_length < 19378.5  to the left,  agree=0.73, adj=0.038, (0 split)
## 
## Node number 379: 2444 observations,    complexity param=0.0002802057
##   mean=0.7446809, MSE=0.1901313 
##   left son=758 (108 obs) right son=759 (2336 obs)
##   Primary splits:
##       video_status      < 0.5      to the left,  improve=0.005624562, (0 missing)
##       campaign_duration < 30.305   to the left,  improve=0.004934652, (0 missing)
##       goal              < 9052     to the right, improve=0.004620397, (0 missing)
##       reward_length     < 7302.5   to the left,  improve=0.004531334, (0 missing)
##       usa               < 0.5      to the left,  improve=0.003880076, (0 missing)
## 
## Node number 380: 12 observations
##   mean=0.3333333, MSE=0.2222222 
## 
## Node number 381: 15 observations
##   mean=0.8, MSE=0.16 
## 
## Node number 382: 29 observations,    complexity param=0.0001317974
##   mean=0.6896552, MSE=0.2140309 
##   left son=764 (16 obs) right son=765 (13 obs)
##   Primary splits:
##       description_length < 2069.5   to the right, improve=0.20683760, (0 missing)
##       mo_launched        splits as  LRRRLLRLLRLR, improve=0.20250000, (0 missing)
##       goal               < 14000    to the left,  improve=0.14318180, (0 missing)
##       campaign_duration  < 35.915   to the left,  improve=0.04716611, (0 missing)
##       reward_length      < 7352.5   to the right, improve=0.02403846, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  LRRRLLLLLRLR, agree=0.759, adj=0.462, (0 split)
##       reward_length      < 10384.5  to the left,  agree=0.655, adj=0.231, (0 split)
##       campaign_duration  < 29.98    to the right, agree=0.621, adj=0.154, (0 split)
##       social_media_count splits as  LRR-,         agree=0.621, adj=0.154, (0 split)
## 
## Node number 383: 620 observations
##   mean=0.9419355, MSE=0.05469303 
## 
## Node number 386: 412 observations,    complexity param=0.000188144
##   mean=0.1966019, MSE=0.1579496 
##   left son=772 (78 obs) right son=773 (334 obs)
##   Primary splits:
##       reward_length      < 1406.5   to the left,  improve=0.021177000, (0 missing)
##       campaign_duration  < 9.345    to the right, improve=0.015373940, (0 missing)
##       goal               < 1994     to the right, improve=0.010221780, (0 missing)
##       description_length < 1394     to the right, improve=0.008097072, (0 missing)
##       social_media_count splits as  RRLL,         improve=0.005465054, (0 missing)
##   Surrogate splits:
##       campaign_duration < 8.56     to the left,  agree=0.82, adj=0.051, (0 split)
## 
## Node number 387: 216 observations,    complexity param=0.0001665416
##   mean=0.3148148, MSE=0.2157064 
##   left son=774 (190 obs) right son=775 (26 obs)
##   Primary splits:
##       reward_length      < 3759.5   to the left,  improve=0.03173085, (0 missing)
##       description_length < 334.5    to the left,  improve=0.02230386, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.02020385, (0 missing)
##       goal               < 2850     to the right, improve=0.01324854, (0 missing)
##       campaign_duration  < 53.61    to the right, improve=0.00837304, (0 missing)
## 
## Node number 388: 215 observations,    complexity param=0.0001454195
##   mean=0.2744186, MSE=0.199113 
##   left son=776 (119 obs) right son=777 (96 obs)
##   Primary splits:
##       campaign_duration  < 30.285   to the left,  improve=0.02576706, (0 missing)
##       mo_launched        splits as  LRRLLLLRLLRR, improve=0.01937143, (0 missing)
##       description_length < 9204     to the right, improve=0.01844903, (0 missing)
##       goal               < 2275     to the right, improve=0.01833904, (0 missing)
##       social_media_count splits as  RLL-,         improve=0.01463998, (0 missing)
##   Surrogate splits:
##       social_media_count splits as  LRR-,         agree=0.591, adj=0.083, (0 split)
##       mo_launched        splits as  LLRLRLLLLLLR, agree=0.591, adj=0.083, (0 split)
##       description_length < 2746.5   to the right, agree=0.572, adj=0.042, (0 split)
##       goal               < 3953     to the left,  agree=0.567, adj=0.031, (0 split)
##       reward_length      < 4013     to the left,  agree=0.563, adj=0.021, (0 split)
## 
## Node number 389: 51 observations,    complexity param=0.0002192833
##   mean=0.4705882, MSE=0.2491349 
##   left son=778 (23 obs) right son=779 (28 obs)
##   Primary splits:
##       mo_launched        splits as  RRLRLRRRRLLL, improve=0.21137420, (0 missing)
##       category           splits as  --------R---LR-, improve=0.13586290, (0 missing)
##       reward_length      < 3663.5   to the left,  improve=0.11111110, (0 missing)
##       description_length < 2091     to the left,  improve=0.06858766, (0 missing)
##       goal               < 2775     to the left,  improve=0.06176901, (0 missing)
##   Surrogate splits:
##       goal               < 2825     to the left,  agree=0.647, adj=0.217, (0 split)
##       description_length < 2081.5   to the left,  agree=0.627, adj=0.174, (0 split)
##       category           splits as  --------R---RL-, agree=0.608, adj=0.130, (0 split)
##       reward_length      < 2738     to the left,  agree=0.588, adj=0.087, (0 split)
##       campaign_duration  < 14.52    to the left,  agree=0.569, adj=0.043, (0 split)
## 
## Node number 390: 15 observations
##   mean=0.1333333, MSE=0.1155556 
## 
## Node number 391: 119 observations,    complexity param=0.0002021294
##   mean=0.5462185, MSE=0.2478639 
##   left son=782 (73 obs) right son=783 (46 obs)
##   Primary splits:
##       reward_length      < 3081     to the right, improve=0.05676999, (0 missing)
##       mo_launched        splits as  LLRRLLLLLLLL, improve=0.03384630, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.02541216, (0 missing)
##       campaign_duration  < 22.935   to the right, improve=0.01927480, (0 missing)
##       description_length < 4960.5   to the left,  improve=0.01347017, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 44.98    to the left,  agree=0.647, adj=0.087, (0 split)
##       mo_launched        splits as  LLLLLRLLLLLL, agree=0.630, adj=0.043, (0 split)
##       goal               < 925      to the right, agree=0.622, adj=0.022, (0 split)
##       description_length < 2030.5   to the right, agree=0.622, adj=0.022, (0 split)
## 
## Node number 392: 150 observations,    complexity param=0.0002300961
##   mean=0.1266667, MSE=0.1106222 
##   left son=784 (125 obs) right son=785 (25 obs)
##   Primary splits:
##       description_length < 1036     to the left,  improve=0.13507430, (0 missing)
##       mo_launched        splits as  LRRRLLLRRLRL, improve=0.07347563, (0 missing)
##       category           splits as  R---R-----L----, improve=0.04073468, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.02423226, (0 missing)
##       campaign_duration  < 37.315   to the left,  improve=0.01285657, (0 missing)
## 
## Node number 393: 489 observations,    complexity param=0.0002525711
##   mean=0.3312883, MSE=0.2215364 
##   left son=786 (58 obs) right son=787 (431 obs)
##   Primary splits:
##       description_length < 377.5    to the left,  improve=0.02271051, (0 missing)
##       campaign_duration  < 13.765   to the right, improve=0.01812747, (0 missing)
##       mo_launched        splits as  RLLLRRLRLLLL, improve=0.01504436, (0 missing)
##       reward_length      < 2768     to the left,  improve=0.01340626, (0 missing)
##       social_media_count splits as  RLLR,         improve=0.01055528, (0 missing)
## 
## Node number 394: 187 observations,    complexity param=0.0001646986
##   mean=0.315508, MSE=0.2159627 
##   left son=788 (77 obs) right son=789 (110 obs)
##   Primary splits:
##       video_status      < 0.5      to the left,  improve=0.03760782, (0 missing)
##       mo_launched       splits as  RLLLRLLLLRRR, improve=0.03532505, (0 missing)
##       reward_length     < 3135.5   to the left,  improve=0.03453612, (0 missing)
##       campaign_duration < 60.02    to the right, improve=0.02060056, (0 missing)
##       goal              < 1550     to the right, improve=0.01711568, (0 missing)
##   Surrogate splits:
##       description_length < 381.5    to the left,  agree=0.636, adj=0.117, (0 split)
##       mo_launched        splits as  RLRRRRRLRRRL, agree=0.620, adj=0.078, (0 split)
##       campaign_duration  < 68.45    to the right, agree=0.615, adj=0.065, (0 split)
##       reward_length      < 701      to the left,  agree=0.610, adj=0.052, (0 split)
##       goal               < 1675     to the right, agree=0.594, adj=0.013, (0 split)
## 
## Node number 395: 376 observations,    complexity param=0.0004192853
##   mean=0.4973404, MSE=0.2499929 
##   left son=790 (318 obs) right son=791 (58 obs)
##   Primary splits:
##       campaign_duration < 23.135   to the right, improve=0.043450140, (0 missing)
##       reward_length     < 3456     to the left,  improve=0.022596280, (0 missing)
##       mo_launched       splits as  LRLRRLRLLRLR, improve=0.022510180, (0 missing)
##       video_status      < 0.5      to the left,  improve=0.011471810, (0 missing)
##       usa               < 0.5      to the left,  improve=0.009662714, (0 missing)
## 
## Node number 396: 297 observations,    complexity param=0.0001819475
##   mean=0.4309764, MSE=0.2452357 
##   left son=792 (26 obs) right son=793 (271 obs)
##   Primary splits:
##       goal               < 3400     to the right, improve=0.022284930, (0 missing)
##       mo_launched        splits as  LRRRRRRLLLLL, improve=0.021761420, (0 missing)
##       campaign_duration  < 25.695   to the right, improve=0.021490890, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.013217810, (0 missing)
##       description_length < 1720.5   to the left,  improve=0.008025453, (0 missing)
## 
## Node number 397: 53 observations,    complexity param=0.0001657462
##   mean=0.6226415, MSE=0.2349591 
##   left son=794 (23 obs) right son=795 (30 obs)
##   Primary splits:
##       description_length < 4186     to the right, improve=0.11515370, (0 missing)
##       mo_launched        splits as  RRRLLRLRLRRL, improve=0.10062910, (0 missing)
##       reward_length      < 1558.5   to the left,  improve=0.07477699, (0 missing)
##       campaign_duration  < 59.52    to the right, improve=0.07286501, (0 missing)
##       goal               < 1150     to the left,  improve=0.05754246, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 23.93    to the left,  agree=0.679, adj=0.261, (0 split)
##       mo_launched        splits as  RRLLRRRLLRRL, agree=0.660, adj=0.217, (0 split)
##       social_media_count splits as  RLR-,         agree=0.642, adj=0.174, (0 split)
##       reward_length      < 1860.5   to the left,  agree=0.642, adj=0.174, (0 split)
##       goal               < 1225     to the right, agree=0.585, adj=0.043, (0 split)
## 
## Node number 398: 100 observations,    complexity param=0.0002508913
##   mean=0.46, MSE=0.2484 
##   left son=796 (56 obs) right son=797 (44 obs)
##   Primary splits:
##       mo_launched        splits as  LRLLRRLRLLLR, improve=0.09838551, (0 missing)
##       description_length < 1358     to the left,  improve=0.06411788, (0 missing)
##       category           splits as  L---R-----L----, improve=0.04779220, (0 missing)
##       reward_length      < 3439     to the right, improve=0.04315153, (0 missing)
##       campaign_duration  < 75.225   to the right, improve=0.03982223, (0 missing)
##   Surrogate splits:
##       reward_length      < 3279.5   to the right, agree=0.65, adj=0.205, (0 split)
##       campaign_duration  < 60.05    to the left,  agree=0.62, adj=0.136, (0 split)
##       social_media_count splits as  LRRL, agree=0.60, adj=0.091, (0 split)
##       description_length < 1381     to the right, agree=0.59, adj=0.068, (0 split)
##       category           splits as  L---R-----L----, agree=0.57, adj=0.023, (0 split)
## 
## Node number 399: 608 observations,    complexity param=0.0002903067
##   mean=0.6348684, MSE=0.2318105 
##   left son=798 (281 obs) right son=799 (327 obs)
##   Primary splits:
##       mo_launched        splits as  RLRRLLRLRRLR, improve=0.021496130, (0 missing)
##       description_length < 2136     to the left,  improve=0.015831070, (0 missing)
##       social_media_count splits as  RRRL,         improve=0.012163000, (0 missing)
##       goal               < 1575     to the right, improve=0.009380391, (0 missing)
##       reward_length      < 3545     to the left,  improve=0.007964522, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 29.975   to the left,  agree=0.586, adj=0.103, (0 split)
##       goal               < 1004     to the left,  agree=0.564, adj=0.057, (0 split)
##       description_length < 2019.5   to the left,  agree=0.562, adj=0.053, (0 split)
##       reward_length      < 3502     to the right, agree=0.554, adj=0.036, (0 split)
##       social_media_count splits as  RRRL,         agree=0.543, adj=0.011, (0 split)
## 
## Node number 400: 60 observations,    complexity param=0.0001714304
##   mean=0.2666667, MSE=0.1955556 
##   left son=800 (37 obs) right son=801 (23 obs)
##   Primary splits:
##       mo_launched        splits as  RRLRLLLLLLR-, improve=0.14231920, (0 missing)
##       reward_length      < 2052.5   to the right, improve=0.08163265, (0 missing)
##       description_length < 562.5    to the left,  improve=0.06173416, (0 missing)
##       category           splits as  R---R---L-L-LR-, improve=0.05371225, (0 missing)
##       goal               < 725      to the left,  improve=0.04489491, (0 missing)
##   Surrogate splits:
##       usa                < 0.5      to the right, agree=0.667, adj=0.130, (0 split)
##       campaign_duration  < 51.205   to the left,  agree=0.633, adj=0.043, (0 split)
##       category           splits as  L---R---L-L-LL-, agree=0.633, adj=0.043, (0 split)
##       description_length < 1271.5   to the left,  agree=0.633, adj=0.043, (0 split)
##       reward_length      < 580      to the right, agree=0.633, adj=0.043, (0 split)
## 
## Node number 401: 240 observations,    complexity param=0.0002224472
##   mean=0.4791667, MSE=0.249566 
##   left son=802 (50 obs) right son=803 (190 obs)
##   Primary splits:
##       description_length < 1013.5   to the right, improve=0.03384897, (0 missing)
##       reward_length      < 1598.5   to the right, improve=0.03213086, (0 missing)
##       goal               < 142.75   to the right, improve=0.02211609, (0 missing)
##       mo_launched        splits as  RRRRRLLLLLLL, improve=0.02158731, (0 missing)
##       category           splits as  L---L---L-L-LR-, improve=0.01719830, (0 missing)
## 
## Node number 402: 17 observations
##   mean=0.2352941, MSE=0.1799308 
## 
## Node number 403: 373 observations,    complexity param=0.000200063
##   mean=0.5683646, MSE=0.2453263 
##   left son=806 (33 obs) right son=807 (340 obs)
##   Primary splits:
##       reward_length      < 3910.5   to the right, improve=0.01658237, (0 missing)
##       social_media_count splits as  LRRR,         improve=0.01554762, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.01546003, (0 missing)
##       mo_launched        splits as  RRRLLRRLRRRR, improve=0.01360663, (0 missing)
##       campaign_duration  < 60.035   to the left,  improve=0.01235012, (0 missing)
## 
## Node number 404: 9 observations
##   mean=0.1111111, MSE=0.09876543 
## 
## Node number 405: 153 observations,    complexity param=0.0002056406
##   mean=0.5686275, MSE=0.2452903 
##   left son=810 (83 obs) right son=811 (70 obs)
##   Primary splits:
##       reward_length      < 2902.5   to the right, improve=0.05934018, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.03247659, (0 missing)
##       mo_launched        splits as  RLLRRRLLLLLL, improve=0.03125138, (0 missing)
##       usa                < 0.5      to the left,  improve=0.02370690, (0 missing)
##       description_length < 3032.5   to the left,  improve=0.01523517, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  LRLRLLRRLLLL, agree=0.608, adj=0.143, (0 split)
##       campaign_duration  < 41.01    to the left,  agree=0.595, adj=0.114, (0 split)
##       description_length < 1502.5   to the right, agree=0.569, adj=0.057, (0 split)
##       goal               < 304      to the right, agree=0.562, adj=0.043, (0 split)
##       social_media_count splits as  LLLR,         agree=0.549, adj=0.014, (0 split)
## 
## Node number 406: 227 observations,    complexity param=0.0002005101
##   mean=0.6387665, MSE=0.2307439 
##   left son=812 (61 obs) right son=813 (166 obs)
##   Primary splits:
##       reward_length      < 2357.5   to the left,  improve=0.02715045, (0 missing)
##       mo_launched        splits as  LRRRLRRRRRLR, improve=0.02647568, (0 missing)
##       description_length < 5585     to the left,  improve=0.01799373, (0 missing)
##       social_media_count splits as  RLL-,         improve=0.01617501, (0 missing)
##       campaign_duration  < 47.165   to the right, improve=0.01530425, (0 missing)
##   Surrogate splits:
##       campaign_duration < 89.225   to the right, agree=0.744, adj=0.049, (0 split)
## 
## Node number 407: 96 observations
##   mean=0.8020833, MSE=0.1587457 
## 
## Node number 408: 253 observations,    complexity param=0.0001981542
##   mean=0.6007905, MSE=0.2398413 
##   left son=816 (73 obs) right son=817 (180 obs)
##   Primary splits:
##       description_length < 819      to the left,  improve=0.03083419, (0 missing)
##       usa                < 0.5      to the left,  improve=0.01823952, (0 missing)
##       campaign_duration  < 21.95    to the right, improve=0.01675312, (0 missing)
##       goal               < 247      to the left,  improve=0.01553817, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.01172345, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 21.95    to the right, agree=0.719, adj=0.027, (0 split)
##       social_media_count splits as  RRLR,         agree=0.715, adj=0.014, (0 split)
##       reward_length      < 1189.5   to the left,  agree=0.715, adj=0.014, (0 split)
## 
## Node number 409: 11 observations
##   mean=1, MSE=0 
## 
## Node number 412: 9 observations
##   mean=0.3333333, MSE=0.2222222 
## 
## Node number 413: 78 observations
##   mean=0.7307692, MSE=0.1967456 
## 
## Node number 414: 66 observations,    complexity param=0.0001146389
##   mean=0.7575758, MSE=0.1836547 
##   left son=828 (33 obs) right son=829 (33 obs)
##   Primary splits:
##       reward_length      < 2876     to the right, improve=0.12500000, (0 missing)
##       description_length < 1548     to the right, improve=0.06200922, (0 missing)
##       goal               < 450      to the right, improve=0.04659832, (0 missing)
##       campaign_duration  < 15.415   to the left,  improve=0.04500000, (0 missing)
##       mo_launched        splits as  -RL-L-L--L--, improve=0.04413793, (0 missing)
##   Surrogate splits:
##       description_length < 1537.5   to the right, agree=0.712, adj=0.424, (0 split)
##       goal               < 531      to the right, agree=0.652, adj=0.303, (0 split)
##       campaign_duration  < 14.48    to the right, agree=0.591, adj=0.182, (0 split)
##       mo_launched        splits as  -RL-R-L--R--, agree=0.591, adj=0.182, (0 split)
##       social_media_count splits as  RRLL,         agree=0.561, adj=0.121, (0 split)
## 
## Node number 415: 64 observations
##   mean=0.90625, MSE=0.08496094 
## 
## Node number 418: 21 observations,    complexity param=0.0001985989
##   mean=0.2380952, MSE=0.1814059 
##   left son=836 (13 obs) right son=837 (8 obs)
##   Primary splits:
##       mo_launched        splits as  -RL-LLLLLRRL, improve=0.5078125, (0 missing)
##       description_length < 2850.5   to the left,  improve=0.2343750, (0 missing)
##       reward_length      < 2280     to the right, improve=0.2343750, (0 missing)
##       campaign_duration  < 34.625   to the left,  improve=0.1923077, (0 missing)
##       video_status       < 0.5      to the right, improve=0.1000000, (0 missing)
##   Surrogate splits:
##       reward_length      < 2280     to the right, agree=0.810, adj=0.500, (0 split)
##       description_length < 3620     to the left,  agree=0.762, adj=0.375, (0 split)
##       campaign_duration  < 63.145   to the left,  agree=0.667, adj=0.125, (0 split)
##       social_media_count splits as  LLLR,         agree=0.667, adj=0.125, (0 split)
##       goal               < 1875     to the left,  agree=0.667, adj=0.125, (0 split)
## 
## Node number 419: 95 observations,    complexity param=0.0002107754
##   mean=0.6210526, MSE=0.2353463 
##   left son=838 (35 obs) right son=839 (60 obs)
##   Primary splits:
##       mo_launched        splits as  RLLRLRRLRRLR, improve=0.09183033, (0 missing)
##       campaign_duration  < 30.02    to the left,  improve=0.06270192, (0 missing)
##       description_length < 1599     to the left,  improve=0.05538764, (0 missing)
##       goal               < 3275     to the right, improve=0.03893008, (0 missing)
##       reward_length      < 2132.5   to the left,  improve=0.02653647, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 29.995   to the left,  agree=0.674, adj=0.114, (0 split)
##       reward_length      < 1784     to the left,  agree=0.674, adj=0.114, (0 split)
##       social_media_count splits as  RLR-,         agree=0.653, adj=0.057, (0 split)
##       description_length < 2372.5   to the right, agree=0.653, adj=0.057, (0 split)
## 
## Node number 420: 63 observations,    complexity param=0.0001436945
##   mean=0.4920635, MSE=0.249937 
##   left son=840 (19 obs) right son=841 (44 obs)
##   Primary splits:
##       reward_length      < 3105.5   to the left,  improve=0.090528050, (0 missing)
##       mo_launched        splits as  LRRLLRLRLRRR, improve=0.073487900, (0 missing)
##       goal               < 2850     to the left,  improve=0.042389110, (0 missing)
##       description_length < 448.5    to the left,  improve=0.021295360, (0 missing)
##       campaign_duration  < 30.02    to the right, improve=0.006398357, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  LRRRRRRRRRRR, agree=0.730, adj=0.105, (0 split)
##       description_length < 448.5    to the left,  agree=0.714, adj=0.053, (0 split)
## 
## Node number 421: 69 observations,    complexity param=0.0001436945
##   mean=0.6956522, MSE=0.2117202 
##   left son=842 (24 obs) right son=843 (45 obs)
##   Primary splits:
##       campaign_duration  < 54.095   to the right, improve=0.09642857, (0 missing)
##       social_media_count splits as  LR--,         improve=0.08297414, (0 missing)
##       description_length < 1076.5   to the right, improve=0.06879409, (0 missing)
##       mo_launched        splits as  RRRRRLLRRRLR, improve=0.05458221, (0 missing)
##       goal               < 2100     to the right, improve=0.05294118, (0 missing)
##   Surrogate splits:
##       reward_length      < 2644     to the left,  agree=0.710, adj=0.167, (0 split)
##       photo_key          < 0.5      to the left,  agree=0.681, adj=0.083, (0 split)
##       description_length < 46.5     to the left,  agree=0.681, adj=0.083, (0 split)
## 
## Node number 422: 43 observations,    complexity param=0.0001870222
##   mean=0.5581395, MSE=0.2466198 
##   left son=844 (24 obs) right son=845 (19 obs)
##   Primary splits:
##       mo_launched        splits as  LLLRLLRLRRRL, improve=0.17178840, (0 missing)
##       goal               < 2850     to the right, improve=0.12151590, (0 missing)
##       description_length < 1653.5   to the right, improve=0.05777801, (0 missing)
##       reward_length      < 3320.5   to the right, improve=0.04772708, (0 missing)
##       campaign_duration  < 53.385   to the left,  improve=0.01922341, (0 missing)
##   Surrogate splits:
##       reward_length      < 3624     to the right, agree=0.674, adj=0.263, (0 split)
##       goal               < 2850     to the right, agree=0.651, adj=0.211, (0 split)
##       description_length < 1859.5   to the right, agree=0.651, adj=0.211, (0 split)
##       campaign_duration  < 30.12    to the right, agree=0.581, adj=0.053, (0 split)
##       video_status       < 0.5      to the right, agree=0.581, adj=0.053, (0 split)
## 
## Node number 423: 162 observations,    complexity param=0.000124172
##   mean=0.7962963, MSE=0.1622085 
##   left son=846 (73 obs) right son=847 (89 obs)
##   Primary splits:
##       reward_length      < 3520.5   to the right, improve=0.03565184, (0 missing)
##       description_length < 3149     to the left,  improve=0.02631174, (0 missing)
##       goal               < 1750     to the left,  improve=0.02391589, (0 missing)
##       campaign_duration  < 74.985   to the right, improve=0.02101729, (0 missing)
##       mo_launched        splits as  RRLLLLLRLRLR, improve=0.01960124, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  RRLRLRLRRRRR, agree=0.611, adj=0.137, (0 split)
##       campaign_duration  < 74.985   to the right, agree=0.580, adj=0.068, (0 split)
##       description_length < 4596.5   to the right, agree=0.574, adj=0.055, (0 split)
## 
## Node number 428: 42 observations,    complexity param=0.0001075457
##   mean=0.6428571, MSE=0.2295918 
##   left son=856 (9 obs) right son=857 (33 obs)
##   Primary splits:
##       description_length < 639.5    to the right, improve=0.11380470, (0 missing)
##       reward_length      < 2559     to the left,  improve=0.10297480, (0 missing)
##       campaign_duration  < 44.325   to the left,  improve=0.07190423, (0 missing)
##       social_media_count splits as  RLL-,         improve=0.04000000, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.03811765, (0 missing)
##   Surrogate splits:
##       social_media_count splits as  RRL-, agree=0.81, adj=0.111, (0 split)
## 
## Node number 429: 183 observations,    complexity param=0.0001075457
##   mean=0.7868852, MSE=0.1676969 
##   left son=858 (57 obs) right son=859 (126 obs)
##   Primary splits:
##       description_length < 1926     to the right, improve=0.02843848, (0 missing)
##       social_media_count splits as  RLRL,         improve=0.01457306, (0 missing)
##       goal               < 275      to the right, improve=0.01296026, (0 missing)
##       mo_launched        splits as  R--RR-L-RRR-, improve=0.01193973, (0 missing)
##       reward_length      < 3563.5   to the right, improve=0.01149302, (0 missing)
##   Surrogate splits:
##       goal               < 182.5    to the left,  agree=0.705, adj=0.053, (0 split)
##       social_media_count splits as  RRRL,         agree=0.694, adj=0.018, (0 split)
##       reward_length      < 3998.5   to the right, agree=0.694, adj=0.018, (0 split)
## 
## Node number 448: 173 observations,    complexity param=0.0002290528
##   mean=0.2369942, MSE=0.180828 
##   left son=896 (92 obs) right son=897 (81 obs)
##   Primary splits:
##       mo_launched        splits as  LRLLRRRLLLLR, improve=0.07132160, (0 missing)
##       description_length < 1238     to the right, improve=0.02712076, (0 missing)
##       reward_length      < 4910.5   to the left,  improve=0.02026892, (0 missing)
##       usa                < 0.5      to the left,  improve=0.01905559, (0 missing)
##       category           splits as  R-------L---L--, improve=0.01866717, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 29.98    to the right, agree=0.590, adj=0.123, (0 split)
##       social_media_count splits as  LRL-, agree=0.566, adj=0.074, (0 split)
##       category           splits as  R-------R---L--, agree=0.566, adj=0.074, (0 split)
##       description_length < 1950.5   to the left,  agree=0.561, adj=0.062, (0 split)
##       reward_length      < 4357.5   to the right, agree=0.549, adj=0.037, (0 split)
## 
## Node number 449: 25 observations,    complexity param=0.0002542986
##   mean=0.52, MSE=0.2496 
##   left son=898 (15 obs) right son=899 (10 obs)
##   Primary splits:
##       mo_launched        splits as  RLRRLRLRRLLL, improve=0.61538460, (0 missing)
##       category           splits as  R-------R---L--, improve=0.08653846, (0 missing)
##       description_length < 1849     to the right, improve=0.08552096, (0 missing)
##       reward_length      < 12649.5  to the left,  improve=0.05881156, (0 missing)
##       goal               < 2749.5   to the right, improve=0.01483399, (0 missing)
##   Surrogate splits:
##       reward_length      < 9546     to the right, agree=0.76, adj=0.4, (0 split)
##       campaign_duration  < 15.73    to the right, agree=0.68, adj=0.2, (0 split)
##       description_length < 1158.5   to the right, agree=0.68, adj=0.2, (0 split)
##       social_media_count splits as  LR--,         agree=0.64, adj=0.1, (0 split)
##       goal               < 2250     to the right, agree=0.64, adj=0.1, (0 split)
## 
## Node number 450: 10 observations
##   mean=0.1, MSE=0.09 
## 
## Node number 451: 85 observations,    complexity param=0.0001365279
##   mean=0.4823529, MSE=0.2496886 
##   left son=902 (38 obs) right son=903 (47 obs)
##   Primary splits:
##       mo_launched        splits as  RLRRLLRRRRLL, improve=0.06369105, (0 missing)
##       category           splits as  R-------L---L--, improve=0.04927322, (0 missing)
##       social_media_count splits as  LRR-, improve=0.03463457, (0 missing)
##       reward_length      < 7130.5   to the left,  improve=0.03187598, (0 missing)
##       campaign_duration  < 18       to the right, improve=0.02529564, (0 missing)
##   Surrogate splits:
##       category           splits as  R-------R---L--, agree=0.624, adj=0.158, (0 split)
##       social_media_count splits as  RLR-, agree=0.612, adj=0.132, (0 split)
##       campaign_duration  < 29.98    to the left,  agree=0.600, adj=0.105, (0 split)
##       reward_length      < 8421.5   to the right, agree=0.588, adj=0.079, (0 split)
##       usa                < 0.5      to the left,  agree=0.576, adj=0.053, (0 split)
## 
## Node number 452: 47 observations
##   mean=0.1914894, MSE=0.1548212 
## 
## Node number 453: 49 observations,    complexity param=0.0001306186
##   mean=0.5102041, MSE=0.2498959 
##   left son=906 (41 obs) right son=907 (8 obs)
##   Primary splits:
##       goal               < 1750     to the right, improve=0.10390750, (0 missing)
##       campaign_duration  < 64.215   to the left,  improve=0.06446296, (0 missing)
##       social_media_count splits as  RLL-,         improve=0.05286585, (0 missing)
##       description_length < 2001     to the right, improve=0.05286585, (0 missing)
##       reward_length      < 6929     to the left,  improve=0.03696154, (0 missing)
##   Surrogate splits:
##       reward_length < 4377.5   to the right, agree=0.857, adj=0.125, (0 split)
## 
## Node number 454: 441 observations,    complexity param=0.0003087869
##   mean=0.4943311, MSE=0.2499679 
##   left son=908 (343 obs) right son=909 (98 obs)
##   Primary splits:
##       reward_length      < 8138.5   to the left,  improve=0.028798290, (0 missing)
##       description_length < 521      to the left,  improve=0.022759000, (0 missing)
##       category           splits as  --------L---R--, improve=0.014462480, (0 missing)
##       mo_launched        splits as  RRLRLLLLLRRL, improve=0.012572750, (0 missing)
##       campaign_duration  < 30.565   to the left,  improve=0.007654174, (0 missing)
##   Surrogate splits:
##       description_length < 2062.5   to the left,  agree=0.785, adj=0.031, (0 split)
## 
## Node number 455: 384 observations,    complexity param=0.0002426646
##   mean=0.6119792, MSE=0.2374607 
##   left son=910 (120 obs) right son=911 (264 obs)
##   Primary splits:
##       mo_launched        splits as  LRRRRRRLRRLL, improve=0.017389430, (0 missing)
##       description_length < 2045.5   to the right, improve=0.010959430, (0 missing)
##       campaign_duration  < 52.15    to the left,  improve=0.006198559, (0 missing)
##       goal               < 1310     to the right, improve=0.004407844, (0 missing)
##       reward_length      < 10358    to the right, improve=0.004396950, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 8.035    to the left,  agree=0.693, adj=0.017, (0 split)
##       description_length < 2071.5   to the right, agree=0.693, adj=0.017, (0 split)
##       goal               < 1105.5   to the left,  agree=0.690, adj=0.008, (0 split)
## 
## Node number 456: 209 observations,    complexity param=0.000129522
##   mean=0.4401914, MSE=0.2464229 
##   left son=912 (99 obs) right son=913 (110 obs)
##   Primary splits:
##       description_length < 1291     to the left,  improve=0.02140468, (0 missing)
##       reward_length      < 10434    to the left,  improve=0.01710835, (0 missing)
##       usa                < 0.5      to the left,  improve=0.01486848, (0 missing)
##       category           splits as  L-------L---R--, improve=0.01483229, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.01286906, (0 missing)
##   Surrogate splits:
##       reward_length      < 5537.5   to the left,  agree=0.593, adj=0.141, (0 split)
##       mo_launched        splits as  L-R--RRRL-RR, agree=0.569, adj=0.091, (0 split)
##       category           splits as  L-------R---R--, agree=0.569, adj=0.091, (0 split)
##       campaign_duration  < 30.02    to the left,  agree=0.541, adj=0.030, (0 split)
##       social_media_count splits as  RRRL, agree=0.536, adj=0.020, (0 split)
## 
## Node number 457: 56 observations,    complexity param=0.0001784131
##   mean=0.7142857, MSE=0.2040816 
##   left son=914 (26 obs) right son=915 (30 obs)
##   Primary splits:
##       mo_launched        splits as  R-L--LRLR-RR, improve=0.13128210, (0 missing)
##       campaign_duration  < 38.265   to the right, improve=0.08080808, (0 missing)
##       description_length < 785.5    to the left,  improve=0.06832151, (0 missing)
##       reward_length      < 4505     to the right, improve=0.05714286, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.02929688, (0 missing)
##   Surrogate splits:
##       video_status       < 0.5      to the right, agree=0.607, adj=0.154, (0 split)
##       reward_length      < 6404     to the right, agree=0.607, adj=0.154, (0 split)
##       social_media_count splits as  RLR-,         agree=0.589, adj=0.115, (0 split)
##       description_length < 785.5    to the left,  agree=0.589, adj=0.115, (0 split)
##       campaign_duration  < 34.945   to the right, agree=0.571, adj=0.077, (0 split)
## 
## Node number 458: 81 observations,    complexity param=0.0002110181
##   mean=0.5925926, MSE=0.2414266 
##   left son=916 (64 obs) right son=917 (17 obs)
##   Primary splits:
##       reward_length      < 4720     to the right, improve=0.09237655, (0 missing)
##       goal               < 675      to the right, improve=0.04801136, (0 missing)
##       mo_launched        splits as  -R-RL----R--, improve=0.03900162, (0 missing)
##       description_length < 1951.5   to the left,  improve=0.03620213, (0 missing)
##       social_media_count splits as  RRL-,         improve=0.01054098, (0 missing)
## 
## Node number 459: 54 observations
##   mean=0.8148148, MSE=0.1508916 
## 
## Node number 460: 53 observations,    complexity param=0.0001363999
##   mean=0.5283019, MSE=0.249199 
##   left son=920 (18 obs) right son=921 (35 obs)
##   Primary splits:
##       description_length < 900.5    to the left,  improve=0.07844898, (0 missing)
##       reward_length      < 6330.5   to the right, improve=0.04047130, (0 missing)
##       campaign_duration  < 29.46    to the left,  improve=0.02751163, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.02579390, (0 missing)
##       goal               < 425      to the right, improve=0.01250216, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  LRRR-------R, agree=0.698, adj=0.111, (0 split)
##       reward_length      < 4242     to the left,  agree=0.698, adj=0.111, (0 split)
##       social_media_count splits as  RLR-,         agree=0.679, adj=0.056, (0 split)
## 
## Node number 461: 84 observations
##   mean=0.797619, MSE=0.1614229 
## 
## Node number 462: 41 observations,    complexity param=0.0001426404
##   mean=0.7317073, MSE=0.1963117 
##   left son=924 (13 obs) right son=925 (28 obs)
##   Primary splits:
##       reward_length      < 5455     to the left,  improve=0.17262740, (0 missing)
##       description_length < 1687.5   to the right, improve=0.13740260, (0 missing)
##       video_status       < 0.5      to the right, improve=0.05352758, (0 missing)
##       campaign_duration  < 23.755   to the right, improve=0.03200133, (0 missing)
##       goal               < 275      to the right, improve=0.01650115, (0 missing)
##   Surrogate splits:
##       campaign_duration < 5.98     to the left,  agree=0.732, adj=0.154, (0 split)
##       category          splits as  R-------L---R--, agree=0.707, adj=0.077, (0 split)
## 
## Node number 463: 65 observations
##   mean=0.9692308, MSE=0.02982249 
## 
## Node number 464: 178 observations,    complexity param=0.0001708521
##   mean=0.3876404, MSE=0.2373753 
##   left son=928 (26 obs) right son=929 (152 obs)
##   Primary splits:
##       reward_length      < 4766.5   to the right, improve=0.03938782, (0 missing)
##       description_length < 7319.5   to the right, improve=0.03204460, (0 missing)
##       mo_launched        splits as  RLRRRRLLLRLR, improve=0.02540503, (0 missing)
##       goal               < 3594.5   to the right, improve=0.02314187, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.01795793, (0 missing)
##   Surrogate splits:
##       campaign_duration < 89.375   to the right, agree=0.86, adj=0.038, (0 split)
## 
## Node number 465: 325 observations,    complexity param=0.000307394
##   mean=0.5661538, MSE=0.2456237 
##   left son=930 (138 obs) right son=931 (187 obs)
##   Primary splits:
##       mo_launched        splits as  RLRRLRLRLRRL, improve=0.03611127, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.02567669, (0 missing)
##       description_length < 2342     to the left,  improve=0.02072438, (0 missing)
##       usa                < 0.5      to the left,  improve=0.01908116, (0 missing)
##       campaign_duration  < 54.01    to the right, improve=0.01577487, (0 missing)
##   Surrogate splits:
##       description_length < 6777.5   to the right, agree=0.597, adj=0.051, (0 split)
##       campaign_duration  < 21.275   to the left,  agree=0.591, adj=0.036, (0 split)
##       usa                < 0.5      to the left,  agree=0.578, adj=0.007, (0 split)
##       reward_length      < 6231.5   to the right, agree=0.578, adj=0.007, (0 split)
## 
## Node number 466: 71 observations,    complexity param=0.0002592326
##   mean=0.5211268, MSE=0.2495537 
##   left son=932 (45 obs) right son=933 (26 obs)
##   Primary splits:
##       reward_length      < 5294.5   to the left,  improve=0.14251630, (0 missing)
##       campaign_duration  < 29.835   to the right, improve=0.07171197, (0 missing)
##       description_length < 6127     to the right, improve=0.03740505, (0 missing)
##       goal               < 680      to the right, improve=0.03306912, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.02225823, (0 missing)
##   Surrogate splits:
##       description_length < 2188     to the right, agree=0.676, adj=0.115, (0 split)
##       campaign_duration  < 5.62     to the right, agree=0.662, adj=0.077, (0 split)
##       social_media_count splits as  LR--,         agree=0.648, adj=0.038, (0 split)
## 
## Node number 467: 98 observations,    complexity param=0.0001229293
##   mean=0.7959184, MSE=0.1624323 
##   left son=934 (12 obs) right son=935 (86 obs)
##   Primary splits:
##       campaign_duration  < 36       to the right, improve=0.07522361, (0 missing)
##       goal               < 845      to the left,  improve=0.03241969, (0 missing)
##       description_length < 2904.5   to the left,  improve=0.02843117, (0 missing)
##       reward_length      < 4646.5   to the right, improve=0.02620356, (0 missing)
##       video_status       < 0.5      to the right, improve=0.02023595, (0 missing)
## 
## Node number 468: 48 observations,    complexity param=0.000184281
##   mean=0.375, MSE=0.234375 
##   left son=936 (35 obs) right son=937 (13 obs)
##   Primary splits:
##       campaign_duration  < 29.275   to the right, improve=0.15956040, (0 missing)
##       reward_length      < 5812.5   to the right, improve=0.15789470, (0 missing)
##       goal               < 999.5    to the right, improve=0.13333330, (0 missing)
##       social_media_count splits as  LR--,         improve=0.12098770, (0 missing)
##       description_length < 3182     to the right, improve=0.03496673, (0 missing)
##   Surrogate splits:
##       goal < 3350     to the left,  agree=0.75, adj=0.077, (0 split)
## 
## Node number 469: 28 observations
##   mean=0.7857143, MSE=0.1683673 
## 
## Node number 470: 105 observations,    complexity param=0.0001057935
##   mean=0.6571429, MSE=0.2253061 
##   left son=940 (77 obs) right son=941 (28 obs)
##   Primary splits:
##       description_length < 2591.5   to the right, improve=0.04356061, (0 missing)
##       campaign_duration  < 20.545   to the right, improve=0.02373721, (0 missing)
##       reward_length      < 4495     to the right, improve=0.02131287, (0 missing)
##       goal               < 350      to the left,  improve=0.01656315, (0 missing)
##       social_media_count splits as  LRRR,         improve=0.01391634, (0 missing)
##   Surrogate splits:
##       campaign_duration < 8.165    to the right, agree=0.762, adj=0.107, (0 split)
##       usa               < 0.5      to the right, agree=0.752, adj=0.071, (0 split)
##       goal              < 457.5    to the right, agree=0.743, adj=0.036, (0 split)
##       reward_length     < 4138.5   to the right, agree=0.743, adj=0.036, (0 split)
## 
## Node number 471: 187 observations,    complexity param=0.0001077795
##   mean=0.7754011, MSE=0.1741543 
##   left son=942 (34 obs) right son=943 (153 obs)
##   Primary splits:
##       goal               < 3250     to the right, improve=0.021018060, (0 missing)
##       description_length < 2191.5   to the right, improve=0.019862070, (0 missing)
##       campaign_duration  < 55.795   to the right, improve=0.019332640, (0 missing)
##       mo_launched        splits as  L-LLLLL---R-, improve=0.014117250, (0 missing)
##       reward_length      < 5414     to the left,  improve=0.006635542, (0 missing)
## 
## Node number 472: 707 observations,    complexity param=0.0002252796
##   mean=0.612447, MSE=0.2373557 
##   left son=944 (512 obs) right son=945 (195 obs)
##   Primary splits:
##       description_length < 4631.5   to the left,  improve=0.011590170, (0 missing)
##       reward_length      < 13534    to the left,  improve=0.011336110, (0 missing)
##       mo_launched        splits as  RRRRLRRRLRLL, improve=0.010204650, (0 missing)
##       campaign_duration  < 24.055   to the left,  improve=0.008272124, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.004991198, (0 missing)
##   Surrogate splits:
##       reward_length < 6260.5   to the right, agree=0.728, adj=0.015, (0 split)
## 
## Node number 473: 107 observations,    complexity param=0.0001419097
##   mean=0.8130841, MSE=0.1519783 
##   left son=946 (43 obs) right son=947 (64 obs)
##   Primary splits:
##       mo_launched        splits as  RRRRRLRLRLLL, improve=0.08500484, (0 missing)
##       reward_length      < 18157    to the right, improve=0.02689737, (0 missing)
##       campaign_duration  < 21.44    to the left,  improve=0.02369949, (0 missing)
##       goal               < 3775     to the right, improve=0.02087690, (0 missing)
##       description_length < 3206     to the left,  improve=0.01828818, (0 missing)
##   Surrogate splits:
##       reward_length      < 15880.5  to the right, agree=0.654, adj=0.140, (0 split)
##       description_length < 6044.5   to the right, agree=0.636, adj=0.093, (0 split)
##       video_status       < 0.5      to the left,  agree=0.626, adj=0.070, (0 split)
##       goal               < 2150     to the left,  agree=0.617, adj=0.047, (0 split)
##       usa                < 0.5      to the left,  agree=0.607, adj=0.023, (0 split)
## 
## Node number 474: 657 observations,    complexity param=0.0002038132
##   mean=0.718417, MSE=0.202294 
##   left son=948 (62 obs) right son=949 (595 obs)
##   Primary splits:
##       usa               < 0.5      to the left,  improve=0.012200400, (0 missing)
##       reward_length     < 12561.5  to the left,  improve=0.008520110, (0 missing)
##       mo_launched       splits as  LRRRRRRRRRLL, improve=0.008368063, (0 missing)
##       video_status      < 0.5      to the left,  improve=0.008335494, (0 missing)
##       campaign_duration < 14.98    to the right, improve=0.007338686, (0 missing)
##   Surrogate splits:
##       description_length < 6761     to the right, agree=0.907, adj=0.016, (0 split)
## 
## Node number 475: 246 observations,    complexity param=0.0001053342
##   mean=0.804878, MSE=0.1570494 
##   left son=950 (89 obs) right son=951 (157 obs)
##   Primary splits:
##       mo_launched        splits as  LRRRRRLLRLRR, improve=0.02655798, (0 missing)
##       campaign_duration  < 39.17    to the right, improve=0.01683788, (0 missing)
##       description_length < 3670.5   to the right, improve=0.01401978, (0 missing)
##       social_media_count splits as  RRLR,         improve=0.01016365, (0 missing)
##       reward_length      < 16564    to the right, improve=0.01008663, (0 missing)
##   Surrogate splits:
##       description_length < 2084.5   to the left,  agree=0.646, adj=0.022, (0 split)
##       reward_length      < 6280     to the left,  agree=0.646, adj=0.022, (0 split)
##       campaign_duration  < 9.865    to the left,  agree=0.642, adj=0.011, (0 split)
## 
## Node number 476: 86 observations,    complexity param=0.000145069
##   mean=0.6627907, MSE=0.2234992 
##   left son=952 (57 obs) right son=953 (29 obs)
##   Primary splits:
##       campaign_duration  < 29.995   to the right, improve=0.06182127, (0 missing)
##       reward_length      < 7913     to the right, improve=0.05739007, (0 missing)
##       description_length < 7032     to the left,  improve=0.03800782, (0 missing)
##       usa                < 0.5      to the left,  improve=0.03138678, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.02493259, (0 missing)
##   Surrogate splits:
##       mo_launched splits as  L-RRLLLL-LL-, agree=0.721, adj=0.172, (0 split)
##       category    splits as  R-------L---L--, agree=0.709, adj=0.138, (0 split)
## 
## Node number 477: 22 observations
##   mean=1, MSE=0 
## 
## Node number 478: 48 observations,    complexity param=0.0001628898
##   mean=0.7291667, MSE=0.1974826 
##   left son=956 (23 obs) right son=957 (25 obs)
##   Primary splits:
##       reward_length      < 16332.5  to the right, improve=0.20044340, (0 missing)
##       category           splits as  L-------R---L--, improve=0.17802200, (0 missing)
##       goal               < 2750     to the left,  improve=0.07750916, (0 missing)
##       campaign_duration  < 39.635   to the right, improve=0.03522119, (0 missing)
##       description_length < 7507.5   to the right, improve=0.02153846, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 29.98    to the right, agree=0.625, adj=0.217, (0 split)
##       social_media_count splits as  RLL-,         agree=0.604, adj=0.174, (0 split)
##       goal               < 1309.5   to the right, agree=0.604, adj=0.174, (0 split)
##       mo_launched        splits as  -R--------L-, agree=0.562, adj=0.087, (0 split)
##       description_length < 8337.5   to the left,  agree=0.562, adj=0.087, (0 split)
## 
## Node number 479: 201 observations,    complexity param=0.0001242265
##   mean=0.9104478, MSE=0.08153264 
##   left son=958 (13 obs) right son=959 (188 obs)
##   Primary splits:
##       campaign_duration  < 19.22    to the left,  improve=0.07383869, (0 missing)
##       reward_length      < 13141.5  to the right, improve=0.03482876, (0 missing)
##       description_length < 9234.5   to the left,  improve=0.02560260, (0 missing)
##       mo_launched        splits as  R-LLRLLLLL-R, improve=0.02116711, (0 missing)
##       video_status       < 0.5      to the right, improve=0.01461358, (0 missing)
## 
## Node number 480: 67 observations
##   mean=0.2835821, MSE=0.2031633 
## 
## Node number 481: 91 observations,    complexity param=0.0002107539
##   mean=0.5274725, MSE=0.2492453 
##   left son=962 (10 obs) right son=963 (81 obs)
##   Primary splits:
##       reward_length      < 6294.5   to the right, improve=0.09051165, (0 missing)
##       campaign_duration  < 29.72    to the right, improve=0.03355816, (0 missing)
##       social_media_count splits as  LRLR,         improve=0.02374031, (0 missing)
##       goal               < 2900     to the right, improve=0.01946009, (0 missing)
##       mo_launched        splits as  L--LL--R-RLR, improve=0.01946009, (0 missing)
## 
## Node number 482: 57 observations,    complexity param=0.0001870331
##   mean=0.4035088, MSE=0.2406894 
##   left son=964 (39 obs) right son=965 (18 obs)
##   Primary splits:
##       goal               < 725      to the right, improve=0.13279560, (0 missing)
##       mo_launched        splits as  LRRLRL-LLLLR, improve=0.10479110, (0 missing)
##       campaign_duration  < 31.145   to the right, improve=0.05566125, (0 missing)
##       description_length < 284      to the left,  improve=0.04843403, (0 missing)
##       reward_length      < 4474     to the left,  improve=0.04843403, (0 missing)
##   Surrogate splits:
##       mo_launched       splits as  LRLLLL-LLLLR, agree=0.737, adj=0.167, (0 split)
##       campaign_duration < 13.1     to the right, agree=0.719, adj=0.111, (0 split)
##       reward_length     < 6103     to the left,  agree=0.719, adj=0.111, (0 split)
##       category          splits as  ----R-----L--L-, agree=0.702, adj=0.056, (0 split)
## 
## Node number 483: 342 observations,    complexity param=0.000162779
##   mean=0.619883, MSE=0.2356281 
##   left son=966 (229 obs) right son=967 (113 obs)
##   Primary splits:
##       mo_launched        splits as  RRRLLLLLLLRL, improve=0.019676250, (0 missing)
##       social_media_count splits as  LRLL,         improve=0.019399370, (0 missing)
##       reward_length      < 4399     to the right, improve=0.012975900, (0 missing)
##       campaign_duration  < 29.945   to the right, improve=0.010381230, (0 missing)
##       description_length < 2043.5   to the left,  improve=0.006754494, (0 missing)
##   Surrogate splits:
##       reward_length      < 4208.5   to the right, agree=0.681, adj=0.035, (0 split)
##       category           splits as  ----L-----L--R-, agree=0.675, adj=0.018, (0 split)
##       description_length < 599      to the right, agree=0.675, adj=0.018, (0 split)
##       goal               < 2261     to the left,  agree=0.673, adj=0.009, (0 split)
## 
## Node number 484: 69 observations,    complexity param=0.0001863424
##   mean=0.4927536, MSE=0.2499475 
##   left son=968 (38 obs) right son=969 (31 obs)
##   Primary splits:
##       mo_launched        splits as  LLRRL-RLLRLR, improve=0.11130170, (0 missing)
##       reward_length      < 7192     to the right, improve=0.09673467, (0 missing)
##       description_length < 914      to the right, improve=0.08740896, (0 missing)
##       goal               < 3250     to the right, improve=0.04392157, (0 missing)
##       campaign_duration  < 39.535   to the left,  improve=0.03114282, (0 missing)
##   Surrogate splits:
##       description_length < 843      to the left,  agree=0.623, adj=0.161, (0 split)
##       goal               < 782.25   to the right, agree=0.594, adj=0.097, (0 split)
##       reward_length      < 6765     to the right, agree=0.594, adj=0.097, (0 split)
##       campaign_duration  < 26.4     to the right, agree=0.580, adj=0.065, (0 split)
##       social_media_count splits as  LLR-,         agree=0.565, adj=0.032, (0 split)
## 
## Node number 485: 16 observations
##   mean=0.8125, MSE=0.1523438 
## 
## Node number 486: 195 observations,    complexity param=0.0001347957
##   mean=0.6461538, MSE=0.2286391 
##   left son=972 (187 obs) right son=973 (8 obs)
##   Primary splits:
##       description_length < 1054.5   to the right, improve=0.023427550, (0 missing)
##       campaign_duration  < 59.98    to the right, improve=0.021654630, (0 missing)
##       goal               < 475      to the right, improve=0.017722950, (0 missing)
##       reward_length      < 8865.5   to the right, improve=0.012153060, (0 missing)
##       social_media_count splits as  LLRR,         improve=0.008336378, (0 missing)
## 
## Node number 487: 87 observations
##   mean=0.816092, MSE=0.1500859 
## 
## Node number 488: 7 observations
##   mean=0.1428571, MSE=0.122449 
## 
## Node number 489: 122 observations,    complexity param=0.0001696005
##   mean=0.6311475, MSE=0.2328003 
##   left son=978 (97 obs) right son=979 (25 obs)
##   Primary splits:
##       reward_length      < 6931.5   to the left,  improve=0.04829074, (0 missing)
##       description_length < 667.5    to the right, improve=0.04101162, (0 missing)
##       campaign_duration  < 46.075   to the right, improve=0.03141669, (0 missing)
##       goal               < 1363.665 to the right, improve=0.02676995, (0 missing)
##       usa                < 0.5      to the left,  improve=0.01977798, (0 missing)
##   Surrogate splits:
##       goal               < 325      to the right, agree=0.811, adj=0.08, (0 split)
##       description_length < 247.5    to the right, agree=0.803, adj=0.04, (0 split)
## 
## Node number 490: 8 observations
##   mean=0.375, MSE=0.234375 
## 
## Node number 491: 58 observations
##   mean=0.862069, MSE=0.1189061 
## 
## Node number 496: 84 observations,    complexity param=0.0001777669
##   mean=0.3809524, MSE=0.2358277 
##   left son=992 (77 obs) right son=993 (7 obs)
##   Primary splits:
##       reward_length      < 9676     to the left,  improve=0.08741259, (0 missing)
##       social_media_count splits as  RLLR, improve=0.06865408, (0 missing)
##       goal               < 3750     to the right, improve=0.02533768, (0 missing)
##       description_length < 706      to the left,  improve=0.02372603, (0 missing)
##       category           splits as  ----L-R---L----, improve=0.02371345, (0 missing)
## 
## Node number 497: 52 observations,    complexity param=0.0002149945
##   mean=0.6538462, MSE=0.2263314 
##   left son=994 (20 obs) right son=995 (32 obs)
##   Primary splits:
##       reward_length      < 5912.5   to the left,  improve=0.17794120, (0 missing)
##       campaign_duration  < 57.715   to the right, improve=0.05446623, (0 missing)
##       description_length < 673.5    to the right, improve=0.02637447, (0 missing)
##       social_media_count splits as  RRLR,         improve=0.01901367, (0 missing)
##       goal               < 550      to the left,  improve=0.01901367, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  -R--R-LR----, agree=0.692, adj=0.20, (0 split)
##       campaign_duration  < 37.025   to the left,  agree=0.654, adj=0.10, (0 split)
##       category           splits as  ------L---R----, agree=0.654, adj=0.10, (0 split)
##       description_length < 1015.5   to the right, agree=0.635, adj=0.05, (0 split)
## 
## Node number 498: 47 observations,    complexity param=0.0001807037
##   mean=0.4680851, MSE=0.2489814 
##   left son=996 (36 obs) right son=997 (11 obs)
##   Primary splits:
##       mo_launched        splits as  R-LL-L--RLLL, improve=0.15041780, (0 missing)
##       goal               < 725      to the left,  improve=0.07434416, (0 missing)
##       reward_length      < 4371     to the right, improve=0.06888057, (0 missing)
##       description_length < 426      to the right, improve=0.03475207, (0 missing)
##       social_media_count splits as  RLL-,         improve=0.01796188, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 90.48    to the left,  agree=0.809, adj=0.182, (0 split)
##       goal               < 775      to the right, agree=0.787, adj=0.091, (0 split)
##       description_length < 350      to the right, agree=0.787, adj=0.091, (0 split)
## 
## Node number 499: 259 observations,    complexity param=0.0002080595
##   mean=0.6756757, MSE=0.2191381 
##   left son=998 (23 obs) right son=999 (236 obs)
##   Primary splits:
##       campaign_duration  < 61.685   to the right, improve=0.017332350, (0 missing)
##       reward_length      < 11976.5  to the left,  improve=0.016677360, (0 missing)
##       mo_launched        splits as  L-RL-L--LRLR, improve=0.014846630, (0 missing)
##       description_length < 1067.5   to the left,  improve=0.008471646, (0 missing)
##       goal               < 2625     to the left,  improve=0.008333333, (0 missing)
##   Surrogate splits:
##       category           splits as  ------R---R--L-, agree=0.915, adj=0.043, (0 split)
##       description_length < 1112.5   to the right, agree=0.915, adj=0.043, (0 split)
## 
## Node number 500: 667 observations,    complexity param=0.0002110302
##   mean=0.6911544, MSE=0.21346 
##   left son=1000 (345 obs) right son=1001 (322 obs)
##   Primary splits:
##       mo_launched       splits as  RLLRRLLLRRLR, improve=0.017632830, (0 missing)
##       category          splits as  ----LRR---R--R-, improve=0.014090300, (0 missing)
##       reward_length     < 4148     to the right, improve=0.008892503, (0 missing)
##       goal              < 3238.5   to the right, improve=0.007739612, (0 missing)
##       campaign_duration < 29.46    to the right, improve=0.007210762, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 30.035   to the left,  agree=0.544, adj=0.056, (0 split)
##       reward_length      < 5780     to the left,  agree=0.543, adj=0.053, (0 split)
##       description_length < 316.5    to the right, agree=0.534, adj=0.034, (0 split)
##       social_media_count splits as  LLLR,         agree=0.523, adj=0.012, (0 split)
##       goal               < 3467.17  to the left,  agree=0.523, adj=0.012, (0 split)
## 
## Node number 501: 259 observations,    complexity param=0.0002006303
##   mean=0.7837838, MSE=0.1694668 
##   left son=1002 (78 obs) right son=1003 (181 obs)
##   Primary splits:
##       mo_launched        splits as  RRRRLRRRLRLL, improve=0.04293400, (0 missing)
##       goal               < 2775     to the right, improve=0.03135380, (0 missing)
##       social_media_count splits as  RRRL,         improve=0.01908496, (0 missing)
##       campaign_duration  < 29.98    to the right, improve=0.01861316, (0 missing)
##       reward_length      < 11605.5  to the left,  improve=0.01258567, (0 missing)
##   Surrogate splits:
##       usa               < 0.5      to the left,  agree=0.710, adj=0.038, (0 split)
##       campaign_duration < 9.24     to the left,  agree=0.703, adj=0.013, (0 split)
##       reward_length     < 7781.5   to the left,  agree=0.703, adj=0.013, (0 split)
## 
## Node number 502: 60 observations,    complexity param=0.000106886
##   mean=0.7166667, MSE=0.2030556 
##   left son=1004 (33 obs) right son=1005 (27 obs)
##   Primary splits:
##       social_media_count splits as  LRRR,         improve=0.07363650, (0 missing)
##       goal               < 525      to the left,  improve=0.06082290, (0 missing)
##       reward_length      < 8746.5   to the right, improve=0.04623803, (0 missing)
##       description_length < 626      to the left,  improve=0.04328570, (0 missing)
##       mo_launched        splits as  ----RL-R---L, improve=0.03568828, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 21.085   to the right, agree=0.633, adj=0.185, (0 split)
##       reward_length      < 5069.5   to the right, agree=0.633, adj=0.185, (0 split)
##       mo_launched        splits as  ----RL-L---R, agree=0.617, adj=0.148, (0 split)
##       goal               < 175      to the right, agree=0.600, adj=0.111, (0 split)
##       description_length < 992      to the right, agree=0.600, adj=0.111, (0 split)
## 
## Node number 503: 118 observations
##   mean=0.9152542, MSE=0.07756392 
## 
## Node number 504: 1646 observations,    complexity param=0.0003228011
##   mean=0.7339004, MSE=0.1952906 
##   left son=1008 (1454 obs) right son=1009 (192 obs)
##   Primary splits:
##       goal               < 999.5    to the right, improve=0.008951356, (0 missing)
##       mo_launched        splits as  RRRRLLRLLRRL, improve=0.007212055, (0 missing)
##       reward_length      < 4185     to the left,  improve=0.004915039, (0 missing)
##       social_media_count splits as  LRLR,         improve=0.002360378, (0 missing)
##       description_length < 1365.5   to the left,  improve=0.001406122, (0 missing)
## 
## Node number 505: 1287 observations,    complexity param=0.0002197869
##   mean=0.8057498, MSE=0.1565171 
##   left son=1010 (541 obs) right son=1011 (746 obs)
##   Primary splits:
##       description_length < 2171     to the left,  improve=0.010628170, (0 missing)
##       reward_length      < 8028     to the right, improve=0.006827869, (0 missing)
##       category           splits as  -RRRLRL--R-R--R, improve=0.006147061, (0 missing)
##       goal               < 2577.05  to the right, improve=0.004959371, (0 missing)
##       social_media_count splits as  RRLR, improve=0.004675120, (0 missing)
##   Surrogate splits:
##       reward_length     < 4431     to the left,  agree=0.598, adj=0.044, (0 split)
##       mo_launched       splits as  RLRRRRRRRRRR, agree=0.585, adj=0.013, (0 split)
##       goal              < 4162.5   to the right, agree=0.584, adj=0.009, (0 split)
##       campaign_duration < 89.15    to the right, agree=0.580, adj=0.002, (0 split)
##       category          splits as  -RRRRRR--R-L--R, agree=0.580, adj=0.002, (0 split)
## 
## Node number 506: 629 observations,    complexity param=0.0001628544
##   mean=0.8012719, MSE=0.1592353 
##   left son=1012 (474 obs) right son=1013 (155 obs)
##   Primary splits:
##       description_length < 4068.5   to the left,  improve=0.014010860, (0 missing)
##       category           splits as  -RR-RRLR--R--RR, improve=0.012046780, (0 missing)
##       goal               < 1156     to the right, improve=0.010694560, (0 missing)
##       reward_length      < 15931.5  to the left,  improve=0.007685236, (0 missing)
##       campaign_duration  < 60.015   to the left,  improve=0.007024036, (0 missing)
##   Surrogate splits:
##       category splits as  -LR-LLLL--L--RR, agree=0.784, adj=0.123, (0 split)
## 
## Node number 507: 508 observations,    complexity param=0.0001095188
##   mean=0.8779528, MSE=0.1071517 
##   left son=1014 (12 obs) right son=1015 (496 obs)
##   Primary splits:
##       description_length < 7930.5   to the right, improve=0.019598520, (0 missing)
##       social_media_count splits as  RRLL,         improve=0.013656420, (0 missing)
##       goal               < 1775     to the right, improve=0.013091380, (0 missing)
##       campaign_duration  < 59.98    to the right, improve=0.007946883, (0 missing)
##       reward_length      < 10857    to the right, improve=0.007902952, (0 missing)
## 
## Node number 508: 244 observations,    complexity param=0.0001982897
##   mean=0.7663934, MSE=0.1790345 
##   left son=1016 (8 obs) right son=1017 (236 obs)
##   Primary splits:
##       usa                < 0.5      to the left,  improve=0.05048968, (0 missing)
##       description_length < 3422.5   to the right, improve=0.04414422, (0 missing)
##       mo_launched        splits as  LLRLLLLLRLLR, improve=0.02490703, (0 missing)
##       reward_length      < 6194     to the right, improve=0.01380758, (0 missing)
##       goal               < 3952.5   to the right, improve=0.01012958, (0 missing)
## 
## Node number 509: 378 observations,    complexity param=0.0001982897
##   mean=0.8756614, MSE=0.1088785 
##   left son=1018 (81 obs) right son=1019 (297 obs)
##   Primary splits:
##       mo_launched        splits as  RRRRRRRLRRLL, improve=0.03763482, (0 missing)
##       campaign_duration  < 28.37    to the right, improve=0.01583278, (0 missing)
##       description_length < 2370     to the left,  improve=0.01323262, (0 missing)
##       reward_length      < 4295.5   to the left,  improve=0.01189175, (0 missing)
##       goal               < 2062.5   to the right, improve=0.01128029, (0 missing)
##   Surrogate splits:
##       category splits as  -LL-R-R-------R, agree=0.794, adj=0.037, (0 split)
## 
## Node number 510: 521 observations,    complexity param=0.0001323152
##   mean=0.8733205, MSE=0.1106318 
##   left son=1020 (269 obs) right son=1021 (252 obs)
##   Primary splits:
##       description_length < 2559     to the left,  improve=0.022269430, (0 missing)
##       mo_launched        splits as  LRRRLRLRLRRR, improve=0.015700520, (0 missing)
##       campaign_duration  < 20.975   to the left,  improve=0.010313500, (0 missing)
##       goal               < 3900     to the right, improve=0.005880406, (0 missing)
##       reward_length      < 6579.5   to the right, improve=0.005790617, (0 missing)
##   Surrogate splits:
##       category           splits as  --LLR-RR--LR-RR, agree=0.645, adj=0.266, (0 split)
##       social_media_count splits as  RLLL, agree=0.560, adj=0.091, (0 split)
##       mo_launched        splits as  LLRLLLRRLLRR, agree=0.559, adj=0.087, (0 split)
##       reward_length      < 11845.5  to the left,  agree=0.555, adj=0.079, (0 split)
##       goal               < 2068.5   to the left,  agree=0.539, adj=0.048, (0 split)
## 
## Node number 511: 308 observations
##   mean=0.9448052, MSE=0.05214834 
## 
## Node number 556: 55 observations
##   mean=0.07272727, MSE=0.06743802 
## 
## Node number 557: 38 observations,    complexity param=0.0001282829
##   mean=0.2631579, MSE=0.1939058 
##   left son=1114 (19 obs) right son=1115 (19 obs)
##   Primary splits:
##       reward_length      < 3912.5   to the left,  improve=0.22857140, (0 missing)
##       description_length < 1062.5   to the left,  improve=0.15253970, (0 missing)
##       goal               < 10500    to the left,  improve=0.13683630, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.09523810, (0 missing)
##       campaign_duration  < 33.46    to the right, improve=0.04353741, (0 missing)
##   Surrogate splits:
##       description_length < 1062.5   to the left,  agree=0.658, adj=0.316, (0 split)
##       goal               < 10500    to the left,  agree=0.632, adj=0.263, (0 split)
##       campaign_duration  < 33.46    to the right, agree=0.605, adj=0.211, (0 split)
##       social_media_count splits as  LRL-,         agree=0.605, adj=0.211, (0 split)
##       video_status       < 0.5      to the left,  agree=0.605, adj=0.211, (0 split)
## 
## Node number 558: 43 observations,    complexity param=0.0001219232
##   mean=0.2325581, MSE=0.1784749 
##   left son=1116 (34 obs) right son=1117 (9 obs)
##   Primary splits:
##       campaign_duration  < 59.98    to the left,  improve=0.15473360, (0 missing)
##       description_length < 2000     to the right, improve=0.12510820, (0 missing)
##       category           splits as  L---------R--R-, improve=0.09602273, (0 missing)
##       reward_length      < 4417.5   to the left,  improve=0.08415584, (0 missing)
##       goal               < 9750     to the left,  improve=0.05892256, (0 missing)
##   Surrogate splits:
##       description_length < 1754.5   to the right, agree=0.814, adj=0.111, (0 split)
## 
## Node number 559: 49 observations,    complexity param=0.0001292042
##   mean=0.5510204, MSE=0.2473969 
##   left son=1118 (40 obs) right son=1119 (9 obs)
##   Primary splits:
##       goal               < 10700    to the left,  improve=0.10382060, (0 missing)
##       reward_length      < 3557     to the left,  improve=0.06530692, (0 missing)
##       campaign_duration  < 45.12    to the left,  improve=0.03650457, (0 missing)
##       description_length < 1906.5   to the right, improve=0.03122690, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.02443644, (0 missing)
## 
## Node number 570: 67 observations
##   mean=0.1492537, MSE=0.1269771 
## 
## Node number 571: 141 observations,    complexity param=0.0001521461
##   mean=0.3191489, MSE=0.2172929 
##   left son=1142 (86 obs) right son=1143 (55 obs)
##   Primary splits:
##       description_length < 2676.5   to the left,  improve=0.05395525, (0 missing)
##       category           splits as  --------L---R--, improve=0.03231916, (0 missing)
##       reward_length      < 4300.5   to the left,  improve=0.01928884, (0 missing)
##       social_media_count splits as  RLR-, improve=0.01565888, (0 missing)
##       mo_launched        splits as  --R--R-LRLRL, improve=0.01497962, (0 missing)
##   Surrogate splits:
##       reward_length < 4514     to the left,  agree=0.645, adj=0.091, (0 split)
##       mo_launched   splits as  --L--L-LLLRR, agree=0.638, adj=0.073, (0 split)
##       goal          < 6900     to the left,  agree=0.631, adj=0.055, (0 split)
## 
## Node number 572: 121 observations,    complexity param=0.000134674
##   mean=0.1983471, MSE=0.1590055 
##   left son=1144 (62 obs) right son=1145 (59 obs)
##   Primary splits:
##       reward_length     < 3950     to the left,  improve=0.06818412, (0 missing)
##       goal              < 7100     to the right, improve=0.03237306, (0 missing)
##       video_status      < 0.5      to the left,  improve=0.02789828, (0 missing)
##       campaign_duration < 56.215   to the right, improve=0.02722294, (0 missing)
##       mo_launched       splits as  ---RRLRRR-L-, improve=0.02027042, (0 missing)
##   Surrogate splits:
##       video_status       < 0.5      to the left,  agree=0.595, adj=0.169, (0 split)
##       social_media_count splits as  LRLR,         agree=0.579, adj=0.136, (0 split)
##       campaign_duration  < 50.025   to the right, agree=0.570, adj=0.119, (0 split)
##       mo_launched        splits as  ---RLLRLL-L-, agree=0.562, adj=0.102, (0 split)
##       description_length < 1113.5   to the left,  agree=0.562, adj=0.102, (0 split)
## 
## Node number 573: 68 observations,    complexity param=0.0001589134
##   mean=0.3823529, MSE=0.2361592 
##   left son=1146 (59 obs) right son=1147 (9 obs)
##   Primary splits:
##       campaign_duration  < 29.98    to the right, improve=0.10099820, (0 missing)
##       goal               < 5950     to the right, improve=0.06257550, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.02282333, (0 missing)
##       description_length < 904.5    to the right, improve=0.01937736, (0 missing)
##       reward_length      < 3183     to the left,  improve=0.01656285, (0 missing)
## 
## Node number 574: 190 observations,    complexity param=0.0002167011
##   mean=0.4, MSE=0.24 
##   left son=1148 (31 obs) right son=1149 (159 obs)
##   Primary splits:
##       video_status       < 0.5      to the left,  improve=0.04629066, (0 missing)
##       reward_length      < 4436.5   to the left,  improve=0.04255319, (0 missing)
##       description_length < 5045     to the right, improve=0.02083333, (0 missing)
##       goal               < 5067     to the right, improve=0.01376147, (0 missing)
##       campaign_duration  < 63.11    to the right, improve=0.01218893, (0 missing)
##   Surrogate splits:
##       description_length < 7609     to the right, agree=0.847, adj=0.065, (0 split)
## 
## Node number 575: 94 observations,    complexity param=0.0001334936
##   mean=0.6382979, MSE=0.2308737 
##   left son=1150 (14 obs) right son=1151 (80 obs)
##   Primary splits:
##       campaign_duration  < 54.015   to the right, improve=0.05991772, (0 missing)
##       description_length < 3750.5   to the right, improve=0.03582359, (0 missing)
##       goal               < 4575     to the left,  improve=0.02793263, (0 missing)
##       reward_length      < 4274.5   to the left,  improve=0.02292781, (0 missing)
##       mo_launched        splits as  -L----RLR---, improve=0.01365445, (0 missing)
## 
## Node number 590: 7 observations
##   mean=0.1428571, MSE=0.122449 
## 
## Node number 591: 18 observations
##   mean=0.6666667, MSE=0.2222222 
## 
## Node number 596: 32 observations
##   mean=0.15625, MSE=0.1318359 
## 
## Node number 597: 7 observations
##   mean=0.5714286, MSE=0.244898 
## 
## Node number 598: 7 observations
##   mean=0.1428571, MSE=0.122449 
## 
## Node number 599: 23 observations,    complexity param=0.0001709784
##   mean=0.6956522, MSE=0.2117202 
##   left son=1198 (7 obs) right son=1199 (16 obs)
##   Primary splits:
##       goal               < 6200     to the right, improve=0.34725770, (0 missing)
##       reward_length      < 2682.5   to the right, improve=0.28125000, (0 missing)
##       mo_launched        splits as  -L-R-LR-R-RL, improve=0.09767316, (0 missing)
##       campaign_duration  < 46.265   to the left,  improve=0.05959467, (0 missing)
##       description_length < 1168     to the right, improve=0.03956044, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  -R-R-LR-R-RL, agree=0.783, adj=0.286, (0 split)
##       description_length < 888      to the left,  agree=0.739, adj=0.143, (0 split)
##       reward_length      < 3598     to the right, agree=0.739, adj=0.143, (0 split)
## 
## Node number 604: 8 observations
##   mean=0.125, MSE=0.109375 
## 
## Node number 605: 20 observations,    complexity param=0.0001533001
##   mean=0.6, MSE=0.24 
##   left son=1210 (13 obs) right son=1211 (7 obs)
##   Primary splits:
##       mo_launched        splits as  RRLLRLL-LRR-, improve=0.35897440, (0 missing)
##       goal               < 5800     to the left,  improve=0.21006940, (0 missing)
##       reward_length      < 4097     to the left,  improve=0.06593407, (0 missing)
##       description_length < 767      to the left,  improve=0.06250000, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 31.03    to the left,  agree=0.75, adj=0.286, (0 split)
##       reward_length      < 4395     to the left,  agree=0.75, adj=0.286, (0 split)
##       goal               < 6350     to the left,  agree=0.70, adj=0.143, (0 split)
##       description_length < 883.5    to the left,  agree=0.70, adj=0.143, (0 split)
## 
## Node number 606: 13 observations
##   mean=0.5384615, MSE=0.2485207 
## 
## Node number 607: 22 observations
##   mean=0.9090909, MSE=0.08264463 
## 
## Node number 624: 37 observations
##   mean=0.08108108, MSE=0.07450694 
## 
## Node number 625: 8 observations
##   mean=0.625, MSE=0.234375 
## 
## Node number 626: 71 observations,    complexity param=0.0001494703
##   mean=0.4647887, MSE=0.2487602 
##   left son=1252 (14 obs) right son=1253 (57 obs)
##   Primary splits:
##       mo_launched        splits as  RLRRRRRRRLRL, improve=0.06195812, (0 missing)
##       reward_length      < 4614.5   to the left,  improve=0.04664120, (0 missing)
##       description_length < 2240     to the right, improve=0.03994377, (0 missing)
##       campaign_duration  < 41.19    to the left,  improve=0.03052930, (0 missing)
##       goal               < 8475     to the right, improve=0.01204800, (0 missing)
##   Surrogate splits:
##       description_length < 1740     to the left,  agree=0.817, adj=0.071, (0 split)
## 
## Node number 627: 50 observations,    complexity param=0.0001115444
##   mean=0.7, MSE=0.21 
##   left son=1254 (41 obs) right son=1255 (9 obs)
##   Primary splits:
##       reward_length      < 3987     to the right, improve=0.09407666, (0 missing)
##       mo_launched        splits as  LRRRLRRRRLRR, improve=0.07407407, (0 missing)
##       goal               < 14500    to the right, improve=0.04761905, (0 missing)
##       description_length < 3650.5   to the right, improve=0.04136367, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.03628118, (0 missing)
##   Surrogate splits:
##       mo_launched splits as  LLLLLLRLLLLR, agree=0.88, adj=0.333, (0 split)
## 
## Node number 630: 29 observations,    complexity param=0.0001686254
##   mean=0.5172414, MSE=0.2497027 
##   left son=1260 (8 obs) right son=1261 (21 obs)
##   Primary splits:
##       mo_launched        splits as  RLLRRLLRLRRR, improve=0.2347222, (0 missing)
##       description_length < 2045.5   to the right, improve=0.2066163, (0 missing)
##       goal               < 5500     to the left,  improve=0.1472171, (0 missing)
##       campaign_duration  < 35.37    to the right, improve=0.1428800, (0 missing)
##       reward_length      < 3220.5   to the right, improve=0.1223280, (0 missing)
##   Surrogate splits:
##       reward_length < 4472.5   to the right, agree=0.759, adj=0.125, (0 split)
## 
## Node number 631: 186 observations,    complexity param=0.0001686254
##   mean=0.7473118, MSE=0.1888369 
##   left son=1262 (43 obs) right son=1263 (143 obs)
##   Primary splits:
##       description_length < 2035.5   to the left,  improve=0.043835370, (0 missing)
##       mo_launched        splits as  RRRRRRRRRLRR, improve=0.039927270, (0 missing)
##       campaign_duration  < 59.98    to the right, improve=0.019915560, (0 missing)
##       goal               < 4900     to the right, improve=0.013094610, (0 missing)
##       social_media_count splits as  RLL-,         improve=0.006589456, (0 missing)
##   Surrogate splits:
##       campaign_duration < 89.19    to the right, agree=0.78, adj=0.047, (0 split)
## 
## Node number 644: 147 observations
##   mean=0.07482993, MSE=0.06923041 
## 
## Node number 645: 195 observations,    complexity param=0.000131372
##   mean=0.1846154, MSE=0.1505325 
##   left son=1290 (107 obs) right son=1291 (88 obs)
##   Primary splits:
##       goal               < 12170    to the right, improve=0.032181440, (0 missing)
##       description_length < 958.5    to the left,  improve=0.023362490, (0 missing)
##       reward_length      < 10391    to the right, improve=0.013535680, (0 missing)
##       campaign_duration  < 65.75    to the right, improve=0.010955570, (0 missing)
##       category           splits as  R-------R---LL-, improve=0.006682473, (0 missing)
##   Surrogate splits:
##       category           splits as  L-------R---LR-, agree=0.590, adj=0.091, (0 split)
##       description_length < 1287.5   to the right, agree=0.579, adj=0.068, (0 split)
##       social_media_count splits as  LRL-, agree=0.574, adj=0.057, (0 split)
##       usa                < 0.5      to the right, agree=0.569, adj=0.045, (0 split)
##       campaign_duration  < 82.055   to the left,  agree=0.564, adj=0.034, (0 split)
## 
## Node number 646: 330 observations,    complexity param=0.0001303732
##   mean=0.230303, MSE=0.1772635 
##   left son=1292 (45 obs) right son=1293 (285 obs)
##   Primary splits:
##       reward_length      < 5549     to the left,  improve=0.01781287, (0 missing)
##       mo_launched        splits as  LLRRLRLRRRLR, improve=0.01523000, (0 missing)
##       campaign_duration  < 59.545   to the right, improve=0.01265441, (0 missing)
##       description_length < 1921.5   to the left,  improve=0.01227055, (0 missing)
##       goal               < 17250    to the left,  improve=0.01183191, (0 missing)
##   Surrogate splits:
##       goal < 31707.5  to the right, agree=0.867, adj=0.022, (0 split)
## 
## Node number 647: 474 observations,    complexity param=0.0001916147
##   mean=0.3438819, MSE=0.2256271 
##   left son=1294 (306 obs) right son=1295 (168 obs)
##   Primary splits:
##       mo_launched        splits as  LLRRLRLLRLLL, improve=0.017452450, (0 missing)
##       reward_length      < 7192.5   to the left,  improve=0.014148540, (0 missing)
##       description_length < 3596.5   to the left,  improve=0.012903440, (0 missing)
##       goal               < 9810     to the left,  improve=0.008997695, (0 missing)
##       category           splits as  R-------L---LL-, improve=0.008856788, (0 missing)
##   Surrogate splits:
##       social_media_count splits as  LLLR,         agree=0.65, adj=0.012, (0 split)
##       description_length < 1862     to the right, agree=0.65, adj=0.012, (0 split)
## 
## Node number 648: 175 observations,    complexity param=0.0001145255
##   mean=0.1371429, MSE=0.1183347 
##   left son=1296 (86 obs) right son=1297 (89 obs)
##   Primary splits:
##       mo_launched        splits as  RLRRRLLRRLLL, improve=0.05096676, (0 missing)
##       category           splits as  L-------R---L--, improve=0.04251581, (0 missing)
##       reward_length      < 6800.5   to the left,  improve=0.02776279, (0 missing)
##       campaign_duration  < 41.555   to the right, improve=0.02617779, (0 missing)
##       social_media_count splits as  LRR-, improve=0.02506215, (0 missing)
##   Surrogate splits:
##       campaign_duration < 30.02    to the right, agree=0.611, adj=0.209, (0 split)
##       reward_length     < 8635     to the right, agree=0.571, adj=0.128, (0 split)
##       usa               < 0.5      to the left,  agree=0.554, adj=0.093, (0 split)
##       goal              < 33166.5  to the left,  agree=0.554, adj=0.093, (0 split)
##       category          splits as  L-------R---L--, agree=0.549, adj=0.081, (0 split)
## 
## Node number 649: 58 observations,    complexity param=0.0001315896
##   mean=0.3793103, MSE=0.235434 
##   left son=1298 (44 obs) right son=1299 (14 obs)
##   Primary splits:
##       mo_launched        splits as  L-LLLLRLLRLL, improve=0.09386888, (0 missing)
##       description_length < 6049.5   to the left,  improve=0.06903409, (0 missing)
##       goal               < 157750   to the right, improve=0.04395202, (0 missing)
##       reward_length      < 11207.5  to the right, improve=0.02845118, (0 missing)
##       campaign_duration  < 40.81    to the left,  improve=0.02151770, (0 missing)
##   Surrogate splits:
##       social_media_count splits as  LLR-,         agree=0.810, adj=0.214, (0 split)
##       reward_length      < 11245.5  to the left,  agree=0.776, adj=0.071, (0 split)
## 
## Node number 650: 241 observations,    complexity param=0.0001671798
##   mean=0.2697095, MSE=0.1969663 
##   left son=1300 (122 obs) right son=1301 (119 obs)
##   Primary splits:
##       reward_length      < 8764     to the left,  improve=0.03430615, (0 missing)
##       mo_launched        splits as  R-L-RR-R--L-, improve=0.01977623, (0 missing)
##       campaign_duration  < 58.71    to the left,  improve=0.01554808, (0 missing)
##       social_media_count splits as  RRLL,         improve=0.01475209, (0 missing)
##       description_length < 8257.5   to the right, improve=0.01466289, (0 missing)
##   Surrogate splits:
##       description_length < 7488     to the left,  agree=0.589, adj=0.168, (0 split)
##       category           splits as  R-------R---L--, agree=0.548, adj=0.084, (0 split)
##       campaign_duration  < 32.41    to the left,  agree=0.539, adj=0.067, (0 split)
##       video_status       < 0.5      to the left,  agree=0.539, adj=0.067, (0 split)
##       mo_launched        splits as  L-R-LR-L--L-, agree=0.539, adj=0.067, (0 split)
## 
## Node number 651: 221 observations,    complexity param=0.000306811
##   mean=0.4660633, MSE=0.2488483 
##   left son=1302 (194 obs) right son=1303 (27 obs)
##   Primary splits:
##       campaign_duration  < 29.73    to the right, improve=0.05434269, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.05011759, (0 missing)
##       description_length < 11490.5  to the left,  improve=0.03754320, (0 missing)
##       reward_length      < 6257.5   to the left,  improve=0.02195781, (0 missing)
##       usa                < 0.5      to the left,  improve=0.01783364, (0 missing)
##   Surrogate splits:
##       social_media_count splits as  LLLR, agree=0.882, adj=0.037, (0 split)
## 
## Node number 654: 236 observations,    complexity param=0.0001486531
##   mean=0.4618644, MSE=0.2485457 
##   left son=1308 (130 obs) right son=1309 (106 obs)
##   Primary splits:
##       mo_launched        splits as  RRLLRLLRLRLR, improve=0.02387313, (0 missing)
##       social_media_count splits as  LRRL,         improve=0.02384137, (0 missing)
##       reward_length      < 10485    to the left,  improve=0.02268320, (0 missing)
##       campaign_duration  < 55.56    to the right, improve=0.01542636, (0 missing)
##       goal               < 96450    to the left,  improve=0.01259475, (0 missing)
##   Surrogate splits:
##       social_media_count splits as  LRRR,         agree=0.593, adj=0.094, (0 split)
##       reward_length      < 10097    to the left,  agree=0.589, adj=0.085, (0 split)
##       campaign_duration  < 25.005   to the right, agree=0.568, adj=0.038, (0 split)
##       goal               < 99500    to the left,  agree=0.568, adj=0.038, (0 split)
##       description_length < 11355.5  to the left,  agree=0.568, adj=0.038, (0 split)
## 
## Node number 655: 28 observations,    complexity param=0.0002503922
##   mean=0.75, MSE=0.1875 
##   left son=1310 (8 obs) right son=1311 (20 obs)
##   Primary splits:
##       mo_launched        splits as  RLR-RRLLLRRR, improve=0.53333330, (0 missing)
##       description_length < 7240.5   to the left,  improve=0.20683760, (0 missing)
##       reward_length      < 9555     to the left,  improve=0.04873294, (0 missing)
##       campaign_duration  < 33.52    to the right, improve=0.03333333, (0 missing)
##   Surrogate splits:
##       reward_length < 6037.5   to the left,  agree=0.821, adj=0.375, (0 split)
## 
## Node number 656: 164 observations,    complexity param=0.0001458735
##   mean=0.1402439, MSE=0.1205756 
##   left son=1312 (88 obs) right son=1313 (76 obs)
##   Primary splits:
##       goal               < 5350     to the left,  improve=0.04986817, (0 missing)
##       campaign_duration  < 30.06    to the left,  improve=0.03362260, (0 missing)
##       description_length < 1718     to the left,  improve=0.02614681, (0 missing)
##       mo_launched        splits as  LLLRLLLLLLRL, improve=0.01641833, (0 missing)
##       reward_length      < 8978     to the left,  improve=0.01641833, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  LLLLLLLRLRLL, agree=0.616, adj=0.171, (0 split)
##       description_length < 1046.5   to the right, agree=0.585, adj=0.105, (0 split)
##       reward_length      < 8428.5   to the left,  agree=0.561, adj=0.053, (0 split)
##       social_media_count splits as  LRR-,         agree=0.555, adj=0.039, (0 split)
##       campaign_duration  < 40.33    to the right, agree=0.549, adj=0.026, (0 split)
## 
## Node number 657: 28 observations,    complexity param=0.0001976813
##   mean=0.3571429, MSE=0.2295918 
##   left son=1314 (15 obs) right son=1315 (13 obs)
##   Primary splits:
##       campaign_duration  < 40.35    to the right, improve=0.4240456, (0 missing)
##       mo_launched        splits as  LRLRRLR-RRLL, improve=0.2449074, (0 missing)
##       reward_length      < 6556.5   to the left,  improve=0.1600000, (0 missing)
##       description_length < 7333.5   to the right, improve=0.1600000, (0 missing)
##       goal               < 6150     to the right, improve=0.1248863, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  LRLLRLL-LRLL, agree=0.714, adj=0.385, (0 split)
##       reward_length      < 8747.5   to the left,  agree=0.679, adj=0.308, (0 split)
##       description_length < 5587     to the left,  agree=0.643, adj=0.231, (0 split)
##       goal               < 5000.005 to the right, agree=0.607, adj=0.154, (0 split)
##       usa                < 0.5      to the right, agree=0.571, adj=0.077, (0 split)
## 
## Node number 662: 14 observations
##   mean=0.5, MSE=0.25 
## 
## Node number 663: 9 observations
##   mean=1, MSE=0 
## 
## Node number 664: 357 observations,    complexity param=0.0001262147
##   mean=0.3389356, MSE=0.2240583 
##   left son=1328 (13 obs) right son=1329 (344 obs)
##   Primary splits:
##       description_length < 881      to the left,  improve=0.011578920, (0 missing)
##       reward_length      < 8834     to the right, improve=0.010927650, (0 missing)
##       usa                < 0.5      to the left,  improve=0.008274846, (0 missing)
##       goal               < 5150     to the right, improve=0.006300919, (0 missing)
##       campaign_duration  < 62.25    to the left,  improve=0.006051674, (0 missing)
## 
## Node number 665: 398 observations,    complexity param=0.0002063601
##   mean=0.4396985, MSE=0.2463637 
##   left son=1330 (311 obs) right son=1331 (87 obs)
##   Primary splits:
##       description_length < 5163     to the left,  improve=0.017324310, (0 missing)
##       campaign_duration  < 40.07    to the right, improve=0.016360550, (0 missing)
##       reward_length      < 5426     to the left,  improve=0.014873580, (0 missing)
##       usa                < 0.5      to the left,  improve=0.009133691, (0 missing)
##       goal               < 5750     to the right, improve=0.007760314, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 82.195   to the left,  agree=0.784, adj=0.011, (0 split)
##       social_media_count splits as  LLLR,         agree=0.784, adj=0.011, (0 split)
## 
## Node number 666: 241 observations,    complexity param=0.0002168598
##   mean=0.439834, MSE=0.2463801 
##   left son=1332 (45 obs) right son=1333 (196 obs)
##   Primary splits:
##       campaign_duration  < 41.115   to the right, improve=0.035575720, (0 missing)
##       description_length < 1405.5   to the left,  improve=0.030374760, (0 missing)
##       reward_length      < 6486     to the left,  improve=0.021548900, (0 missing)
##       social_media_count splits as  LLRL, improve=0.009145521, (0 missing)
##       category           splits as  L------------R-, improve=0.006828279, (0 missing)
## 
## Node number 667: 195 observations,    complexity param=0.0002003945
##   mean=0.6051282, MSE=0.2389481 
##   left son=1334 (70 obs) right son=1335 (125 obs)
##   Primary splits:
##       description_length < 2106     to the left,  improve=0.041893340, (0 missing)
##       goal               < 4575     to the right, improve=0.031574630, (0 missing)
##       campaign_duration  < 60.375   to the left,  improve=0.017365810, (0 missing)
##       reward_length      < 5914.5   to the right, improve=0.015947820, (0 missing)
##       mo_launched        splits as  -LRRLL------, improve=0.008325491, (0 missing)
##   Surrogate splits:
##       campaign_duration < 78.5     to the right, agree=0.651, adj=0.029, (0 split)
##       reward_length     < 4844.5   to the left,  agree=0.651, adj=0.029, (0 split)
## 
## Node number 668: 164 observations,    complexity param=0.0001448183
##   mean=0.4268293, MSE=0.244646 
##   left son=1336 (61 obs) right son=1337 (103 obs)
##   Primary splits:
##       goal               < 6583     to the right, improve=0.03221207, (0 missing)
##       mo_launched        splits as  ----RRR---LL, improve=0.02522369, (0 missing)
##       description_length < 6494     to the left,  improve=0.02403192, (0 missing)
##       reward_length      < 9190     to the right, improve=0.01505928, (0 missing)
##       category           splits as  L-------R---LL-, improve=0.01323482, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 39.945   to the right, agree=0.646, adj=0.049, (0 split)
##       description_length < 16780    to the right, agree=0.646, adj=0.049, (0 split)
##       reward_length      < 11434.5  to the right, agree=0.640, adj=0.033, (0 split)
## 
## Node number 669: 16 observations
##   mean=0.8125, MSE=0.1523438 
## 
## Node number 670: 11 observations
##   mean=0.2727273, MSE=0.1983471 
## 
## Node number 671: 210 observations,    complexity param=0.0001769594
##   mean=0.6904762, MSE=0.2137188 
##   left son=1342 (16 obs) right son=1343 (194 obs)
##   Primary splits:
##       campaign_duration  < 59.72    to the right, improve=0.03840685, (0 missing)
##       description_length < 4994     to the left,  improve=0.02511013, (0 missing)
##       goal               < 5525     to the left,  improve=0.01283820, (0 missing)
##       mo_launched        splits as  LLRL---LRL--, improve=0.01256469, (0 missing)
##       usa                < 0.5      to the left,  improve=0.01212581, (0 missing)
## 
## Node number 680: 115 observations,    complexity param=0.0001489766
##   mean=0.2608696, MSE=0.1928166 
##   left son=1360 (29 obs) right son=1361 (86 obs)
##   Primary splits:
##       reward_length      < 13418.5  to the left,  improve=0.06440555, (0 missing)
##       campaign_duration  < 37.73    to the right, improve=0.04712854, (0 missing)
##       description_length < 6190.5   to the left,  improve=0.02236566, (0 missing)
##       goal               < 32500    to the right, improve=0.01577275, (0 missing)
##       usa                < 0.5      to the left,  improve=0.01278245, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 60.02    to the right, agree=0.757, adj=0.034, (0 split)
##       social_media_count splits as  RRRL,         agree=0.757, adj=0.034, (0 split)
##       goal               < 550000   to the right, agree=0.757, adj=0.034, (0 split)
## 
## Node number 681: 222 observations,    complexity param=0.0002041249
##   mean=0.4144144, MSE=0.2426751 
##   left son=1362 (58 obs) right son=1363 (164 obs)
##   Primary splits:
##       description_length < 7132.5   to the left,  improve=0.035371940, (0 missing)
##       goal               < 41000    to the right, improve=0.028990660, (0 missing)
##       reward_length      < 17746.5  to the left,  improve=0.023414000, (0 missing)
##       campaign_duration  < 59.45    to the right, improve=0.012903020, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.006431454, (0 missing)
##   Surrogate splits:
##       video_status       < 0.5      to the left,  agree=0.752, adj=0.052, (0 split)
##       campaign_duration  < 22.97    to the left,  agree=0.748, adj=0.034, (0 split)
##       social_media_count splits as  RRRL,         agree=0.743, adj=0.017, (0 split)
##       goal               < 29250    to the left,  agree=0.743, adj=0.017, (0 split)
## 
## Node number 682: 45 observations
##   mean=0.4222222, MSE=0.2439506 
## 
## Node number 683: 47 observations
##   mean=0.8085106, MSE=0.1548212 
## 
## Node number 684: 97 observations,    complexity param=0.000200424
##   mean=0.4948454, MSE=0.2499734 
##   left son=1368 (57 obs) right son=1369 (40 obs)
##   Primary splits:
##       description_length < 14613    to the left,  improve=0.09111339, (0 missing)
##       reward_length      < 26949    to the left,  improve=0.07017017, (0 missing)
##       category           splits as  L-------R---LR-, improve=0.06361685, (0 missing)
##       goal               < 475000   to the left,  improve=0.05349457, (0 missing)
##       social_media_count splits as  RLLR, improve=0.04032123, (0 missing)
##   Surrogate splits:
##       goal               < 475000   to the left,  agree=0.680, adj=0.225, (0 split)
##       mo_launched        splits as  LL--R-L-LRL-, agree=0.639, adj=0.125, (0 split)
##       reward_length      < 23607    to the right, agree=0.639, adj=0.125, (0 split)
##       campaign_duration  < 59.98    to the left,  agree=0.619, adj=0.075, (0 split)
##       social_media_count splits as  LLLR,         agree=0.598, adj=0.025, (0 split)
## 
## Node number 685: 11 observations
##   mean=0.9090909, MSE=0.08264463 
## 
## Node number 688: 311 observations,    complexity param=0.0002004815
##   mean=0.4083601, MSE=0.2416021 
##   left son=1376 (59 obs) right son=1377 (252 obs)
##   Primary splits:
##       mo_launched        splits as  LRRRRRRRLRRL, improve=0.018234440, (0 missing)
##       description_length < 3481     to the left,  improve=0.016963760, (0 missing)
##       reward_length      < 18707    to the right, improve=0.010898720, (0 missing)
##       goal               < 6775     to the right, improve=0.007914854, (0 missing)
##       usa                < 0.5      to the left,  improve=0.007133915, (0 missing)
##   Surrogate splits:
##       description_length < 15       to the left,  agree=0.817, adj=0.034, (0 split)
##       reward_length      < 19175    to the right, agree=0.814, adj=0.017, (0 split)
## 
## Node number 689: 64 observations,    complexity param=0.0002230332
##   mean=0.59375, MSE=0.2412109 
##   left son=1378 (16 obs) right son=1379 (48 obs)
##   Primary splits:
##       description_length < 3753     to the right, improve=0.16329280, (0 missing)
##       mo_launched        splits as  RLRLRRLLLRRR, improve=0.08797635, (0 missing)
##       reward_length      < 21954    to the right, improve=0.03265857, (0 missing)
##       social_media_count splits as  RLR-,         improve=0.02523380, (0 missing)
##       goal               < 6975     to the right, improve=0.02127346, (0 missing)
##   Surrogate splits:
##       mo_launched       splits as  RRRLRRRLRRRR, agree=0.812, adj=0.250, (0 split)
##       campaign_duration < 76.13    to the right, agree=0.781, adj=0.125, (0 split)
##       reward_length     < 49532    to the right, agree=0.766, adj=0.062, (0 split)
## 
## Node number 690: 47 observations,    complexity param=0.0001134027
##   mean=0.5744681, MSE=0.2444545 
##   left son=1380 (22 obs) right son=1381 (25 obs)
##   Primary splits:
##       goal               < 6500     to the right, improve=0.09845455, (0 missing)
##       reward_length      < 19670.5  to the right, improve=0.08834283, (0 missing)
##       campaign_duration  < 19.935   to the left,  improve=0.08400538, (0 missing)
##       description_length < 1797     to the left,  improve=0.05968915, (0 missing)
##       mo_launched        splits as  LLRRLRRRR--L, improve=0.02228395, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  RRLLRLRRL--R, agree=0.681, adj=0.318, (0 split)
##       description_length < 3805.5   to the right, agree=0.681, adj=0.318, (0 split)
##       reward_length      < 17384.5  to the right, agree=0.638, adj=0.227, (0 split)
##       campaign_duration  < 18.32    to the left,  agree=0.617, adj=0.182, (0 split)
##       social_media_count splits as  RRL-,         agree=0.574, adj=0.091, (0 split)
## 
## Node number 691: 16 observations
##   mean=0.875, MSE=0.109375 
## 
## Node number 692: 260 observations,    complexity param=0.0001788184
##   mean=0.5230769, MSE=0.2494675 
##   left son=1384 (21 obs) right son=1385 (239 obs)
##   Primary splits:
##       video_status       < 0.5      to the left,  improve=0.02860496, (0 missing)
##       reward_length      < 22066.5  to the left,  improve=0.02024035, (0 missing)
##       campaign_duration  < 50.74    to the right, improve=0.01467640, (0 missing)
##       mo_launched        splits as  --LRLR-L-RLL, improve=0.01401186, (0 missing)
##       description_length < 4778.5   to the right, improve=0.01237736, (0 missing)
##   Surrogate splits:
##       social_media_count splits as  RRRL,         agree=0.923, adj=0.048, (0 split)
##       description_length < 28098    to the right, agree=0.923, adj=0.048, (0 split)
## 
## Node number 693: 36 observations,    complexity param=0.000146991
##   mean=0.75, MSE=0.1875 
##   left son=1386 (14 obs) right son=1387 (22 obs)
##   Primary splits:
##       mo_launched        splits as  --LLRL-L-RRR, improve=0.2121212, (0 missing)
##       description_length < 6677     to the left,  improve=0.1788360, (0 missing)
##       category           splits as  L-----------R--, improve=0.1666667, (0 missing)
##       campaign_duration  < 20.995   to the left,  improve=0.1282051, (0 missing)
##       goal               < 12500    to the left,  improve=0.0952381, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 20.14    to the left,  agree=0.667, adj=0.143, (0 split)
##       category           splits as  L-----------R--, agree=0.667, adj=0.143, (0 split)
##       goal               < 7650     to the right, agree=0.639, adj=0.071, (0 split)
##       description_length < 11349.5  to the right, agree=0.639, adj=0.071, (0 split)
##       reward_length      < 12438    to the left,  agree=0.639, adj=0.071, (0 split)
## 
## Node number 694: 84 observations,    complexity param=0.0002238739
##   mean=0.6666667, MSE=0.2222222 
##   left son=1388 (59 obs) right son=1389 (25 obs)
##   Primary splits:
##       reward_length      < 21125.5  to the left,  improve=0.08677966, (0 missing)
##       description_length < 9881     to the right, improve=0.04678363, (0 missing)
##       campaign_duration  < 31.755   to the right, improve=0.03134796, (0 missing)
##       mo_launched        splits as  LR----L-R---, improve=0.02307692, (0 missing)
##       usa                < 0.5      to the left,  improve=0.01315789, (0 missing)
##   Surrogate splits:
##       description_length < 11830    to the left,  agree=0.750, adj=0.16, (0 split)
##       campaign_duration  < 46.765   to the left,  agree=0.738, adj=0.12, (0 split)
##       mo_launched        splits as  LR----L-L---, agree=0.738, adj=0.12, (0 split)
##       goal               < 23500    to the left,  agree=0.714, adj=0.04, (0 split)
## 
## Node number 695: 48 observations
##   mean=0.8958333, MSE=0.09331597 
## 
## Node number 696: 188 observations,    complexity param=0.0001875995
##   mean=0.5159574, MSE=0.2497454 
##   left son=1392 (177 obs) right son=1393 (11 obs)
##   Primary splits:
##       campaign_duration  < 46.96    to the left,  improve=0.03845936, (0 missing)
##       usa                < 0.5      to the left,  improve=0.03631835, (0 missing)
##       social_media_count splits as  LRL-,         improve=0.03021166, (0 missing)
##       mo_launched        splits as  LLLLRRRLRLLL, improve=0.03012335, (0 missing)
##       description_length < 4106.5   to the left,  improve=0.01977902, (0 missing)
##   Surrogate splits:
##       description_length < 1573     to the right, agree=0.952, adj=0.182, (0 split)
## 
## Node number 697: 33 observations
##   mean=0.9090909, MSE=0.08264463 
## 
## Node number 698: 124 observations,    complexity param=0.0002238936
##   mean=0.6451613, MSE=0.2289282 
##   left son=1396 (60 obs) right son=1397 (64 obs)
##   Primary splits:
##       campaign_duration  < 30.02    to the left,  improve=0.08629261, (0 missing)
##       reward_length      < 12188.5  to the left,  improve=0.03423270, (0 missing)
##       social_media_count splits as  LRR-,         improve=0.03226470, (0 missing)
##       description_length < 5059     to the left,  improve=0.02663550, (0 missing)
##       goal               < 5550     to the right, improve=0.02286255, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  -RL--L-L-R--, agree=0.629, adj=0.233, (0 split)
##       description_length < 6168     to the right, agree=0.565, adj=0.100, (0 split)
##       usa                < 0.5      to the left,  agree=0.556, adj=0.083, (0 split)
##       reward_length      < 12394.5  to the left,  agree=0.556, adj=0.083, (0 split)
##       goal               < 6150     to the left,  agree=0.548, adj=0.067, (0 split)
## 
## Node number 699: 123 observations
##   mean=0.8211382, MSE=0.1468702 
## 
## Node number 700: 24 observations,    complexity param=0.0001451126
##   mean=0.5, MSE=0.25 
##   left son=1400 (12 obs) right son=1401 (12 obs)
##   Primary splits:
##       reward_length      < 21326.5  to the left,  improve=0.250000000, (0 missing)
##       campaign_duration  < 34.935   to the left,  improve=0.075630250, (0 missing)
##       description_length < 8254     to the left,  improve=0.075630250, (0 missing)
##       social_media_count splits as  LRR-,         improve=0.031250000, (0 missing)
##       goal               < 19250    to the left,  improve=0.008403361, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  L--R--L---R-, agree=0.667, adj=0.333, (0 split)
##       description_length < 15375    to the left,  agree=0.667, adj=0.333, (0 split)
##       campaign_duration  < 30.585   to the right, agree=0.583, adj=0.167, (0 split)
##       usa                < 0.5      to the right, agree=0.583, adj=0.167, (0 split)
##       category           splits as  --------L----R-, agree=0.583, adj=0.167, (0 split)
## 
## Node number 701: 55 observations
##   mean=0.7818182, MSE=0.1705785 
## 
## Node number 702: 33 observations,    complexity param=0.0001518884
##   mean=0.6969697, MSE=0.2112029 
##   left son=1404 (23 obs) right son=1405 (10 obs)
##   Primary splits:
##       mo_launched        splits as  -LRRLLLLLRLR, improve=0.18903590, (0 missing)
##       campaign_duration  < 29.98    to the right, improve=0.11705690, (0 missing)
##       description_length < 4208     to the right, improve=0.11322460, (0 missing)
##       reward_length      < 19390.5  to the left,  improve=0.07986767, (0 missing)
##       social_media_count splits as  LR--,         improve=0.05031056, (0 missing)
##   Surrogate splits:
##       description_length < 4745     to the left,  agree=0.758, adj=0.2, (0 split)
##       reward_length      < 34385.5  to the left,  agree=0.727, adj=0.1, (0 split)
## 
## Node number 703: 118 observations
##   mean=0.9237288, MSE=0.07045389 
## 
## Node number 708: 27 observations
##   mean=0.03703704, MSE=0.03566529 
## 
## Node number 709: 37 observations,    complexity param=0.0001045788
##   mean=0.2702703, MSE=0.1972243 
##   left son=1418 (12 obs) right son=1419 (25 obs)
##   Primary splits:
##       goal               < 112500   to the right, improve=0.17777780, (0 missing)
##       reward_length      < 18355.5  to the left,  improve=0.12202670, (0 missing)
##       social_media_count splits as  LR--,         improve=0.09910837, (0 missing)
##       description_length < 3804.5   to the left,  improve=0.07381865, (0 missing)
##       campaign_duration  < 31.45    to the left,  improve=0.03791939, (0 missing)
##   Surrogate splits:
##       description_length < 1052.5   to the left,  agree=0.784, adj=0.333, (0 split)
## 
## Node number 712: 56 observations
##   mean=0.05357143, MSE=0.05070153 
## 
## Node number 713: 126 observations,    complexity param=0.0001621671
##   mean=0.2936508, MSE=0.20742 
##   left son=1426 (58 obs) right son=1427 (68 obs)
##   Primary splits:
##       mo_launched        splits as  RLRL--LLRRRL, improve=0.06044200, (0 missing)
##       reward_length      < 8097.5   to the left,  improve=0.03976551, (0 missing)
##       description_length < 9023.5   to the left,  improve=0.02555929, (0 missing)
##       campaign_duration  < 35.175   to the right, improve=0.02459763, (0 missing)
##       usa                < 0.5      to the left,  improve=0.02445473, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 35.655   to the right, agree=0.635, adj=0.207, (0 split)
##       goal               < 76000    to the right, agree=0.611, adj=0.155, (0 split)
##       reward_length      < 9110     to the left,  agree=0.595, adj=0.121, (0 split)
##       description_length < 11626.5  to the right, agree=0.587, adj=0.103, (0 split)
##       social_media_count splits as  RRL-,         agree=0.556, adj=0.034, (0 split)
## 
## Node number 714: 8 observations
##   mean=0.125, MSE=0.109375 
## 
## Node number 715: 20 observations,    complexity param=0.0001511907
##   mean=0.7, MSE=0.21 
##   left son=1430 (11 obs) right son=1431 (9 obs)
##   Primary splits:
##       mo_launched        splits as  R--R--RLLLRL, improve=0.3506494, (0 missing)
##       description_length < 8697     to the left,  improve=0.2857143, (0 missing)
##       reward_length      < 47232    to the left,  improve=0.2307692, (0 missing)
##       campaign_duration  < 34.685   to the right, improve=0.1889063, (0 missing)
##       social_media_count splits as  LRR-,         improve=0.1390091, (0 missing)
##   Surrogate splits:
##       description_length < 9138.5   to the left,  agree=0.80, adj=0.556, (0 split)
##       reward_length      < 46007    to the left,  agree=0.70, adj=0.333, (0 split)
##       campaign_duration  < 30.31    to the left,  agree=0.65, adj=0.222, (0 split)
##       video_status       < 0.5      to the right, agree=0.65, adj=0.222, (0 split)
##       social_media_count splits as  LLR-,         agree=0.60, adj=0.111, (0 split)
## 
## Node number 736: 94 observations
##   mean=0.07446809, MSE=0.06892259 
## 
## Node number 737: 202 observations,    complexity param=0.0002205681
##   mean=0.2376238, MSE=0.1811587 
##   left son=1474 (139 obs) right son=1475 (63 obs)
##   Primary splits:
##       mo_launched        splits as  LLRLLRRLRLLL, improve=0.05139636, (0 missing)
##       campaign_duration  < 32.955   to the right, improve=0.04283153, (0 missing)
##       goal               < 25500    to the right, improve=0.03370998, (0 missing)
##       description_length < 1801.5   to the left,  improve=0.03268864, (0 missing)
##       reward_length      < 7209     to the right, improve=0.01167442, (0 missing)
## 
## Node number 744: 110 observations
##   mean=0.1727273, MSE=0.1428926 
## 
## Node number 745: 9 observations
##   mean=0.6666667, MSE=0.2222222 
## 
## Node number 746: 41 observations,    complexity param=0.0001631107
##   mean=0.3658537, MSE=0.2320048 
##   left son=1492 (13 obs) right son=1493 (28 obs)
##   Primary splits:
##       mo_launched        splits as  LRRLRRLLLRRR, improve=0.167061100, (0 missing)
##       reward_length      < 9124     to the right, improve=0.060615770, (0 missing)
##       campaign_duration  < 30.02    to the left,  improve=0.037025640, (0 missing)
##       description_length < 1666.5   to the right, improve=0.014024860, (0 missing)
##       goal               < 10032.5  to the right, improve=0.007852564, (0 missing)
##   Surrogate splits:
##       description_length < 1009.5   to the left,  agree=0.756, adj=0.231, (0 split)
##       goal               < 10832.5  to the right, agree=0.707, adj=0.077, (0 split)
## 
## Node number 747: 18 observations
##   mean=0.7222222, MSE=0.2006173 
## 
## Node number 748: 426 observations,    complexity param=0.000241128
##   mean=0.4366197, MSE=0.2459829 
##   left son=1496 (410 obs) right son=1497 (16 obs)
##   Primary splits:
##       category           splits as  -R--R-LR--L----, improve=0.02241456, (0 missing)
##       mo_launched        splits as  RLRLLRLLLLRL, improve=0.01765322, (0 missing)
##       reward_length      < 5975     to the left,  improve=0.01611567, (0 missing)
##       campaign_duration  < 40.185   to the right, improve=0.01158712, (0 missing)
##       description_length < 1150     to the left,  improve=0.00957368, (0 missing)
## 
## Node number 749: 887 observations,    complexity param=0.0003314053
##   mean=0.5704622, MSE=0.2450351 
##   left son=1498 (249 obs) right son=1499 (638 obs)
##   Primary splits:
##       description_length < 989.5    to the left,  improve=0.014852680, (0 missing)
##       category           splits as  -RR-RRLR--L---R, improve=0.009541689, (0 missing)
##       reward_length      < 5480     to the left,  improve=0.009505857, (0 missing)
##       mo_launched        splits as  LRRLRLLLRLRL, improve=0.008564195, (0 missing)
##       campaign_duration  < 42.015   to the right, improve=0.008365080, (0 missing)
##   Surrogate splits:
##       reward_length < 9557     to the right, agree=0.723, adj=0.012, (0 split)
## 
## Node number 750: 203 observations,    complexity param=0.0002004007
##   mean=0.5862069, MSE=0.2425684 
##   left son=1500 (33 obs) right son=1501 (170 obs)
##   Primary splits:
##       mo_launched        splits as  RLRLRRRRRRRR, improve=0.03964297, (0 missing)
##       campaign_duration  < 32.06    to the right, improve=0.02900449, (0 missing)
##       goal               < 5550     to the right, improve=0.02542753, (0 missing)
##       reward_length      < 14768.5  to the left,  improve=0.01597974, (0 missing)
##       description_length < 183.5    to the right, improve=0.01215486, (0 missing)
## 
## Node number 751: 383 observations,    complexity param=0.0001866282
##   mean=0.7258486, MSE=0.1989924 
##   left son=1502 (55 obs) right son=1503 (328 obs)
##   Primary splits:
##       goal               < 12425    to the right, improve=0.022172740, (0 missing)
##       reward_length      < 11052    to the right, improve=0.021607030, (0 missing)
##       mo_launched        splits as  RRRLRRLLRRRR, improve=0.016103550, (0 missing)
##       description_length < 1817     to the right, improve=0.013261950, (0 missing)
##       category           splits as  --R-LRL---R---R, improve=0.007633181, (0 missing)
##   Surrogate splits:
##       usa < 0.5      to the left,  agree=0.859, adj=0.018, (0 split)
## 
## Node number 752: 1066 observations,    complexity param=0.0007706202
##   mean=0.4530957, MSE=0.2478 
##   left son=1504 (291 obs) right son=1505 (775 obs)
##   Primary splits:
##       goal               < 25381    to the right, improve=0.028417060, (0 missing)
##       category           splits as  ------R---L----, improve=0.018097860, (0 missing)
##       description_length < 2934.5   to the left,  improve=0.009021152, (0 missing)
##       campaign_duration  < 54.48    to the right, improve=0.008454736, (0 missing)
##       reward_length      < 8832     to the left,  improve=0.007622473, (0 missing)
##   Surrogate splits:
##       description_length < 5334     to the right, agree=0.728, adj=0.003, (0 split)
##       reward_length      < 16079    to the right, agree=0.728, adj=0.003, (0 split)
## 
## Node number 753: 223 observations,    complexity param=0.0002251488
##   mean=0.7040359, MSE=0.2083694 
##   left son=1506 (108 obs) right son=1507 (115 obs)
##   Primary splits:
##       mo_launched        splits as  RRRRLRLLRLRL, improve=0.04706066, (0 missing)
##       goal               < 43500    to the right, improve=0.04455070, (0 missing)
##       description_length < 5164.5   to the right, improve=0.03031208, (0 missing)
##       reward_length      < 33167.5  to the left,  improve=0.02410950, (0 missing)
##       campaign_duration  < 31.015   to the right, improve=0.01804207, (0 missing)
##   Surrogate splits:
##       description_length < 2639     to the left,  agree=0.565, adj=0.102, (0 split)
##       campaign_duration  < 30.005   to the right, agree=0.561, adj=0.093, (0 split)
##       category           splits as  ------L---R----, agree=0.547, adj=0.065, (0 split)
##       social_media_count splits as  RLRR, agree=0.543, adj=0.056, (0 split)
##       goal               < 35280    to the right, agree=0.538, adj=0.046, (0 split)
## 
## Node number 754: 108 observations,    complexity param=0.0003309583
##   mean=0.537037, MSE=0.2486283 
##   left son=1508 (88 obs) right son=1509 (20 obs)
##   Primary splits:
##       reward_length      < 27737.5  to the left,  improve=0.12042630, (0 missing)
##       campaign_duration  < 39.475   to the right, improve=0.08296604, (0 missing)
##       social_media_count splits as  LLRR,         improve=0.03371921, (0 missing)
##       goal               < 20500    to the right, improve=0.03120182, (0 missing)
##       description_length < 5747     to the right, improve=0.02758621, (0 missing)
##   Surrogate splits:
##       description_length < 11903.5  to the left,  agree=0.843, adj=0.15, (0 split)
## 
## Node number 755: 577 observations,    complexity param=0.0003309583
##   mean=0.7244367, MSE=0.1996281 
##   left son=1510 (45 obs) right son=1511 (532 obs)
##   Primary splits:
##       reward_length      < 7401     to the left,  improve=0.028154260, (0 missing)
##       social_media_count splits as  RRLR,         improve=0.014945370, (0 missing)
##       mo_launched        splits as  RLRRLLLLLRRR, improve=0.009619015, (0 missing)
##       goal               < 25465    to the right, improve=0.009602634, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.008544636, (0 missing)
## 
## Node number 756: 742 observations,    complexity param=0.0001480169
##   mean=0.6266846, MSE=0.233951 
##   left son=1512 (8 obs) right son=1513 (734 obs)
##   Primary splits:
##       description_length < 4226     to the right, improve=0.006610356, (0 missing)
##       reward_length      < 5150     to the right, improve=0.004602471, (0 missing)
##       usa                < 0.5      to the left,  improve=0.004531856, (0 missing)
##       mo_launched        splits as  RRLLLRLRLLLR, improve=0.004434487, (0 missing)
##       campaign_duration  < 57.095   to the right, improve=0.004312724, (0 missing)
## 
## Node number 757: 290 observations,    complexity param=0.0001987616
##   mean=0.762069, MSE=0.1813199 
##   left son=1514 (18 obs) right son=1515 (272 obs)
##   Primary splits:
##       campaign_duration  < 40.02    to the left,  improve=0.03682021, (0 missing)
##       goal               < 9862     to the right, improve=0.02661480, (0 missing)
##       reward_length      < 11254    to the right, improve=0.02048001, (0 missing)
##       mo_launched        splits as  RRLRLLLLRLRL, improve=0.01937381, (0 missing)
##       description_length < 9082.5   to the right, improve=0.01837279, (0 missing)
## 
## Node number 758: 108 observations,    complexity param=0.0002151251
##   mean=0.5925926, MSE=0.2414266 
##   left son=1516 (28 obs) right son=1517 (80 obs)
##   Primary splits:
##       description_length < 2472.5   to the left,  improve=0.08036729, (0 missing)
##       category           splits as  ------R---L----, improve=0.06960227, (0 missing)
##       mo_launched        splits as  RRRRLRRRLRRR, improve=0.04600662, (0 missing)
##       campaign_duration  < 34.09    to the right, improve=0.03480114, (0 missing)
##       reward_length      < 5223     to the right, improve=0.03305785, (0 missing)
##   Surrogate splits:
##       mo_launched splits as  RRRRLRRRRRRR, agree=0.75, adj=0.036, (0 split)
## 
## Node number 759: 2336 observations,    complexity param=0.0002802057
##   mean=0.7517123, MSE=0.1866409 
##   left son=1518 (1760 obs) right son=1519 (576 obs)
##   Primary splits:
##       campaign_duration  < 30.175   to the left,  improve=0.006114567, (0 missing)
##       reward_length      < 7302.5   to the left,  improve=0.004951190, (0 missing)
##       goal               < 9052     to the right, improve=0.004850501, (0 missing)
##       usa                < 0.5      to the left,  improve=0.004744518, (0 missing)
##       social_media_count splits as  RLRL,         improve=0.003377909, (0 missing)
##   Surrogate splits:
##       reward_length < 58372.5  to the left,  agree=0.754, adj=0.003, (0 split)
## 
## Node number 764: 16 observations
##   mean=0.5, MSE=0.25 
## 
## Node number 765: 13 observations
##   mean=0.9230769, MSE=0.07100592 
## 
## Node number 772: 78 observations,    complexity param=0.000188144
##   mean=0.07692308, MSE=0.07100592 
##   left son=1544 (68 obs) right son=1545 (10 obs)
##   Primary splits:
##       campaign_duration  < 20.925   to the right, improve=0.37071080, (0 missing)
##       description_length < 435.5    to the right, improve=0.19007240, (0 missing)
##       goal               < 1510     to the right, improve=0.09234234, (0 missing)
##       reward_length      < 1116     to the right, improve=0.05496454, (0 missing)
##       mo_launched        splits as  RR-LR-L--RRL, improve=0.03273810, (0 missing)
##   Surrogate splits:
##       description_length < 1842     to the left,  agree=0.897, adj=0.2, (0 split)
## 
## Node number 773: 334 observations,    complexity param=0.000188144
##   mean=0.2245509, MSE=0.1741278 
##   left son=1546 (223 obs) right son=1547 (111 obs)
##   Primary splits:
##       campaign_duration  < 30.15    to the left,  improve=0.019106580, (0 missing)
##       goal               < 2150     to the right, improve=0.009081253, (0 missing)
##       description_length < 1373     to the right, improve=0.006753388, (0 missing)
##       social_media_count splits as  RRLL,         improve=0.006198859, (0 missing)
##       reward_length      < 1476.5   to the right, improve=0.005117171, (0 missing)
##   Surrogate splits:
##       reward_length      < 4020.5   to the left,  agree=0.674, adj=0.018, (0 split)
##       description_length < 60       to the right, agree=0.671, adj=0.009, (0 split)
## 
## Node number 774: 190 observations,    complexity param=0.0001665416
##   mean=0.2842105, MSE=0.2034349 
##   left son=1548 (70 obs) right son=1549 (120 obs)
##   Primary splits:
##       goal               < 2400     to the right, improve=0.027818300, (0 missing)
##       description_length < 497      to the left,  improve=0.026341320, (0 missing)
##       reward_length      < 3473.5   to the right, improve=0.019939830, (0 missing)
##       campaign_duration  < 53.61    to the right, improve=0.013244080, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.008283956, (0 missing)
##   Surrogate splits:
##       description_length < 334.5    to the left,  agree=0.674, adj=0.114, (0 split)
##       reward_length      < 646.5    to the left,  agree=0.647, adj=0.043, (0 split)
##       usa                < 0.5      to the left,  agree=0.642, adj=0.029, (0 split)
## 
## Node number 775: 26 observations,    complexity param=0.0001665416
##   mean=0.5384615, MSE=0.2485207 
##   left son=1550 (17 obs) right son=1551 (9 obs)
##   Primary splits:
##       campaign_duration  < 30.47    to the left,  improve=0.26159350, (0 missing)
##       reward_length      < 3970.5   to the right, improve=0.09470104, (0 missing)
##       description_length < 1114     to the left,  improve=0.09470104, (0 missing)
##       goal               < 2600     to the left,  improve=0.04582886, (0 missing)
##       mo_launched        splits as  --R--R-LL---, improve=0.01790190, (0 missing)
##   Surrogate splits:
##       goal               < 2850     to the left,  agree=0.808, adj=0.444, (0 split)
##       reward_length      < 3823     to the right, agree=0.769, adj=0.333, (0 split)
##       description_length < 1208.5   to the left,  agree=0.692, adj=0.111, (0 split)
## 
## Node number 776: 119 observations
##   mean=0.210084, MSE=0.1659487 
## 
## Node number 777: 96 observations,    complexity param=0.0001454195
##   mean=0.3541667, MSE=0.2287326 
##   left son=1554 (23 obs) right son=1555 (73 obs)
##   Primary splits:
##       social_media_count splits as  RLL-,         improve=0.06894973, (0 missing)
##       campaign_duration  < 31.375   to the right, improve=0.06099214, (0 missing)
##       description_length < 6646     to the right, improve=0.04985337, (0 missing)
##       goal               < 2225     to the right, improve=0.04648956, (0 missing)
##       mo_launched        splits as  LRLLLLLRLLRR, improve=0.03249571, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  RRRRRLRRRRRR, agree=0.792, adj=0.130, (0 split)
##       goal               < 1775     to the left,  agree=0.781, adj=0.087, (0 split)
##       description_length < 1963.5   to the left,  agree=0.771, adj=0.043, (0 split)
## 
## Node number 778: 23 observations,    complexity param=0.0001294812
##   mean=0.2173913, MSE=0.1701323 
##   left son=1556 (16 obs) right son=1557 (7 obs)
##   Primary splits:
##       category           splits as  --------L---LR-, improve=0.32232140, (0 missing)
##       mo_launched        splits as  --L-R----RLR, improve=0.11523570, (0 missing)
##       goal               < 2600     to the left,  improve=0.11468250, (0 missing)
##       reward_length      < 3357.5   to the left,  improve=0.08619529, (0 missing)
##       description_length < 2368.5   to the right, improve=0.07787037, (0 missing)
##   Surrogate splits:
##       mo_launched splits as  --L-L----LLR, agree=0.739, adj=0.143, (0 split)
##       goal        < 1900     to the right, agree=0.739, adj=0.143, (0 split)
## 
## Node number 779: 28 observations,    complexity param=0.0001187927
##   mean=0.6785714, MSE=0.2181122 
##   left son=1558 (20 obs) right son=1559 (8 obs)
##   Primary splits:
##       reward_length < 3858.5   to the left,  improve=0.18947370, (0 missing)
##       category      splits as  --------R---LR-, improve=0.11159090, (0 missing)
##       video_status  < 0.5      to the left,  improve=0.09551657, (0 missing)
##       mo_launched   splits as  RL-R-LRRL---, improve=0.07800270, (0 missing)
##       goal          < 3150     to the right, improve=0.05847953, (0 missing)
##   Surrogate splits:
##       mo_launched splits as  LL-L-LRLL---, agree=0.75, adj=0.125, (0 split)
## 
## Node number 782: 73 observations,    complexity param=0.0002021294
##   mean=0.4520548, MSE=0.2477013 
##   left son=1564 (27 obs) right son=1565 (46 obs)
##   Primary splits:
##       mo_launched       splits as  RLRRLLRRRRLL, improve=0.12517020, (0 missing)
##       campaign_duration < 22.515   to the right, improve=0.05425331, (0 missing)
##       video_status      < 0.5      to the left,  improve=0.04654317, (0 missing)
##       goal              < 1285.5   to the left,  improve=0.03579606, (0 missing)
##       reward_length     < 3667.5   to the left,  improve=0.03248760, (0 missing)
##   Surrogate splits:
##       reward_length     < 3379.5   to the left,  agree=0.685, adj=0.148, (0 split)
##       goal              < 970      to the left,  agree=0.671, adj=0.111, (0 split)
##       campaign_duration < 40.275   to the right, agree=0.658, adj=0.074, (0 split)
##       usa               < 0.5      to the left,  agree=0.658, adj=0.074, (0 split)
## 
## Node number 783: 46 observations,    complexity param=0.0001713982
##   mean=0.6956522, MSE=0.2117202 
##   left son=1566 (26 obs) right son=1567 (20 obs)
##   Primary splits:
##       mo_launched        splits as  LLRRRLLL-LRR, improve=0.15171700, (0 missing)
##       goal               < 1225     to the right, improve=0.11623090, (0 missing)
##       reward_length      < 2670.5   to the left,  improve=0.07128933, (0 missing)
##       description_length < 3174.5   to the left,  improve=0.05755740, (0 missing)
##       campaign_duration  < 30.115   to the left,  improve=0.02047902, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 30.245   to the left,  agree=0.630, adj=0.15, (0 split)
##       goal               < 1050     to the right, agree=0.630, adj=0.15, (0 split)
##       reward_length      < 2489.5   to the right, agree=0.630, adj=0.15, (0 split)
##       usa                < 0.5      to the right, agree=0.609, adj=0.10, (0 split)
##       description_length < 2351.5   to the right, agree=0.609, adj=0.10, (0 split)
## 
## Node number 784: 125 observations
##   mean=0.072, MSE=0.066816 
## 
## Node number 785: 25 observations,    complexity param=0.0001684683
##   mean=0.4, MSE=0.24 
##   left son=1570 (13 obs) right son=1571 (12 obs)
##   Primary splits:
##       category           splits as  R---R-----L----, improve=0.27350430, (0 missing)
##       description_length < 1206     to the right, improve=0.25000000, (0 missing)
##       mo_launched        splits as  -RRRLRLRR-LL, improve=0.14828430, (0 missing)
##       campaign_duration  < 44       to the left,  improve=0.04761905, (0 missing)
##       reward_length      < 1384.5   to the right, improve=0.04411765, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  -RLLLRLLL-LR, agree=0.72, adj=0.417, (0 split)
##       video_status       < 0.5      to the left,  agree=0.64, adj=0.250, (0 split)
##       goal               < 2800     to the right, agree=0.64, adj=0.250, (0 split)
##       campaign_duration  < 38.885   to the right, agree=0.60, adj=0.167, (0 split)
##       description_length < 1235     to the left,  agree=0.60, adj=0.167, (0 split)
## 
## Node number 786: 58 observations,    complexity param=0.0001907433
##   mean=0.137931, MSE=0.1189061 
##   left son=1572 (49 obs) right son=1573 (9 obs)
##   Primary splits:
##       mo_launched        splits as  RLLLLLLRLLLL, improve=0.26941040, (0 missing)
##       reward_length      < 2763.5   to the left,  improve=0.09777778, (0 missing)
##       description_length < 260      to the right, improve=0.09000000, (0 missing)
##       social_media_count splits as  RLL-, improve=0.05581395, (0 missing)
##       category           splits as  L---L-----R----, improve=0.02938776, (0 missing)
## 
## Node number 787: 431 observations,    complexity param=0.0001954115
##   mean=0.3573086, MSE=0.2296392 
##   left son=1574 (419 obs) right son=1575 (12 obs)
##   Primary splits:
##       campaign_duration  < 14.295   to the right, improve=0.01923198, (0 missing)
##       mo_launched        splits as  RLLLRRLLLLLL, improve=0.01379477, (0 missing)
##       social_media_count splits as  RRLR,         improve=0.01263544, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.01235755, (0 missing)
##       reward_length      < 2768     to the left,  improve=0.00983447, (0 missing)
## 
## Node number 788: 77 observations,    complexity param=0.0001646986
##   mean=0.2077922, MSE=0.1646146 
##   left son=1576 (54 obs) right son=1577 (23 obs)
##   Primary splits:
##       mo_launched        splits as  LLLLLRLLLRRR, improve=0.13331550, (0 missing)
##       category           splits as  L---R-----R----, improve=0.07431694, (0 missing)
##       goal               < 1225     to the right, improve=0.05304070, (0 missing)
##       reward_length      < 2427.5   to the left,  improve=0.04501620, (0 missing)
##       description_length < 499      to the right, improve=0.03363616, (0 missing)
##   Surrogate splits:
##       goal               < 925      to the right, agree=0.727, adj=0.087, (0 split)
##       reward_length      < 3467     to the left,  agree=0.727, adj=0.087, (0 split)
##       social_media_count splits as  LLRL,         agree=0.714, adj=0.043, (0 split)
## 
## Node number 789: 110 observations,    complexity param=0.0001295921
##   mean=0.3909091, MSE=0.2380992 
##   left son=1578 (56 obs) right son=1579 (54 obs)
##   Primary splits:
##       mo_launched        splits as  RLLLRLRLRRRL, improve=0.04819755, (0 missing)
##       campaign_duration  < 20.695   to the right, improve=0.03910679, (0 missing)
##       reward_length      < 3127.5   to the left,  improve=0.03604323, (0 missing)
##       description_length < 306      to the right, improve=0.01900490, (0 missing)
##       social_media_count splits as  LRLL,         improve=0.01697079, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 29.815   to the right, agree=0.582, adj=0.148, (0 split)
##       reward_length      < 2620.5   to the left,  agree=0.582, adj=0.148, (0 split)
##       goal               < 1050     to the right, agree=0.555, adj=0.093, (0 split)
##       description_length < 81       to the right, agree=0.555, adj=0.093, (0 split)
##       social_media_count splits as  LRLL,         agree=0.527, adj=0.037, (0 split)
## 
## Node number 790: 318 observations,    complexity param=0.0002904717
##   mean=0.4528302, MSE=0.247775 
##   left son=1580 (65 obs) right son=1581 (253 obs)
##   Primary splits:
##       mo_launched        splits as  RRLRRRRRLRLR, improve=0.032085010, (0 missing)
##       reward_length      < 3455     to the left,  improve=0.029695780, (0 missing)
##       campaign_duration  < 49.74    to the right, improve=0.018509060, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.010600910, (0 missing)
##       description_length < 962.5    to the right, improve=0.009672384, (0 missing)
## 
## Node number 791: 58 observations,    complexity param=0.0001811101
##   mean=0.7413793, MSE=0.191736 
##   left son=1582 (35 obs) right son=1583 (23 obs)
##   Primary splits:
##       mo_launched        splits as  RRLRLLLLLRRR, improve=0.15863840, (0 missing)
##       reward_length      < 1154     to the left,  improve=0.07004538, (0 missing)
##       description_length < 1110     to the right, improve=0.05071792, (0 missing)
##       goal               < 1550     to the right, improve=0.04685649, (0 missing)
##       campaign_duration  < 20.835   to the left,  improve=0.03547434, (0 missing)
##   Surrogate splits:
##       goal               < 934      to the right, agree=0.655, adj=0.130, (0 split)
##       campaign_duration  < 21.68    to the left,  agree=0.621, adj=0.043, (0 split)
##       social_media_count splits as  LLRL,         agree=0.621, adj=0.043, (0 split)
##       description_length < 652      to the right, agree=0.621, adj=0.043, (0 split)
##       reward_length      < 1015.5   to the right, agree=0.621, adj=0.043, (0 split)
## 
## Node number 792: 26 observations,    complexity param=0.0001413436
##   mean=0.1923077, MSE=0.1553254 
##   left son=1584 (19 obs) right son=1585 (7 obs)
##   Primary splits:
##       mo_launched        splits as  LRLLRLL-LR-L, improve=0.34092370, (0 missing)
##       reward_length      < 1794.5   to the right, improve=0.09550265, (0 missing)
##       campaign_duration  < 31.135   to the right, improve=0.04854257, (0 missing)
##       description_length < 2016     to the right, improve=0.03428571, (0 missing)
##       goal               < 3700     to the right, improve=0.02247121, (0 missing)
##   Surrogate splits:
##       campaign_duration < 59.99    to the left,  agree=0.808, adj=0.286, (0 split)
## 
## Node number 793: 271 observations,    complexity param=0.0001819475
##   mean=0.4538745, MSE=0.2478724 
##   left son=1586 (92 obs) right son=1587 (179 obs)
##   Primary splits:
##       mo_launched        splits as  RLRRRRRLRLLL, improve=0.028344540, (0 missing)
##       campaign_duration  < 25.695   to the right, improve=0.019267720, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.015952340, (0 missing)
##       description_length < 1720.5   to the left,  improve=0.012378600, (0 missing)
##       usa                < 0.5      to the left,  improve=0.007769252, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 9.94     to the left,  agree=0.675, adj=0.043, (0 split)
##       social_media_count splits as  RRRL,         agree=0.668, adj=0.022, (0 split)
##       goal               < 975      to the left,  agree=0.668, adj=0.022, (0 split)
##       description_length < 2745.5   to the right, agree=0.668, adj=0.022, (0 split)
## 
## Node number 794: 23 observations,    complexity param=0.0001657462
##   mean=0.4347826, MSE=0.2457467 
##   left son=1588 (16 obs) right son=1589 (7 obs)
##   Primary splits:
##       mo_launched        splits as  --RLL-RLLRLL, improve=0.31758240, (0 missing)
##       reward_length      < 2105.5   to the left,  improve=0.07852564, (0 missing)
##       campaign_duration  < 34.47    to the right, improve=0.07410256, (0 missing)
##       goal               < 2100     to the right, improve=0.07410256, (0 missing)
##       description_length < 4998     to the left,  improve=0.05686391, (0 missing)
##   Surrogate splits:
##       goal < 3400     to the left,  agree=0.783, adj=0.286, (0 split)
## 
## Node number 795: 30 observations,    complexity param=0.0001467188
##   mean=0.7666667, MSE=0.1788889 
##   left son=1590 (16 obs) right son=1591 (14 obs)
##   Primary splits:
##       mo_launched        splits as  RRLRLRLRLLRR, improve=0.26630430, (0 missing)
##       goal               < 1150     to the left,  improve=0.19875780, (0 missing)
##       campaign_duration  < 43.53    to the right, improve=0.06485089, (0 missing)
##       reward_length      < 1711.5   to the left,  improve=0.04079616, (0 missing)
##       description_length < 3377.5   to the left,  improve=0.03726708, (0 missing)
##   Surrogate splits:
##       category           splits as  L---L-----R----, agree=0.667, adj=0.286, (0 split)
##       goal               < 2412.5   to the right, agree=0.633, adj=0.214, (0 split)
##       reward_length      < 2178     to the left,  agree=0.633, adj=0.214, (0 split)
##       usa                < 0.5      to the right, agree=0.600, adj=0.143, (0 split)
##       description_length < 3089     to the right, agree=0.600, adj=0.143, (0 split)
## 
## Node number 796: 56 observations,    complexity param=0.0001074379
##   mean=0.3214286, MSE=0.2181122 
##   left son=1592 (11 obs) right son=1593 (45 obs)
##   Primary splits:
##       campaign_duration  < 75.225   to the right, improve=0.05955461, (0 missing)
##       description_length < 2832.5   to the right, improve=0.05955461, (0 missing)
##       reward_length      < 3382.5   to the right, improve=0.04105895, (0 missing)
##       mo_launched        splits as  L-RL--L-RRR-, improve=0.03458691, (0 missing)
##       social_media_count splits as  LRLL,         improve=0.02436647, (0 missing)
##   Surrogate splits:
##       description_length < 3313     to the right, agree=0.839, adj=0.182, (0 split)
## 
## Node number 797: 44 observations,    complexity param=0.0001027493
##   mean=0.6363636, MSE=0.231405 
##   left son=1594 (30 obs) right son=1595 (14 obs)
##   Primary splits:
##       description_length < 2272     to the left,  improve=0.09829932, (0 missing)
##       campaign_duration  < 70.935   to the right, improve=0.07821801, (0 missing)
##       category           splits as  L---R-----R----, improve=0.06560020, (0 missing)
##       goal               < 1550     to the right, improve=0.05985222, (0 missing)
##       social_media_count splits as  RLRR, improve=0.02363445, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 59.085   to the right, agree=0.705, adj=0.071, (0 split)
##       social_media_count splits as  LLLR,         agree=0.705, adj=0.071, (0 split)
## 
## Node number 798: 281 observations,    complexity param=0.000197378
##   mean=0.5587189, MSE=0.2465521 
##   left son=1596 (177 obs) right son=1597 (104 obs)
##   Primary splits:
##       reward_length      < 3633     to the left,  improve=0.02614561, (0 missing)
##       goal               < 1650     to the right, improve=0.02023009, (0 missing)
##       description_length < 2617.5   to the left,  improve=0.01625354, (0 missing)
##       social_media_count splits as  LLRL,         improve=0.01331520, (0 missing)
##       campaign_duration  < 21.485   to the right, improve=0.01282978, (0 missing)
##   Surrogate splits:
##       goal               < 976.5    to the right, agree=0.648, adj=0.048, (0 split)
##       description_length < 2786.5   to the left,  agree=0.644, adj=0.038, (0 split)
##       usa                < 0.5      to the right, agree=0.637, adj=0.019, (0 split)
##       category           splits as  L---R-----L----, agree=0.633, adj=0.010, (0 split)
## 
## Node number 799: 327 observations,    complexity param=0.0001336597
##   mean=0.7003058, MSE=0.2098776 
##   left son=1598 (314 obs) right son=1599 (13 obs)
##   Primary splits:
##       reward_length      < 2664.5   to the right, improve=0.017717580, (0 missing)
##       description_length < 2112.5   to the left,  improve=0.014627610, (0 missing)
##       usa                < 0.5      to the left,  improve=0.014602830, (0 missing)
##       campaign_duration  < 29.97    to the right, improve=0.013892300, (0 missing)
##       goal               < 1837.5   to the right, improve=0.006609256, (0 missing)
## 
## Node number 800: 37 observations
##   mean=0.1351351, MSE=0.1168736 
## 
## Node number 801: 23 observations
##   mean=0.4782609, MSE=0.2495274 
## 
## Node number 802: 50 observations,    complexity param=0.0002224472
##   mean=0.3, MSE=0.21 
##   left son=1604 (21 obs) right son=1605 (29 obs)
##   Primary splits:
##       mo_launched        splits as  RLR-RRRRLLLR, improve=0.21964190, (0 missing)
##       goal               < 225      to the left,  improve=0.06976744, (0 missing)
##       campaign_duration  < 33.21    to the right, improve=0.05893767, (0 missing)
##       reward_length      < 1894.5   to the right, improve=0.05668934, (0 missing)
##       description_length < 1095     to the left,  improve=0.03729513, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 29.975   to the left,  agree=0.66, adj=0.190, (0 split)
##       description_length < 1038     to the left,  agree=0.62, adj=0.095, (0 split)
##       reward_length      < 1042.5   to the left,  agree=0.62, adj=0.095, (0 split)
##       category           splits as  R---R---R-L-RR-, agree=0.60, adj=0.048, (0 split)
## 
## Node number 803: 190 observations,    complexity param=0.0001928421
##   mean=0.5263158, MSE=0.2493075 
##   left son=1606 (167 obs) right son=1607 (23 obs)
##   Primary splits:
##       goal              < 142.75   to the right, improve=0.03628685, (0 missing)
##       mo_launched       splits as  RRRRLLLLLRRL, improve=0.03121111, (0 missing)
##       reward_length     < 1599.5   to the right, improve=0.03036837, (0 missing)
##       campaign_duration < 27.385   to the left,  improve=0.02256050, (0 missing)
##       category          splits as  L---L---L-R-RR-, improve=0.02251876, (0 missing)
## 
## Node number 806: 33 observations,    complexity param=0.000200063
##   mean=0.3636364, MSE=0.231405 
##   left son=1612 (18 obs) right son=1613 (15 obs)
##   Primary splits:
##       mo_launched        splits as  LLRLLR-LRLRL, improve=0.33068780, (0 missing)
##       category           splits as  L---R-----R-LL-, improve=0.15520950, (0 missing)
##       description_length < 511      to the right, improve=0.09446429, (0 missing)
##       social_media_count splits as  LRR-, improve=0.07142857, (0 missing)
##       reward_length      < 3944     to the left,  improve=0.05671115, (0 missing)
##   Surrogate splits:
##       social_media_count splits as  LRR-, agree=0.697, adj=0.333, (0 split)
##       category           splits as  L---R-----R-LL-, agree=0.697, adj=0.333, (0 split)
##       description_length < 936.5    to the left,  agree=0.636, adj=0.200, (0 split)
##       campaign_duration  < 29.6     to the right, agree=0.606, adj=0.133, (0 split)
##       video_status       < 0.5      to the left,  agree=0.606, adj=0.133, (0 split)
## 
## Node number 807: 340 observations,    complexity param=0.0001369433
##   mean=0.5882353, MSE=0.2422145 
##   left son=1614 (160 obs) right son=1615 (180 obs)
##   Primary splits:
##       video_status       < 0.5      to the left,  improve=0.014674600, (0 missing)
##       social_media_count splits as  LRRR,         improve=0.013096010, (0 missing)
##       description_length < 531.5    to the left,  improve=0.012890800, (0 missing)
##       campaign_duration  < 60.035   to the left,  improve=0.012160170, (0 missing)
##       reward_length      < 3743.5   to the left,  improve=0.008205244, (0 missing)
##   Surrogate splits:
##       category          splits as  L---L---R-R-LR-, agree=0.612, adj=0.175, (0 split)
##       mo_launched       splits as  RRLLRRLRLRRR, agree=0.559, adj=0.063, (0 split)
##       campaign_duration < 41.305   to the right, agree=0.553, adj=0.050, (0 split)
##       goal              < 155      to the left,  agree=0.553, adj=0.050, (0 split)
##       usa               < 0.5      to the left,  agree=0.541, adj=0.025, (0 split)
## 
## Node number 810: 83 observations,    complexity param=0.0001925583
##   mean=0.4578313, MSE=0.2482218 
##   left son=1620 (74 obs) right son=1621 (9 obs)
##   Primary splits:
##       description_length < 4347.5   to the left,  improve=0.09104192, (0 missing)
##       mo_launched        splits as  RLLLRLLLLLLL, improve=0.06129242, (0 missing)
##       goal               < 425      to the left,  improve=0.03815941, (0 missing)
##       reward_length      < 3035.5   to the left,  improve=0.03681243, (0 missing)
##       campaign_duration  < 47.02    to the right, improve=0.03668669, (0 missing)
## 
## Node number 811: 70 observations,    complexity param=0.0001715895
##   mean=0.7, MSE=0.21 
##   left son=1622 (57 obs) right son=1623 (13 obs)
##   Primary splits:
##       description_length < 1515.5   to the right, improve=0.09774436, (0 missing)
##       mo_launched        splits as  LLLRRRLLLLLR, improve=0.07608696, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.07342657, (0 missing)
##       reward_length      < 1402     to the left,  improve=0.07142857, (0 missing)
##       usa                < 0.5      to the left,  improve=0.02457757, (0 missing)
##   Surrogate splits:
##       reward_length < 902      to the right, agree=0.829, adj=0.077, (0 split)
## 
## Node number 812: 61 observations,    complexity param=0.0002005101
##   mean=0.5081967, MSE=0.2499328 
##   left son=1624 (24 obs) right son=1625 (37 obs)
##   Primary splits:
##       mo_launched        splits as  LRRRLRLRLRLR, improve=0.17301660, (0 missing)
##       category           splits as  R---R---L-L----, improve=0.14244540, (0 missing)
##       reward_length      < 1929     to the right, improve=0.12168100, (0 missing)
##       description_length < 2345     to the left,  improve=0.04573626, (0 missing)
##       social_media_count splits as  RLR-, improve=0.03726209, (0 missing)
##   Surrogate splits:
##       video_status       < 0.5      to the right, agree=0.639, adj=0.083, (0 split)
##       description_length < 1649     to the left,  agree=0.639, adj=0.083, (0 split)
##       reward_length      < 1929     to the right, agree=0.639, adj=0.083, (0 split)
##       category           splits as  R---R---L-R----, agree=0.623, adj=0.042, (0 split)
## 
## Node number 813: 166 observations,    complexity param=0.0001688844
##   mean=0.686747, MSE=0.2151256 
##   left son=1626 (79 obs) right son=1627 (87 obs)
##   Primary splits:
##       mo_launched        splits as  LLLRLLRRRRLR, improve=0.04606665, (0 missing)
##       reward_length      < 3062.5   to the right, improve=0.02823839, (0 missing)
##       social_media_count splits as  RRL-,         improve=0.02450085, (0 missing)
##       description_length < 3656     to the left,  improve=0.01954688, (0 missing)
##       goal               < 625      to the right, improve=0.01540090, (0 missing)
##   Surrogate splits:
##       reward_length      < 3527.5   to the right, agree=0.602, adj=0.165, (0 split)
##       description_length < 1766.5   to the left,  agree=0.584, adj=0.127, (0 split)
##       campaign_duration  < 29.98    to the left,  agree=0.536, adj=0.025, (0 split)
##       category           splits as  R---R---R-L----, agree=0.536, adj=0.025, (0 split)
##       goal               < 562.5    to the right, agree=0.536, adj=0.025, (0 split)
## 
## Node number 816: 73 observations,    complexity param=0.0001981542
##   mean=0.4657534, MSE=0.2488272 
##   left son=1632 (41 obs) right son=1633 (32 obs)
##   Primary splits:
##       mo_launched        splits as  R--R-L-RL-LL, improve=0.11382630, (0 missing)
##       goal               < 247      to the left,  improve=0.06459323, (0 missing)
##       campaign_duration  < 13.57    to the left,  improve=0.06080447, (0 missing)
##       description_length < 693.5    to the right, improve=0.05251250, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.04133637, (0 missing)
##   Surrogate splits:
##       goal               < 575      to the left,  agree=0.630, adj=0.156, (0 split)
##       reward_length      < 3363     to the left,  agree=0.616, adj=0.125, (0 split)
##       campaign_duration  < 13.865   to the left,  agree=0.603, adj=0.094, (0 split)
##       social_media_count splits as  LRL-, agree=0.603, adj=0.094, (0 split)
##       category           splits as  L---R---L-L-L--, agree=0.589, adj=0.062, (0 split)
## 
## Node number 817: 180 observations,    complexity param=0.0001820471
##   mean=0.6555556, MSE=0.2258025 
##   left son=1634 (95 obs) right son=1635 (85 obs)
##   Primary splits:
##       campaign_duration  < 14.995   to the right, improve=0.02904868, (0 missing)
##       goal               < 687.5    to the right, improve=0.02715872, (0 missing)
##       usa                < 0.5      to the left,  improve=0.02193062, (0 missing)
##       mo_launched        splits as  L--L-L-LR-RR, improve=0.02138400, (0 missing)
##       description_length < 2970     to the left,  improve=0.01155003, (0 missing)
##   Surrogate splits:
##       goal               < 156.5    to the right, agree=0.589, adj=0.129, (0 split)
##       mo_launched        splits as  L--L-L-LL-RR, agree=0.578, adj=0.106, (0 split)
##       category           splits as  R---L---R-L-LR-, agree=0.561, adj=0.071, (0 split)
##       reward_length      < 3108.5   to the right, agree=0.556, adj=0.059, (0 split)
##       description_length < 1398.5   to the left,  agree=0.544, adj=0.035, (0 split)
## 
## Node number 828: 33 observations
##   mean=0.6060606, MSE=0.2387511 
## 
## Node number 829: 33 observations
##   mean=0.9090909, MSE=0.08264463 
## 
## Node number 836: 13 observations
##   mean=0, MSE=0 
## 
## Node number 837: 8 observations
##   mean=0.625, MSE=0.234375 
## 
## Node number 838: 35 observations,    complexity param=0.0001936838
##   mean=0.4285714, MSE=0.244898 
##   left son=1676 (23 obs) right son=1677 (12 obs)
##   Primary splits:
##       description_length < 1735     to the left,  improve=0.2201087, (0 missing)
##       goal               < 2050     to the right, improve=0.1840959, (0 missing)
##       campaign_duration  < 33.55    to the left,  improve=0.1600000, (0 missing)
##       reward_length      < 2215.5   to the left,  improve=0.1250000, (0 missing)
##       mo_launched        splits as  -LR-R--L--R-, improve=0.0270000, (0 missing)
##   Surrogate splits:
##       goal          < 1900     to the right, agree=0.743, adj=0.250, (0 split)
##       reward_length < 2425     to the left,  agree=0.714, adj=0.167, (0 split)
##       mo_launched   splits as  -LL-L--R--L-, agree=0.686, adj=0.083, (0 split)
## 
## Node number 839: 60 observations
##   mean=0.7333333, MSE=0.1955556 
## 
## Node number 840: 19 observations
##   mean=0.2631579, MSE=0.1939058 
## 
## Node number 841: 44 observations,    complexity param=0.0001269255
##   mean=0.5909091, MSE=0.2417355 
##   left son=1682 (34 obs) right son=1683 (10 obs)
##   Primary splits:
##       mo_launched        splits as  RRRLLLLLLLRL, improve=0.11623930, (0 missing)
##       goal               < 2850     to the left,  improve=0.08725071, (0 missing)
##       reward_length      < 3245.5   to the right, improve=0.05547306, (0 missing)
##       description_length < 1073     to the left,  improve=0.03926282, (0 missing)
##       campaign_duration  < 30.02    to the right, improve=0.02281916, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 29.98    to the right, agree=0.864, adj=0.4, (0 split)
##       description_length < 457.5    to the right, agree=0.818, adj=0.2, (0 split)
## 
## Node number 842: 24 observations,    complexity param=0.0001294038
##   mean=0.5, MSE=0.25 
##   left son=1684 (7 obs) right son=1685 (17 obs)
##   Primary splits:
##       description_length < 1000.5   to the right, improve=0.210084000, (0 missing)
##       mo_launched        splits as  LRLR-LLL-RLR, improve=0.185185200, (0 missing)
##       campaign_duration  < 60.02    to the left,  improve=0.114285700, (0 missing)
##       reward_length      < 3411.5   to the right, improve=0.031250000, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.007407407, (0 missing)
##   Surrogate splits:
##       campaign_duration < 58.11    to the left,  agree=0.792, adj=0.286, (0 split)
##       mo_launched       splits as  RRRR-RRL-RRR, agree=0.750, adj=0.143, (0 split)
## 
## Node number 843: 45 observations,    complexity param=0.0001183232
##   mean=0.8, MSE=0.16 
##   left son=1686 (22 obs) right son=1687 (23 obs)
##   Primary splits:
##       mo_launched        splits as  RRRLLLLRRLLR, improve=0.16007910, (0 missing)
##       goal               < 2100     to the right, improve=0.11250000, (0 missing)
##       social_media_count splits as  LR--,         improve=0.08088235, (0 missing)
##       reward_length      < 3254.5   to the left,  improve=0.07407407, (0 missing)
##       description_length < 630      to the right, improve=0.04665899, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 41.085   to the left,  agree=0.644, adj=0.273, (0 split)
##       goal               < 2100     to the right, agree=0.644, adj=0.273, (0 split)
##       social_media_count splits as  LR--,         agree=0.600, adj=0.182, (0 split)
##       reward_length      < 3199.5   to the left,  agree=0.600, adj=0.182, (0 split)
##       description_length < 177      to the left,  agree=0.556, adj=0.091, (0 split)
## 
## Node number 844: 24 observations
##   mean=0.375, MSE=0.234375 
## 
## Node number 845: 19 observations
##   mean=0.7894737, MSE=0.166205 
## 
## Node number 846: 73 observations,    complexity param=0.000124172
##   mean=0.7123288, MSE=0.2049165 
##   left son=1692 (30 obs) right son=1693 (43 obs)
##   Primary splits:
##       mo_launched       splits as  LRLLLRRRRRRL, improve=0.07223855, (0 missing)
##       reward_length     < 3736.5   to the left,  improve=0.07223855, (0 missing)
##       campaign_duration < 60.555   to the right, improve=0.06834496, (0 missing)
##       video_status      < 0.5      to the left,  improve=0.06834496, (0 missing)
##       goal              < 2875     to the right, improve=0.03103514, (0 missing)
##   Surrogate splits:
##       reward_length      < 3606     to the left,  agree=0.658, adj=0.167, (0 split)
##       campaign_duration  < 69.19    to the right, agree=0.630, adj=0.100, (0 split)
##       social_media_count splits as  R-L-,         agree=0.616, adj=0.067, (0 split)
##       description_length < 1298     to the left,  agree=0.616, adj=0.067, (0 split)
## 
## Node number 847: 89 observations
##   mean=0.8651685, MSE=0.1166519 
## 
## Node number 856: 9 observations
##   mean=0.3333333, MSE=0.2222222 
## 
## Node number 857: 33 observations
##   mean=0.7272727, MSE=0.1983471 
## 
## Node number 858: 57 observations,    complexity param=0.0001075457
##   mean=0.6842105, MSE=0.2160665 
##   left son=1716 (13 obs) right son=1717 (44 obs)
##   Primary splits:
##       mo_launched        splits as  R--RL-L-RRR-, improve=0.12273620, (0 missing)
##       reward_length      < 2623.5   to the right, improve=0.07802134, (0 missing)
##       description_length < 2304     to the left,  improve=0.07248521, (0 missing)
##       social_media_count splits as  RLRL,         improve=0.05837641, (0 missing)
##       goal               < 450      to the right, improve=0.03635446, (0 missing)
## 
## Node number 859: 126 observations,    complexity param=0.0001075457
##   mean=0.8333333, MSE=0.1388889 
##   left son=1718 (47 obs) right son=1719 (79 obs)
##   Primary splits:
##       reward_length      < 2482.5   to the left,  improve=0.033665500, (0 missing)
##       description_length < 1748.5   to the left,  improve=0.021052630, (0 missing)
##       goal               < 937.5    to the left,  improve=0.013913040, (0 missing)
##       campaign_duration  < 47.285   to the right, improve=0.007747036, (0 missing)
##       mo_launched        splits as  R--LL-R-LLL-, improve=0.007598116, (0 missing)
##   Surrogate splits:
##       goal               < 325      to the left,  agree=0.690, adj=0.170, (0 split)
##       description_length < 787.5    to the left,  agree=0.659, adj=0.085, (0 split)
##       campaign_duration  < 47.285   to the right, agree=0.651, adj=0.064, (0 split)
##       video_status       < 0.5      to the left,  agree=0.651, adj=0.064, (0 split)
##       mo_launched        splits as  R--RR-L-RRR-, agree=0.651, adj=0.064, (0 split)
## 
## Node number 896: 92 observations,    complexity param=0.0001534611
##   mean=0.1304348, MSE=0.1134216 
##   left son=1792 (74 obs) right son=1793 (18 obs)
##   Primary splits:
##       description_length < 735.5    to the right, improve=0.14325580, (0 missing)
##       goal               < 3900     to the right, improve=0.02468354, (0 missing)
##       category           splits as  R-------L---L--, improve=0.02322255, (0 missing)
##       campaign_duration  < 21.985   to the left,  improve=0.02250000, (0 missing)
##       reward_length      < 4287     to the left,  improve=0.01829268, (0 missing)
##   Surrogate splits:
##       campaign_duration < 14.52    to the right, agree=0.826, adj=0.111, (0 split)
## 
## Node number 897: 81 observations,    complexity param=0.000171653
##   mean=0.3580247, MSE=0.229843 
##   left son=1794 (33 obs) right son=1795 (48 obs)
##   Primary splits:
##       reward_length      < 4883     to the left,  improve=0.06367555, (0 missing)
##       campaign_duration  < 56.855   to the left,  improve=0.05223621, (0 missing)
##       mo_launched        splits as  -L--LLR----L, improve=0.03394640, (0 missing)
##       goal               < 3785     to the left,  improve=0.02122016, (0 missing)
##       description_length < 1238     to the right, improve=0.02025601, (0 missing)
##   Surrogate splits:
##       description_length < 717      to the left,  agree=0.654, adj=0.152, (0 split)
##       campaign_duration  < 35.77    to the right, agree=0.642, adj=0.121, (0 split)
## 
## Node number 898: 15 observations
##   mean=0.2, MSE=0.16 
## 
## Node number 899: 10 observations
##   mean=1, MSE=0 
## 
## Node number 902: 38 observations
##   mean=0.3421053, MSE=0.2250693 
## 
## Node number 903: 47 observations,    complexity param=0.0001034897
##   mean=0.5957447, MSE=0.240833 
##   left son=1806 (39 obs) right son=1807 (8 obs)
##   Primary splits:
##       campaign_duration  < 24.93    to the right, improve=0.06642206, (0 missing)
##       social_media_count splits as  LRR-, improve=0.06642206, (0 missing)
##       reward_length      < 7113.5   to the left,  improve=0.04965091, (0 missing)
##       description_length < 1627     to the right, improve=0.04923022, (0 missing)
##       category           splits as  R-------L---L--, improve=0.04793577, (0 missing)
##   Surrogate splits:
##       social_media_count splits as  LRL-, agree=0.872, adj=0.25, (0 split)
## 
## Node number 906: 41 observations,    complexity param=0.0001272909
##   mean=0.4390244, MSE=0.246282 
##   left son=1812 (9 obs) right son=1813 (32 obs)
##   Primary splits:
##       description_length < 1897     to the right, improve=0.12279420, (0 missing)
##       reward_length      < 5236.5   to the left,  improve=0.06039239, (0 missing)
##       category           splits as  R-------L---L--, improve=0.03549674, (0 missing)
##       social_media_count splits as  RLL-, improve=0.03517055, (0 missing)
##       mo_launched        splits as  -L-RL---LLR-, improve=0.02083488, (0 missing)
##   Surrogate splits:
##       social_media_count splits as  RRL-, agree=0.829, adj=0.222, (0 split)
##       campaign_duration  < 70.045   to the right, agree=0.805, adj=0.111, (0 split)
##       category           splits as  R-------L---R--, agree=0.805, adj=0.111, (0 split)
##       reward_length      < 4558     to the left,  agree=0.805, adj=0.111, (0 split)
## 
## Node number 907: 8 observations
##   mean=0.875, MSE=0.109375 
## 
## Node number 908: 343 observations,    complexity param=0.0002573489
##   mean=0.4489796, MSE=0.2473969 
##   left son=1816 (16 obs) right son=1817 (327 obs)
##   Primary splits:
##       description_length < 540      to the left,  improve=0.02954140, (0 missing)
##       category           splits as  --------L---R--, improve=0.01969594, (0 missing)
##       reward_length      < 7896.5   to the right, improve=0.01478296, (0 missing)
##       mo_launched        splits as  RRLRLLLRLRRL, improve=0.01277641, (0 missing)
##       usa                < 0.5      to the left,  improve=0.01167940, (0 missing)
## 
## Node number 909: 98 observations,    complexity param=0.0001240003
##   mean=0.6530612, MSE=0.2265723 
##   left son=1818 (66 obs) right son=1819 (32 obs)
##   Primary splits:
##       mo_launched        splits as  LRRLLLRLLRLR, improve=0.05439853, (0 missing)
##       campaign_duration  < 28.145   to the right, improve=0.04870055, (0 missing)
##       goal               < 1350     to the left,  improve=0.04581448, (0 missing)
##       description_length < 1393.5   to the left,  improve=0.02082291, (0 missing)
##       reward_length      < 13019    to the right, improve=0.01442801, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 27.52    to the right, agree=0.704, adj=0.094, (0 split)
##       goal               < 3975     to the left,  agree=0.694, adj=0.063, (0 split)
##       description_length < 269      to the right, agree=0.694, adj=0.063, (0 split)
## 
## Node number 910: 120 observations,    complexity param=0.0002426646
##   mean=0.5166667, MSE=0.2497222 
##   left son=1820 (14 obs) right son=1821 (106 obs)
##   Primary splits:
##       description_length < 786      to the left,  improve=0.1048455000, (0 missing)
##       reward_length      < 5523     to the right, improve=0.0540600700, (0 missing)
##       campaign_duration  < 19.5     to the left,  improve=0.0256802400, (0 missing)
##       goal               < 1343     to the right, improve=0.0221367100, (0 missing)
##       mo_launched        splits as  L------R--RL, improve=0.0007415647, (0 missing)
##   Surrogate splits:
##       reward_length < 12719    to the right, agree=0.892, adj=0.071, (0 split)
## 
## Node number 911: 264 observations,    complexity param=0.0002056639
##   mean=0.655303, MSE=0.225881 
##   left son=1822 (216 obs) right son=1823 (48 obs)
##   Primary splits:
##       campaign_duration  < 36.505   to the left,  improve=0.018293840, (0 missing)
##       description_length < 819      to the right, improve=0.014495700, (0 missing)
##       reward_length      < 10415    to the right, improve=0.007846842, (0 missing)
##       social_media_count splits as  LRLR,         improve=0.004764022, (0 missing)
##       goal               < 3100     to the right, improve=0.004654794, (0 missing)
## 
## Node number 912: 99 observations,    complexity param=0.0001183232
##   mean=0.3636364, MSE=0.231405 
##   left son=1824 (30 obs) right son=1825 (69 obs)
##   Primary splits:
##       mo_launched        splits as  R-R--RRLL-RL, improve=0.05031056, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.03742545, (0 missing)
##       description_length < 1055.5   to the right, improve=0.03295441, (0 missing)
##       goal               < 875      to the left,  improve=0.02701952, (0 missing)
##       reward_length      < 5815     to the right, improve=0.02680166, (0 missing)
##   Surrogate splits:
##       description_length < 1270.5   to the right, agree=0.707, adj=0.033, (0 split)
## 
## Node number 913: 110 observations,    complexity param=0.000129522
##   mean=0.5090909, MSE=0.2499174 
##   left son=1826 (11 obs) right son=1827 (99 obs)
##   Primary splits:
##       description_length < 1945     to the right, improve=0.04761905, (0 missing)
##       mo_launched        splits as  L-L--LLRR-LR, improve=0.03949938, (0 missing)
##       goal               < 525      to the right, improve=0.03725750, (0 missing)
##       campaign_duration  < 38.56    to the left,  improve=0.03554947, (0 missing)
##       category           splits as  R-------L---R--, improve=0.03121663, (0 missing)
## 
## Node number 914: 26 observations,    complexity param=0.0001784131
##   mean=0.5384615, MSE=0.2485207 
##   left son=1828 (8 obs) right son=1829 (18 obs)
##   Primary splits:
##       video_status       < 0.5      to the left,  improve=0.30572090, (0 missing)
##       campaign_duration  < 30.435   to the right, improve=0.21304080, (0 missing)
##       category           splits as  L-------R---R--, improve=0.09470104, (0 missing)
##       description_length < 1402     to the left,  improve=0.06562500, (0 missing)
##       reward_length      < 4661     to the right, improve=0.04582886, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 38.265   to the right, agree=0.808, adj=0.375, (0 split)
##       social_media_count splits as  RL--, agree=0.769, adj=0.250, (0 split)
##       category           splits as  L-------R---R--, agree=0.731, adj=0.125, (0 split)
##       goal               < 110      to the left,  agree=0.731, adj=0.125, (0 split)
## 
## Node number 915: 30 observations
##   mean=0.8666667, MSE=0.1155556 
## 
## Node number 916: 64 observations,    complexity param=0.0002110181
##   mean=0.515625, MSE=0.2497559 
##   left son=1832 (12 obs) right son=1833 (52 obs)
##   Primary splits:
##       reward_length      < 5209     to the left,  improve=0.172669600, (0 missing)
##       goal               < 575      to the right, improve=0.064603770, (0 missing)
##       mo_launched        splits as  -R-LL----R--, improve=0.036620780, (0 missing)
##       description_length < 1488.5   to the right, improve=0.034313360, (0 missing)
##       social_media_count splits as  LRL-,         improve=0.004235907, (0 missing)
## 
## Node number 917: 17 observations
##   mean=0.8823529, MSE=0.1038062 
## 
## Node number 920: 18 observations
##   mean=0.3333333, MSE=0.2222222 
## 
## Node number 921: 35 observations,    complexity param=0.0001363999
##   mean=0.6285714, MSE=0.2334694 
##   left son=1842 (24 obs) right son=1843 (11 obs)
##   Primary splits:
##       description_length < 1020     to the right, improve=0.15448190, (0 missing)
##       mo_launched        splits as  RLLR-------L, improve=0.15448190, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.08951049, (0 missing)
##       reward_length      < 6330.5   to the right, improve=0.08420746, (0 missing)
##       goal               < 325      to the right, improve=0.05034965, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  RRLL-------L, agree=0.771, adj=0.273, (0 split)
##       reward_length      < 5014     to the right, agree=0.771, adj=0.273, (0 split)
##       social_media_count splits as  LLR-,         agree=0.743, adj=0.182, (0 split)
##       goal               < 950      to the left,  agree=0.743, adj=0.182, (0 split)
## 
## Node number 924: 13 observations
##   mean=0.4615385, MSE=0.2485207 
## 
## Node number 925: 28 observations
##   mean=0.8571429, MSE=0.122449 
## 
## Node number 928: 26 observations
##   mean=0.1538462, MSE=0.1301775 
## 
## Node number 929: 152 observations,    complexity param=0.0001585511
##   mean=0.4276316, MSE=0.2447628 
##   left son=1858 (12 obs) right son=1859 (140 obs)
##   Primary splits:
##       description_length < 7319.5   to the right, improve=0.04151236, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.02718620, (0 missing)
##       mo_launched        splits as  RLRRRLLLLRLR, improve=0.02369164, (0 missing)
##       goal               < 3594.5   to the right, improve=0.02317876, (0 missing)
##       reward_length      < 4701.5   to the left,  improve=0.02000926, (0 missing)
## 
## Node number 930: 138 observations,    complexity param=0.0001577726
##   mean=0.4565217, MSE=0.2481096 
##   left son=1860 (7 obs) right son=1861 (131 obs)
##   Primary splits:
##       usa                < 0.5      to the left,  improve=0.04488550, (0 missing)
##       description_length < 2310.5   to the left,  improve=0.03224994, (0 missing)
##       goal               < 1635.5   to the right, improve=0.02819417, (0 missing)
##       reward_length      < 5568     to the right, improve=0.02482597, (0 missing)
##       mo_launched        splits as  -R--R-L-R--R, improve=0.01092888, (0 missing)
## 
## Node number 931: 187 observations,    complexity param=0.000307394
##   mean=0.6470588, MSE=0.2283737 
##   left son=1862 (40 obs) right son=1863 (147 obs)
##   Primary splits:
##       video_status       < 0.5      to the left,  improve=0.07272727, (0 missing)
##       campaign_duration  < 53.165   to the right, improve=0.05452111, (0 missing)
##       description_length < 6265     to the right, improve=0.03758515, (0 missing)
##       social_media_count splits as  RRLL,         improve=0.03085322, (0 missing)
##       reward_length      < 6176.5   to the right, improve=0.01510015, (0 missing)
##   Surrogate splits:
##       reward_length < 6210     to the right, agree=0.797, adj=0.05, (0 split)
## 
## Node number 932: 45 observations,    complexity param=0.0001035966
##   mean=0.3777778, MSE=0.2350617 
##   left son=1864 (24 obs) right son=1865 (21 obs)
##   Primary splits:
##       goal               < 527.5    to the left,  improve=0.07938175, (0 missing)
##       campaign_duration  < 22.5     to the right, improve=0.06002401, (0 missing)
##       reward_length      < 4502.5   to the right, improve=0.03869703, (0 missing)
##       description_length < 2877     to the left,  improve=0.02626050, (0 missing)
##       mo_launched        splits as  R--LR---R--L, improve=0.01000163, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  R--RR---L--L, agree=0.689, adj=0.333, (0 split)
##       description_length < 2992     to the right, agree=0.600, adj=0.143, (0 split)
##       campaign_duration  < 22.5     to the right, agree=0.578, adj=0.095, (0 split)
##       usa                < 0.5      to the right, agree=0.578, adj=0.095, (0 split)
##       video_status       < 0.5      to the left,  agree=0.556, adj=0.048, (0 split)
## 
## Node number 933: 26 observations
##   mean=0.7692308, MSE=0.1775148 
## 
## Node number 934: 12 observations
##   mean=0.5, MSE=0.25 
## 
## Node number 935: 86 observations
##   mean=0.8372093, MSE=0.1362899 
## 
## Node number 936: 35 observations,    complexity param=0.0001107579
##   mean=0.2571429, MSE=0.1910204 
##   left son=1872 (26 obs) right son=1873 (9 obs)
##   Primary splits:
##       mo_launched        splits as  -LL--LLRRLL-, improve=0.16137040, (0 missing)
##       social_media_count splits as  LR--,         improve=0.12927350, (0 missing)
##       goal               < 999.5    to the right, improve=0.12350430, (0 missing)
##       reward_length      < 5715     to the right, improve=0.11982250, (0 missing)
##       campaign_duration  < 31.76    to the left,  improve=0.02721121, (0 missing)
##   Surrogate splits:
##       reward_length < 5910     to the left,  agree=0.771, adj=0.111, (0 split)
## 
## Node number 937: 13 observations
##   mean=0.6923077, MSE=0.2130178 
## 
## Node number 940: 77 observations
##   mean=0.5974026, MSE=0.2405127 
## 
## Node number 941: 28 observations
##   mean=0.8214286, MSE=0.1466837 
## 
## Node number 942: 34 observations,    complexity param=0.0001077795
##   mean=0.6470588, MSE=0.2283737 
##   left son=1884 (25 obs) right son=1885 (9 obs)
##   Primary splits:
##       mo_launched        splits as  L-LRLLL---R-, improve=0.19636360, (0 missing)
##       goal               < 3980     to the left,  improve=0.10653410, (0 missing)
##       reward_length      < 5308     to the left,  improve=0.08086124, (0 missing)
##       description_length < 2935.5   to the left,  improve=0.06060606, (0 missing)
##       campaign_duration  < 37.915   to the right, improve=0.02913753, (0 missing)
##   Surrogate splits:
##       goal          < 4100     to the left,  agree=0.794, adj=0.222, (0 split)
##       reward_length < 6069     to the left,  agree=0.794, adj=0.222, (0 split)
## 
## Node number 943: 153 observations,    complexity param=0.0001060993
##   mean=0.8039216, MSE=0.1576317 
##   left son=1886 (7 obs) right son=1887 (146 obs)
##   Primary splits:
##       campaign_duration  < 59.975   to the right, improve=0.04285237, (0 missing)
##       description_length < 2191.5   to the right, improve=0.02075765, (0 missing)
##       reward_length      < 4752.5   to the right, improve=0.01951220, (0 missing)
##       goal               < 590      to the right, improve=0.01670280, (0 missing)
##       mo_launched        splits as  R-RLLRR---R-, improve=0.01113814, (0 missing)
## 
## Node number 944: 512 observations,    complexity param=0.0002252796
##   mean=0.5800781, MSE=0.2435875 
##   left son=1888 (32 obs) right son=1889 (480 obs)
##   Primary splits:
##       description_length < 4369     to the right, improve=0.019595440, (0 missing)
##       mo_launched        splits as  RRLRLRLRLRLL, improve=0.015049720, (0 missing)
##       reward_length      < 13534    to the left,  improve=0.009950879, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.009573431, (0 missing)
##       campaign_duration  < 24.945   to the left,  improve=0.009406670, (0 missing)
## 
## Node number 945: 195 observations,    complexity param=0.0001607786
##   mean=0.6974359, MSE=0.2110191 
##   left son=1890 (15 obs) right son=1891 (180 obs)
##   Primary splits:
##       goal               < 2499.5   to the left,  improve=0.034936860, (0 missing)
##       reward_length      < 10192.5  to the left,  improve=0.020918060, (0 missing)
##       mo_launched        splits as  RLRLLRRLRRLL, improve=0.018518960, (0 missing)
##       description_length < 4772     to the right, improve=0.011309820, (0 missing)
##       campaign_duration  < 30.475   to the left,  improve=0.009908619, (0 missing)
## 
## Node number 946: 43 observations,    complexity param=0.0001253412
##   mean=0.6744186, MSE=0.2195782 
##   left son=1892 (35 obs) right son=1893 (8 obs)
##   Primary splits:
##       description_length < 5162.5   to the left,  improve=0.11034480, (0 missing)
##       category           splits as  L-------L---R--, improve=0.09860747, (0 missing)
##       reward_length      < 7491     to the left,  improve=0.06375769, (0 missing)
##       social_media_count splits as  LRL-, improve=0.02176444, (0 missing)
##       campaign_duration  < 20.47    to the left,  improve=0.01774031, (0 missing)
## 
## Node number 947: 64 observations
##   mean=0.90625, MSE=0.08496094 
## 
## Node number 948: 62 observations,    complexity param=0.0002038132
##   mean=0.5645161, MSE=0.2458377 
##   left son=1896 (35 obs) right son=1897 (27 obs)
##   Primary splits:
##       mo_launched        splits as  LLLRRLRLRRRL, improve=0.19659140, (0 missing)
##       reward_length      < 8134.5   to the left,  improve=0.07020384, (0 missing)
##       description_length < 2681.5   to the left,  improve=0.05961199, (0 missing)
##       goal               < 1648     to the right, improve=0.05102041, (0 missing)
##       campaign_duration  < 21.43    to the left,  improve=0.03691724, (0 missing)
##   Surrogate splits:
##       goal               < 950      to the right, agree=0.629, adj=0.148, (0 split)
##       reward_length      < 8134.5   to the left,  agree=0.613, adj=0.111, (0 split)
##       campaign_duration  < 30.02    to the left,  agree=0.597, adj=0.074, (0 split)
##       social_media_count splits as  LRL-, agree=0.597, adj=0.074, (0 split)
##       category           splits as  L-------L---R--, agree=0.581, adj=0.037, (0 split)
## 
## Node number 949: 595 observations,    complexity param=0.0001719448
##   mean=0.7344538, MSE=0.1950314 
##   left son=1898 (114 obs) right son=1899 (481 obs)
##   Primary splits:
##       mo_launched       splits as  LRRRRRRRRRLL, improve=0.010761210, (0 missing)
##       campaign_duration < 14.98    to the right, improve=0.007875501, (0 missing)
##       video_status      < 0.5      to the left,  improve=0.007568307, (0 missing)
##       goal              < 1341.5   to the left,  improve=0.007101057, (0 missing)
##       reward_length     < 14218    to the left,  improve=0.005980454, (0 missing)
## 
## Node number 950: 89 observations
##   mean=0.7191011, MSE=0.2019947 
## 
## Node number 951: 157 observations
##   mean=0.8535032, MSE=0.1250355 
## 
## Node number 952: 57 observations,    complexity param=0.0001270303
##   mean=0.5789474, MSE=0.2437673 
##   left son=1904 (17 obs) right son=1905 (40 obs)
##   Primary splits:
##       description_length < 7728.5   to the left,  improve=0.08905414, (0 missing)
##       campaign_duration  < 30.045   to the left,  improve=0.04742838, (0 missing)
##       reward_length      < 8752     to the right, improve=0.04640152, (0 missing)
##       goal               < 675      to the right, improve=0.04444805, (0 missing)
##       usa                < 0.5      to the left,  improve=0.02880892, (0 missing)
## 
## Node number 953: 29 observations,    complexity param=0.000145069
##   mean=0.8275862, MSE=0.1426873 
##   left son=1906 (10 obs) right son=1907 (19 obs)
##   Primary splits:
##       reward_length      < 8024.5   to the right, improve=0.39583330, (0 missing)
##       social_media_count splits as  RLL-,         improve=0.23337960, (0 missing)
##       mo_launched        splits as  --RLLRRR-LR-, improve=0.10957340, (0 missing)
##       goal               < 2625     to the right, improve=0.10420670, (0 missing)
##       campaign_duration  < 28.095   to the left,  improve=0.06628788, (0 missing)
##   Surrogate splits:
##       description_length < 9367.5   to the right, agree=0.759, adj=0.3, (0 split)
##       social_media_count splits as  RRL-,         agree=0.690, adj=0.1, (0 split)
##       mo_launched        splits as  --RLRRRR-RR-, agree=0.690, adj=0.1, (0 split)
## 
## Node number 956: 23 observations,    complexity param=0.0001628898
##   mean=0.5217391, MSE=0.2495274 
##   left son=1912 (12 obs) right son=1913 (11 obs)
##   Primary splits:
##       category           splits as  L-------R---L--, improve=0.32283060, (0 missing)
##       goal               < 2450     to the left,  improve=0.22778930, (0 missing)
##       social_media_count splits as  LRR-, improve=0.06500271, (0 missing)
##       campaign_duration  < 33.275   to the left,  improve=0.05411255, (0 missing)
##       reward_length      < 23170    to the left,  improve=0.02279040, (0 missing)
##   Surrogate splits:
##       goal               < 2450     to the left,  agree=0.783, adj=0.545, (0 split)
##       reward_length      < 20054.5  to the right, agree=0.696, adj=0.364, (0 split)
##       social_media_count splits as  LRL-,         agree=0.609, adj=0.182, (0 split)
##       mo_launched        splits as  -L--------R-, agree=0.609, adj=0.182, (0 split)
##       description_length < 7555.5   to the left,  agree=0.609, adj=0.182, (0 split)
## 
## Node number 957: 25 observations
##   mean=0.92, MSE=0.0736 
## 
## Node number 958: 13 observations
##   mean=0.6153846, MSE=0.2366864 
## 
## Node number 959: 188 observations
##   mean=0.9308511, MSE=0.06436736 
## 
## Node number 962: 10 observations
##   mean=0.1, MSE=0.09 
## 
## Node number 963: 81 observations,    complexity param=0.0001595895
##   mean=0.5802469, MSE=0.2435604 
##   left son=1926 (27 obs) right son=1927 (54 obs)
##   Primary splits:
##       description_length < 1177     to the left,  improve=0.06132666, (0 missing)
##       reward_length      < 4855.5   to the left,  improve=0.03832916, (0 missing)
##       campaign_duration  < 68       to the right, improve=0.03369197, (0 missing)
##       mo_launched        splits as  R--LL--R-RLR, improve=0.02847309, (0 missing)
##       goal               < 2900     to the right, improve=0.01548851, (0 missing)
##   Surrogate splits:
##       mo_launched       splits as  L--RR--R-RRL, agree=0.741, adj=0.222, (0 split)
##       goal              < 3800     to the right, agree=0.728, adj=0.185, (0 split)
##       campaign_duration < 89.775   to the right, agree=0.679, adj=0.037, (0 split)
## 
## Node number 964: 39 observations,    complexity param=0.0001102283
##   mean=0.2820513, MSE=0.2024984 
##   left son=1928 (10 obs) right son=1929 (29 obs)
##   Primary splits:
##       social_media_count splits as  RLRL,         improve=0.13546800, (0 missing)
##       mo_launched        splits as  RLRRRR-RLRLR, improve=0.11785710, (0 missing)
##       campaign_duration  < 59.98    to the left,  improve=0.11082250, (0 missing)
##       description_length < 459.5    to the right, improve=0.06826299, (0 missing)
##       reward_length      < 4474.5   to the left,  improve=0.05643753, (0 missing)
##   Surrogate splits:
##       goal          < 773.5    to the left,  agree=0.821, adj=0.3, (0 split)
##       mo_launched   splits as  LRRRRR-RRRRR, agree=0.795, adj=0.2, (0 split)
##       reward_length < 4333     to the left,  agree=0.769, adj=0.1, (0 split)
## 
## Node number 965: 18 observations
##   mean=0.6666667, MSE=0.2222222 
## 
## Node number 966: 229 observations,    complexity param=0.0001200585
##   mean=0.5720524, MSE=0.2448085 
##   left son=1932 (171 obs) right son=1933 (58 obs)
##   Primary splits:
##       social_media_count splits as  LRLL,         improve=0.019161990, (0 missing)
##       reward_length      < 4519.5   to the right, improve=0.017958900, (0 missing)
##       description_length < 1989.5   to the left,  improve=0.013020760, (0 missing)
##       campaign_duration  < 12.945   to the left,  improve=0.009522865, (0 missing)
##       goal               < 1450     to the left,  improve=0.006449019, (0 missing)
## 
## Node number 967: 113 observations,    complexity param=0.0001533167
##   mean=0.7168142, MSE=0.2029916 
##   left son=1934 (21 obs) right son=1935 (92 obs)
##   Primary splits:
##       campaign_duration  < 56.035   to the right, improve=0.06510736, (0 missing)
##       goal               < 475      to the right, improve=0.03123859, (0 missing)
##       social_media_count splits as  LRLL,         improve=0.02086897, (0 missing)
##       description_length < 863.5    to the left,  improve=0.01887946, (0 missing)
##       reward_length      < 4431.5   to the right, improve=0.01496404, (0 missing)
##   Surrogate splits:
##       reward_length      < 4068     to the left,  agree=0.832, adj=0.095, (0 split)
##       description_length < 626.5    to the left,  agree=0.823, adj=0.048, (0 split)
## 
## Node number 968: 38 observations,    complexity param=0.0001217516
##   mean=0.3421053, MSE=0.2250693 
##   left son=1936 (8 obs) right son=1937 (30 obs)
##   Primary splits:
##       description_length < 554.5    to the left,  improve=0.13866670, (0 missing)
##       campaign_duration  < 30.97    to the right, improve=0.09867701, (0 missing)
##       reward_length      < 7178     to the right, improve=0.09482051, (0 missing)
##       goal               < 2172.5   to the right, improve=0.04234432, (0 missing)
##       social_media_count splits as  RLL-,         improve=0.02863905, (0 missing)
##   Surrogate splits:
##       mo_launched splits as  RR--L--RR-R-, agree=0.816, adj=0.125, (0 split)
## 
## Node number 969: 31 observations,    complexity param=0.0001863424
##   mean=0.6774194, MSE=0.2185224 
##   left son=1938 (9 obs) right son=1939 (22 obs)
##   Primary splits:
##       description_length < 872.5    to the right, improve=0.38790280, (0 missing)
##       campaign_duration  < 30.02    to the left,  improve=0.26190480, (0 missing)
##       reward_length      < 7215.5   to the right, improve=0.08371813, (0 missing)
##       mo_launched        splits as  --RL--L--R-L, improve=0.08371813, (0 missing)
##       goal               < 2750     to the right, improve=0.02780183, (0 missing)
##   Surrogate splits:
##       mo_launched splits as  --RR--R--R-L, agree=0.742, adj=0.111, (0 split)
##       goal        < 2750     to the right, agree=0.742, adj=0.111, (0 split)
## 
## Node number 972: 187 observations,    complexity param=0.0001347957
##   mean=0.631016, MSE=0.2328348 
##   left son=1944 (154 obs) right son=1945 (33 obs)
##   Primary splits:
##       description_length < 3759.5   to the left,  improve=0.022645660, (0 missing)
##       campaign_duration  < 59.98    to the right, improve=0.018857040, (0 missing)
##       goal               < 470      to the right, improve=0.017772080, (0 missing)
##       reward_length      < 8865.5   to the right, improve=0.008992942, (0 missing)
##       mo_launched        splits as  -RLRRRLR-L--, improve=0.008402109, (0 missing)
##   Surrogate splits:
##       category      splits as  ----L-----L--R-, agree=0.850, adj=0.152, (0 split)
##       reward_length < 14737    to the left,  agree=0.829, adj=0.030, (0 split)
## 
## Node number 973: 8 observations
##   mean=1, MSE=0 
## 
## Node number 978: 97 observations,    complexity param=0.0001696005
##   mean=0.5773196, MSE=0.2440217 
##   left son=1956 (57 obs) right son=1957 (40 obs)
##   Primary splits:
##       goal               < 1363.665 to the right, improve=0.04328199, (0 missing)
##       campaign_duration  < 45.585   to the right, improve=0.03401990, (0 missing)
##       description_length < 3287     to the left,  improve=0.03040908, (0 missing)
##       reward_length      < 5197.5   to the right, improve=0.02773236, (0 missing)
##       mo_launched        splits as  --RLLL-RL-LL, improve=0.01500218, (0 missing)
##   Surrogate splits:
##       reward_length      < 4788.5   to the right, agree=0.670, adj=0.200, (0 split)
##       description_length < 968.5    to the right, agree=0.629, adj=0.100, (0 split)
##       campaign_duration  < 32.615   to the right, agree=0.608, adj=0.050, (0 split)
##       social_media_count splits as  LLLR,         agree=0.598, adj=0.025, (0 split)
##       mo_launched        splits as  --LLLL-LL-LR, agree=0.598, adj=0.025, (0 split)
## 
## Node number 979: 25 observations
##   mean=0.84, MSE=0.1344 
## 
## Node number 992: 77 observations,    complexity param=0.0001281255
##   mean=0.3376623, MSE=0.2236465 
##   left son=1984 (22 obs) right son=1985 (55 obs)
##   Primary splits:
##       reward_length      < 6820     to the right, improve=0.07247360, (0 missing)
##       social_media_count splits as  RLLL, improve=0.07169641, (0 missing)
##       category           splits as  ----L-R---L----, improve=0.04658046, (0 missing)
##       description_length < 706      to the left,  improve=0.03386610, (0 missing)
##       campaign_duration  < 46.105   to the right, improve=0.02010973, (0 missing)
##   Surrogate splits:
##       category           splits as  ----L-R---R----, agree=0.740, adj=0.091, (0 split)
##       social_media_count splits as  RRRL, agree=0.727, adj=0.045, (0 split)
##       goal               < 3750     to the right, agree=0.727, adj=0.045, (0 split)
## 
## Node number 993: 7 observations
##   mean=0.8571429, MSE=0.122449 
## 
## Node number 994: 20 observations
##   mean=0.4, MSE=0.24 
## 
## Node number 995: 32 observations
##   mean=0.8125, MSE=0.1523438 
## 
## Node number 996: 36 observations,    complexity param=0.0001190144
##   mean=0.3611111, MSE=0.2307099 
##   left son=1992 (13 obs) right son=1993 (23 obs)
##   Primary splits:
##       reward_length      < 4371     to the right, improve=0.10524490, (0 missing)
##       mo_launched        splits as  --RL-R---RRR, improve=0.04983772, (0 missing)
##       campaign_duration  < 45.95    to the right, improve=0.04648105, (0 missing)
##       description_length < 658.5    to the left,  improve=0.04280936, (0 missing)
##       goal               < 2100     to the right, improve=0.03449594, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 37.21    to the left,  agree=0.694, adj=0.154, (0 split)
##       description_length < 1032.5   to the right, agree=0.694, adj=0.154, (0 split)
##       mo_launched        splits as  --RR-R---RLR, agree=0.667, adj=0.077, (0 split)
##       goal               < 900      to the left,  agree=0.667, adj=0.077, (0 split)
## 
## Node number 997: 11 observations
##   mean=0.8181818, MSE=0.1487603 
## 
## Node number 998: 23 observations,    complexity param=0.0002080595
##   mean=0.4782609, MSE=0.2495274 
##   left son=1996 (9 obs) right son=1997 (14 obs)
##   Primary splits:
##       mo_launched        splits as  L-RL-R--LRRR, improve=0.58928570, (0 missing)
##       goal               < 2225     to the left,  improve=0.22778930, (0 missing)
##       description_length < 786      to the left,  improve=0.06500271, (0 missing)
##       reward_length      < 5997.5   to the right, improve=0.04602273, (0 missing)
##       campaign_duration  < 79.42    to the right, improve=0.01888112, (0 missing)
##   Surrogate splits:
##       goal               < 850      to the left,  agree=0.783, adj=0.444, (0 split)
##       campaign_duration  < 63.585   to the left,  agree=0.696, adj=0.222, (0 split)
##       description_length < 639.5    to the left,  agree=0.696, adj=0.222, (0 split)
## 
## Node number 999: 236 observations,    complexity param=0.0001633467
##   mean=0.6949153, MSE=0.212008 
##   left son=1998 (79 obs) right son=1999 (157 obs)
##   Primary splits:
##       mo_launched        splits as  R-RR-L--LRLR, improve=0.023724040, (0 missing)
##       goal               < 949.5    to the right, improve=0.016289370, (0 missing)
##       reward_length      < 4616     to the right, improve=0.015404360, (0 missing)
##       description_length < 1067.5   to the left,  improve=0.009443811, (0 missing)
##       campaign_duration  < 37.06    to the left,  improve=0.008358574, (0 missing)
## 
## Node number 1000: 345 observations,    complexity param=0.0001385456
##   mean=0.6318841, MSE=0.2326066 
##   left son=2000 (124 obs) right son=2001 (221 obs)
##   Primary splits:
##       description_length < 677.5    to the left,  improve=0.016817010, (0 missing)
##       reward_length      < 4147.5   to the right, improve=0.016005750, (0 missing)
##       category           splits as  ----LRR---L--R-, improve=0.013624510, (0 missing)
##       goal               < 3467.17  to the right, improve=0.013317890, (0 missing)
##       campaign_duration  < 10.675   to the left,  improve=0.006734609, (0 missing)
##   Surrogate splits:
##       reward_length     < 6789     to the right, agree=0.652, adj=0.032, (0 split)
##       campaign_duration < 11.475   to the left,  agree=0.649, adj=0.024, (0 split)
##       goal              < 675      to the left,  agree=0.646, adj=0.016, (0 split)
## 
## Node number 1001: 322 observations,    complexity param=0.0001840924
##   mean=0.7546584, MSE=0.1851491 
##   left son=2002 (235 obs) right son=2003 (87 obs)
##   Primary splits:
##       campaign_duration  < 29.42    to the right, improve=0.028270190, (0 missing)
##       description_length < 791.5    to the right, improve=0.019133270, (0 missing)
##       mo_launched        splits as  L--LL---RL-R, improve=0.013790150, (0 missing)
##       reward_length      < 7570     to the right, improve=0.008360841, (0 missing)
##       category           splits as  ----L-R---L--R-, improve=0.007451249, (0 missing)
##   Surrogate splits:
##       description_length < 1102.5   to the left,  agree=0.733, adj=0.011, (0 split)
## 
## Node number 1002: 78 observations,    complexity param=0.0002006303
##   mean=0.6538462, MSE=0.2263314 
##   left son=2004 (34 obs) right son=2005 (44 obs)
##   Primary splits:
##       goal               < 2350     to the right, improve=0.11465870, (0 missing)
##       reward_length      < 11605.5  to the left,  improve=0.08256517, (0 missing)
##       social_media_count splits as  LRRR,         improve=0.03558460, (0 missing)
##       campaign_duration  < 31.015   to the left,  improve=0.01800345, (0 missing)
##       mo_launched        splits as  ----R---R-RL, improve=0.01176471, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  ----R---L-RL, agree=0.628, adj=0.147, (0 split)
##       description_length < 685.5    to the left,  agree=0.628, adj=0.147, (0 split)
##       reward_length      < 9169.5   to the right, agree=0.615, adj=0.118, (0 split)
##       campaign_duration  < 22.645   to the left,  agree=0.577, adj=0.029, (0 split)
##       social_media_count splits as  RRRL,         agree=0.577, adj=0.029, (0 split)
## 
## Node number 1003: 181 observations,    complexity param=0.0001264016
##   mean=0.839779, MSE=0.1345502 
##   left son=2006 (7 obs) right son=2007 (174 obs)
##   Primary splits:
##       social_media_count splits as  RRRL,         improve=0.05055761, (0 missing)
##       campaign_duration  < 29.98    to the right, improve=0.03622903, (0 missing)
##       description_length < 1106     to the right, improve=0.02153124, (0 missing)
##       goal               < 2900     to the right, improve=0.02134746, (0 missing)
##       reward_length      < 14780.5  to the right, improve=0.01989880, (0 missing)
## 
## Node number 1004: 33 observations
##   mean=0.6060606, MSE=0.2387511 
## 
## Node number 1005: 27 observations,    complexity param=0.000106886
##   mean=0.8518519, MSE=0.1262003 
##   left son=2010 (9 obs) right son=2011 (18 obs)
##   Primary splits:
##       goal               < 325      to the left,  improve=0.34782610, (0 missing)
##       description_length < 886.5    to the right, improve=0.17169620, (0 missing)
##       mo_launched        splits as  ----RR-R---L, improve=0.05248447, (0 missing)
##       campaign_duration  < 16.51    to the left,  improve=0.03461098, (0 missing)
##       reward_length      < 4848     to the right, improve=0.02663043, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 9.08     to the left,  agree=0.778, adj=0.333, (0 split)
##       category           splits as  ------L---R--L-, agree=0.778, adj=0.333, (0 split)
##       description_length < 959      to the right, agree=0.778, adj=0.333, (0 split)
##       usa                < 0.5      to the left,  agree=0.741, adj=0.222, (0 split)
##       social_media_count splits as  -RRL, agree=0.704, adj=0.111, (0 split)
## 
## Node number 1008: 1454 observations,    complexity param=0.0003228011
##   mean=0.718707, MSE=0.2021672 
##   left son=2016 (37 obs) right son=2017 (1417 obs)
##   Primary splits:
##       reward_length      < 4185     to the left,  improve=0.008680614, (0 missing)
##       mo_launched        splits as  RRRRLLLLLRRL, improve=0.007769697, (0 missing)
##       social_media_count splits as  LRLR,         improve=0.003097816, (0 missing)
##       goal               < 3604.5   to the right, improve=0.002528867, (0 missing)
##       campaign_duration  < 89.77    to the left,  improve=0.001795700, (0 missing)
## 
## Node number 1009: 192 observations,    complexity param=0.0002355625
##   mean=0.8489583, MSE=0.1282281 
##   left son=2018 (50 obs) right son=2019 (142 obs)
##   Primary splits:
##       reward_length      < 7015     to the right, improve=0.045666460, (0 missing)
##       mo_launched        splits as  RLRRRLRRRRLL, improve=0.042600840, (0 missing)
##       description_length < 1243     to the left,  improve=0.012958090, (0 missing)
##       social_media_count splits as  RLLR,         improve=0.010000790, (0 missing)
##       usa                < 0.5      to the left,  improve=0.009507691, (0 missing)
##   Surrogate splits:
##       usa                < 0.5      to the left,  agree=0.750, adj=0.04, (0 split)
##       mo_launched        splits as  RRRRRRRRRRRL, agree=0.750, adj=0.04, (0 split)
##       campaign_duration  < 61.22    to the right, agree=0.745, adj=0.02, (0 split)
##       description_length < 6342     to the right, agree=0.745, adj=0.02, (0 split)
## 
## Node number 1010: 541 observations,    complexity param=0.0002008804
##   mean=0.7578558, MSE=0.1835104 
##   left son=2020 (355 obs) right son=2021 (186 obs)
##   Primary splits:
##       mo_launched       splits as  RRLLLLLLLLRR, improve=0.018664890, (0 missing)
##       reward_length     < 5817.5   to the right, improve=0.008918773, (0 missing)
##       goal              < 1775     to the right, improve=0.007103479, (0 missing)
##       category          splits as  -RRRLRL----R--R, improve=0.006017179, (0 missing)
##       campaign_duration < 50.955   to the right, improve=0.005508090, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 29.965   to the right, agree=0.686, adj=0.086, (0 split)
##       description_length < 2161.5   to the left,  agree=0.665, adj=0.027, (0 split)
##       category           splits as  -LRLLLL----R--R, agree=0.662, adj=0.016, (0 split)
##       usa                < 0.5      to the right, agree=0.660, adj=0.011, (0 split)
##       social_media_count splits as  LLLR, agree=0.660, adj=0.011, (0 split)
## 
## Node number 1011: 746 observations,    complexity param=0.0001591987
##   mean=0.8404826, MSE=0.1340716 
##   left son=2022 (96 obs) right son=2023 (650 obs)
##   Primary splits:
##       reward_length      < 8042.5   to the right, improve=0.013650090, (0 missing)
##       mo_launched        splits as  RLRRRLLLLLLL, improve=0.007119474, (0 missing)
##       description_length < 4629.5   to the left,  improve=0.006446340, (0 missing)
##       goal               < 450      to the right, improve=0.006308897, (0 missing)
##       category           splits as  -RRRLRL--R----R, improve=0.005767180, (0 missing)
##   Surrogate splits:
##       goal               < 4162.5   to the right, agree=0.874, adj=0.021, (0 split)
##       social_media_count splits as  RRRL,         agree=0.873, adj=0.010, (0 split)
##       description_length < 10531.5  to the right, agree=0.873, adj=0.010, (0 split)
## 
## Node number 1012: 474 observations,    complexity param=0.0001628544
##   mean=0.7742616, MSE=0.1747806 
##   left son=2024 (101 obs) right son=2025 (373 obs)
##   Primary splits:
##       category           splits as  -RR-RRLR--R--R-, improve=0.019052210, (0 missing)
##       goal               < 1150     to the right, improve=0.015789280, (0 missing)
##       social_media_count splits as  LRLR, improve=0.010327610, (0 missing)
##       campaign_duration  < 59.74    to the left,  improve=0.010218950, (0 missing)
##       reward_length      < 13813    to the left,  improve=0.008373242, (0 missing)
##   Surrogate splits:
##       goal < 341.5    to the left,  agree=0.793, adj=0.03, (0 split)
## 
## Node number 1013: 155 observations
##   mean=0.883871, MSE=0.1026431 
## 
## Node number 1014: 12 observations
##   mean=0.5833333, MSE=0.2430556 
## 
## Node number 1015: 496 observations
##   mean=0.8850806, MSE=0.1017129 
## 
## Node number 1016: 8 observations
##   mean=0.25, MSE=0.1875 
## 
## Node number 1017: 236 observations,    complexity param=0.0001982897
##   mean=0.7838983, MSE=0.1694018 
##   left son=2034 (41 obs) right son=2035 (195 obs)
##   Primary splits:
##       description_length < 3422.5   to the right, improve=0.048920890, (0 missing)
##       mo_launched        splits as  LLRLLLRLRLLR, improve=0.023803680, (0 missing)
##       reward_length      < 6194     to the right, improve=0.014551950, (0 missing)
##       goal               < 3952.5   to the right, improve=0.013549910, (0 missing)
##       social_media_count splits as  RRLR,         improve=0.006323731, (0 missing)
##   Surrogate splits:
##       reward_length < 6345     to the right, agree=0.835, adj=0.049, (0 split)
## 
## Node number 1018: 81 observations,    complexity param=0.0001982897
##   mean=0.7530864, MSE=0.1859473 
##   left son=2036 (44 obs) right son=2037 (37 obs)
##   Primary splits:
##       goal               < 1225     to the right, improve=0.16820600, (0 missing)
##       campaign_duration  < 28.305   to the right, improve=0.08424798, (0 missing)
##       reward_length      < 5170.5   to the right, improve=0.02713365, (0 missing)
##       mo_launched        splits as  -------R--RL, improve=0.02433202, (0 missing)
##       description_length < 1367.5   to the left,  improve=0.01678745, (0 missing)
##   Surrogate splits:
##       reward_length      < 5027.5   to the right, agree=0.654, adj=0.243, (0 split)
##       campaign_duration  < 20.195   to the right, agree=0.630, adj=0.189, (0 split)
##       description_length < 2517     to the left,  agree=0.630, adj=0.189, (0 split)
##       usa                < 0.5      to the right, agree=0.593, adj=0.108, (0 split)
##       category           splits as  -RR-L-L-------L, agree=0.580, adj=0.081, (0 split)
## 
## Node number 1019: 297 observations
##   mean=0.9090909, MSE=0.08264463 
## 
## Node number 1020: 269 observations,    complexity param=0.0001323152
##   mean=0.8252788, MSE=0.1441937 
##   left son=2040 (90 obs) right son=2041 (179 obs)
##   Primary splits:
##       mo_launched        splits as  RRRRLRLRLRLR, improve=0.03703350, (0 missing)
##       category           splits as  --LRL-R---R--RR, improve=0.03618173, (0 missing)
##       description_length < 2442.5   to the right, improve=0.01709117, (0 missing)
##       goal               < 775      to the right, improve=0.01648066, (0 missing)
##       campaign_duration  < 27.37    to the left,  improve=0.01419518, (0 missing)
##   Surrogate splits:
##       social_media_count splits as  RRRL,         agree=0.673, adj=0.022, (0 split)
##       description_length < 1146.5   to the left,  agree=0.673, adj=0.022, (0 split)
##       campaign_duration  < 29.48    to the right, agree=0.669, adj=0.011, (0 split)
##       reward_length      < 6446     to the left,  agree=0.669, adj=0.011, (0 split)
## 
## Node number 1021: 252 observations
##   mean=0.9246032, MSE=0.06971214 
## 
## Node number 1114: 19 observations
##   mean=0.05263158, MSE=0.0498615 
## 
## Node number 1115: 19 observations
##   mean=0.4736842, MSE=0.2493075 
## 
## Node number 1116: 34 observations,    complexity param=0.0001219232
##   mean=0.1470588, MSE=0.1254325 
##   left son=2232 (21 obs) right son=2233 (13 obs)
##   Primary splits:
##       reward_length      < 4413.5   to the left,  improve=0.27851460, (0 missing)
##       social_media_count splits as  RLR-, improve=0.08245877, (0 missing)
##       mo_launched        splits as  -RRL---LR-R-, improve=0.05305040, (0 missing)
##       goal               < 9750     to the left,  improve=0.04469987, (0 missing)
##       category           splits as  R---------L--R-, improve=0.04067756, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 29.98    to the right, agree=0.706, adj=0.231, (0 split)
##       mo_launched        splits as  -RLL---LL-L-, agree=0.647, adj=0.077, (0 split)
##       category           splits as  L---------L--R-, agree=0.647, adj=0.077, (0 split)
##       description_length < 3806     to the left,  agree=0.647, adj=0.077, (0 split)
## 
## Node number 1117: 9 observations
##   mean=0.5555556, MSE=0.2469136 
## 
## Node number 1118: 40 observations
##   mean=0.475, MSE=0.249375 
## 
## Node number 1119: 9 observations
##   mean=0.8888889, MSE=0.09876543 
## 
## Node number 1142: 86 observations,    complexity param=0.0001354076
##   mean=0.2325581, MSE=0.1784749 
##   left son=2284 (19 obs) right son=2285 (67 obs)
##   Primary splits:
##       category           splits as  --------L---R--, improve=0.08593397, (0 missing)
##       reward_length      < 3150     to the right, improve=0.05273126, (0 missing)
##       mo_launched        splits as  --R--R-LRLRL, improve=0.04303424, (0 missing)
##       description_length < 1756     to the right, improve=0.03841190, (0 missing)
##       campaign_duration  < 35.75    to the left,  improve=0.02559318, (0 missing)
##   Surrogate splits:
##       reward_length < 4557     to the right, agree=0.826, adj=0.211, (0 split)
## 
## Node number 1143: 55 observations
##   mean=0.4545455, MSE=0.2479339 
## 
## Node number 1144: 62 observations
##   mean=0.09677419, MSE=0.08740895 
## 
## Node number 1145: 59 observations,    complexity param=0.0001010265
##   mean=0.3050847, MSE=0.212008 
##   left son=2290 (41 obs) right son=2291 (18 obs)
##   Primary splits:
##       mo_launched        splits as  ---LLLRLR-L-, improve=0.07867341, (0 missing)
##       reward_length      < 4004     to the right, improve=0.04504303, (0 missing)
##       social_media_count splits as  RLLL,         improve=0.04261468, (0 missing)
##       goal               < 5100     to the right, improve=0.02671114, (0 missing)
##       description_length < 1115.5   to the right, improve=0.02179140, (0 missing)
##   Surrogate splits:
##       description_length < 1388.5   to the left,  agree=0.746, adj=0.167, (0 split)
##       campaign_duration  < 13.85    to the right, agree=0.729, adj=0.111, (0 split)
##       goal               < 4735.5   to the right, agree=0.712, adj=0.056, (0 split)
## 
## Node number 1146: 59 observations
##   mean=0.3220339, MSE=0.2183281 
## 
## Node number 1147: 9 observations
##   mean=0.7777778, MSE=0.1728395 
## 
## Node number 1148: 31 observations
##   mean=0.1612903, MSE=0.1352758 
## 
## Node number 1149: 159 observations,    complexity param=0.0001743257
##   mean=0.4465409, MSE=0.2471421 
##   left son=2298 (80 obs) right son=2299 (79 obs)
##   Primary splits:
##       reward_length      < 4071     to the left,  improve=0.03818903, (0 missing)
##       goal               < 5067     to the right, improve=0.03720245, (0 missing)
##       description_length < 2141.5   to the left,  improve=0.02648925, (0 missing)
##       campaign_duration  < 64.52    to the right, improve=0.01650611, (0 missing)
##       category           splits as  L---------L--R-, improve=0.01027102, (0 missing)
##   Surrogate splits:
##       description_length < 2082     to the left,  agree=0.591, adj=0.177, (0 split)
##       mo_launched        splits as  L-RLRR---LLR, agree=0.579, adj=0.152, (0 split)
##       goal               < 5660     to the right, agree=0.579, adj=0.152, (0 split)
##       category           splits as  R---------L--R-, agree=0.572, adj=0.139, (0 split)
##       campaign_duration  < 28.65    to the left,  agree=0.535, adj=0.063, (0 split)
## 
## Node number 1150: 14 observations
##   mean=0.3571429, MSE=0.2295918 
## 
## Node number 1151: 80 observations
##   mean=0.6875, MSE=0.2148438 
## 
## Node number 1198: 7 observations
##   mean=0.2857143, MSE=0.2040816 
## 
## Node number 1199: 16 observations
##   mean=0.875, MSE=0.109375 
## 
## Node number 1210: 13 observations
##   mean=0.3846154, MSE=0.2366864 
## 
## Node number 1211: 7 observations
##   mean=1, MSE=0 
## 
## Node number 1252: 14 observations
##   mean=0.2142857, MSE=0.1683673 
## 
## Node number 1253: 57 observations,    complexity param=0.0001494703
##   mean=0.5263158, MSE=0.2493075 
##   left son=2506 (26 obs) right son=2507 (31 obs)
##   Primary splits:
##       description_length < 2240     to the right, improve=0.06754894, (0 missing)
##       campaign_duration  < 41.19    to the left,  improve=0.04050000, (0 missing)
##       reward_length      < 4614.5   to the left,  improve=0.03873518, (0 missing)
##       social_media_count splits as  LRL-,         improve=0.02574468, (0 missing)
##       goal               < 12782    to the right, improve=0.02235450, (0 missing)
##   Surrogate splits:
##       mo_launched   splits as  L-RLRRRLR-L-, agree=0.667, adj=0.269, (0 split)
##       reward_length < 4028     to the left,  agree=0.596, adj=0.115, (0 split)
##       usa           < 0.5      to the left,  agree=0.579, adj=0.077, (0 split)
##       video_status  < 0.5      to the left,  agree=0.579, adj=0.077, (0 split)
##       goal          < 8375     to the left,  agree=0.579, adj=0.077, (0 split)
## 
## Node number 1254: 41 observations,    complexity param=0.0001115444
##   mean=0.6341463, MSE=0.2320048 
##   left son=2508 (13 obs) right son=2509 (28 obs)
##   Primary splits:
##       reward_length      < 4297.5   to the left,  improve=0.12460550, (0 missing)
##       mo_launched        splits as  LRRRRLLRRLR-, improve=0.11564880, (0 missing)
##       description_length < 5964     to the left,  improve=0.04412842, (0 missing)
##       goal               < 8744     to the right, improve=0.04412842, (0 missing)
##       campaign_duration  < 29.175   to the right, improve=0.03824648, (0 missing)
##   Surrogate splits:
##       mo_launched splits as  LRRRRRLRRRR-, agree=0.732, adj=0.154, (0 split)
## 
## Node number 1255: 9 observations
##   mean=1, MSE=0 
## 
## Node number 1260: 8 observations
##   mean=0.125, MSE=0.109375 
## 
## Node number 1261: 21 observations,    complexity param=0.0001686254
##   mean=0.6666667, MSE=0.2222222 
##   left son=2522 (12 obs) right son=2523 (9 obs)
##   Primary splits:
##       description_length < 2045.5   to the right, improve=0.3750000, (0 missing)
##       campaign_duration  < 36.27    to the right, improve=0.1666667, (0 missing)
##       reward_length      < 4327     to the right, improve=0.1275510, (0 missing)
##       mo_launched        splits as  R--LR--L-LRR, improve=0.1201923, (0 missing)
##   Surrogate splits:
##       goal               < 5500     to the left,  agree=0.714, adj=0.333, (0 split)
##       reward_length      < 3090     to the right, agree=0.714, adj=0.333, (0 split)
##       social_media_count splits as  LR--,         agree=0.667, adj=0.222, (0 split)
##       mo_launched        splits as  L--LL--L-LRL, agree=0.667, adj=0.222, (0 split)
##       campaign_duration  < 66.955   to the left,  agree=0.619, adj=0.111, (0 split)
## 
## Node number 1262: 43 observations,    complexity param=0.0001686254
##   mean=0.5813953, MSE=0.2433748 
##   left son=2524 (10 obs) right son=2525 (33 obs)
##   Primary splits:
##       mo_launched        splits as  RRRRLRRRLLRR, improve=0.18111780, (0 missing)
##       reward_length      < 3229     to the right, improve=0.14000000, (0 missing)
##       campaign_duration  < 29.98    to the right, improve=0.12639060, (0 missing)
##       goal               < 6250     to the right, improve=0.09859259, (0 missing)
##       description_length < 1972.5   to the right, improve=0.06697601, (0 missing)
##   Surrogate splits:
##       campaign_duration < 60.02    to the right, agree=0.791, adj=0.1, (0 split)
## 
## Node number 1263: 143 observations,    complexity param=0.0001117706
##   mean=0.7972028, MSE=0.1616705 
##   left son=2526 (115 obs) right son=2527 (28 obs)
##   Primary splits:
##       reward_length      < 4562     to the left,  improve=0.02599039, (0 missing)
##       campaign_duration  < 57.385   to the right, improve=0.02453220, (0 missing)
##       mo_launched        splits as  LLRRLLRLRLLL, improve=0.02409717, (0 missing)
##       description_length < 3661.5   to the left,  improve=0.02185420, (0 missing)
##       social_media_count splits as  RLL-,         improve=0.02008789, (0 missing)
## 
## Node number 1290: 107 observations
##   mean=0.1214953, MSE=0.1067342 
## 
## Node number 1291: 88 observations,    complexity param=0.000131372
##   mean=0.2613636, MSE=0.1930527 
##   left son=2582 (21 obs) right son=2583 (67 obs)
##   Primary splits:
##       description_length < 958.5    to the left,  improve=0.11090700, (0 missing)
##       reward_length      < 8345     to the right, improve=0.03054352, (0 missing)
##       mo_launched        splits as  --RR-LL-RL--, improve=0.02899164, (0 missing)
##       goal               < 10940    to the left,  improve=0.02805541, (0 missing)
##       campaign_duration  < 30.86    to the left,  improve=0.02041223, (0 missing)
## 
## Node number 1292: 45 observations
##   mean=0.08888889, MSE=0.08098765 
## 
## Node number 1293: 285 observations,    complexity param=0.0001303732
##   mean=0.2526316, MSE=0.1888089 
##   left son=2586 (16 obs) right son=2587 (269 obs)
##   Primary splits:
##       goal               < 17250    to the left,  improve=0.02010576, (0 missing)
##       campaign_duration  < 59.545   to the right, improve=0.01533625, (0 missing)
##       mo_launched        splits as  LLRRLRRRRRLR, improve=0.01497521, (0 missing)
##       usa                < 0.5      to the left,  improve=0.01485838, (0 missing)
##       description_length < 1921.5   to the left,  improve=0.01485838, (0 missing)
## 
## Node number 1294: 306 observations,    complexity param=0.0001369138
##   mean=0.2973856, MSE=0.2089474 
##   left son=2588 (228 obs) right son=2589 (78 obs)
##   Primary splits:
##       description_length < 3602.5   to the left,  improve=0.02085863, (0 missing)
##       reward_length      < 6941     to the left,  improve=0.01521352, (0 missing)
##       goal               < 9999.5   to the left,  improve=0.01282593, (0 missing)
##       campaign_duration  < 46.03    to the right, improve=0.01224190, (0 missing)
##       mo_launched        splits as  RR--R-RL-RRL, improve=0.01097770, (0 missing)
##   Surrogate splits:
##       campaign_duration < 11       to the right, agree=0.748, adj=0.013, (0 split)
##       reward_length     < 5339     to the right, agree=0.748, adj=0.013, (0 split)
## 
## Node number 1295: 168 observations,    complexity param=0.0001487692
##   mean=0.4285714, MSE=0.244898 
##   left son=2590 (88 obs) right son=2591 (80 obs)
##   Primary splits:
##       category           splits as  R-------R---LL-, improve=0.026148200, (0 missing)
##       reward_length      < 5492.5   to the left,  improve=0.013706140, (0 missing)
##       goal               < 12684.5  to the right, improve=0.013550140, (0 missing)
##       campaign_duration  < 44.89    to the left,  improve=0.011865230, (0 missing)
##       social_media_count splits as  LRLR, improve=0.007894737, (0 missing)
##   Surrogate splits:
##       campaign_duration < 39.52    to the left,  agree=0.607, adj=0.175, (0 split)
##       mo_launched       splits as  --LR-L--L---, agree=0.577, adj=0.112, (0 split)
##       goal              < 10250    to the right, agree=0.554, adj=0.063, (0 split)
##       reward_length     < 10881    to the left,  agree=0.554, adj=0.063, (0 split)
##       usa               < 0.5      to the right, agree=0.548, adj=0.050, (0 split)
## 
## Node number 1296: 86 observations
##   mean=0.05813953, MSE=0.05475933 
## 
## Node number 1297: 89 observations,    complexity param=0.0001145255
##   mean=0.2134831, MSE=0.1679081 
##   left son=2594 (20 obs) right son=2595 (69 obs)
##   Primary splits:
##       category           splits as  R-------R---L--, improve=0.07867495, (0 missing)
##       campaign_duration  < 42.79    to the right, improve=0.06408730, (0 missing)
##       description_length < 6691.5   to the left,  improve=0.06261163, (0 missing)
##       reward_length      < 6800.5   to the left,  improve=0.04583620, (0 missing)
##       goal               < 172500   to the right, improve=0.04230056, (0 missing)
##   Surrogate splits:
##       goal < 27500    to the left,  agree=0.787, adj=0.05, (0 split)
## 
## Node number 1298: 44 observations
##   mean=0.2954545, MSE=0.2081612 
## 
## Node number 1299: 14 observations
##   mean=0.6428571, MSE=0.2295918 
## 
## Node number 1300: 122 observations,    complexity param=0.0001113394
##   mean=0.1885246, MSE=0.1529831 
##   left son=2600 (109 obs) right son=2601 (13 obs)
##   Primary splits:
##       campaign_duration  < 59.115   to the left,  improve=0.05810893, (0 missing)
##       category           splits as  R-------R---L--, improve=0.02848196, (0 missing)
##       reward_length      < 7053     to the left,  improve=0.02096059, (0 missing)
##       social_media_count splits as  RLLL, improve=0.02087603, (0 missing)
##       description_length < 8488     to the right, improve=0.01370304, (0 missing)
## 
## Node number 1301: 119 observations,    complexity param=0.0001599407
##   mean=0.3529412, MSE=0.2283737 
##   left son=2602 (41 obs) right son=2603 (78 obs)
##   Primary splits:
##       mo_launched        splits as  R-L-RR-R--L-, improve=0.05732750, (0 missing)
##       reward_length      < 11314.5  to the right, improve=0.05004170, (0 missing)
##       description_length < 8257.5   to the right, improve=0.04056933, (0 missing)
##       social_media_count splits as  RRLL,         improve=0.03062188, (0 missing)
##       usa                < 0.5      to the left,  improve=0.02570197, (0 missing)
##   Surrogate splits:
##       usa                < 0.5      to the left,  agree=0.723, adj=0.195, (0 split)
##       reward_length      < 11045.5  to the right, agree=0.706, adj=0.146, (0 split)
##       campaign_duration  < 29.98    to the left,  agree=0.697, adj=0.122, (0 split)
##       description_length < 9891.5   to the right, agree=0.664, adj=0.024, (0 split)
## 
## Node number 1302: 194 observations,    complexity param=0.0002682542
##   mean=0.4226804, MSE=0.2440217 
##   left son=2604 (171 obs) right son=2605 (23 obs)
##   Primary splits:
##       description_length < 11490.5  to the left,  improve=0.05519676, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.04827316, (0 missing)
##       campaign_duration  < 30.095   to the left,  improve=0.03651701, (0 missing)
##       reward_length      < 5875     to the left,  improve=0.02385932, (0 missing)
##       mo_launched        splits as  -R-L--L-LR-L, improve=0.01785789, (0 missing)
## 
## Node number 1303: 27 observations
##   mean=0.7777778, MSE=0.1728395 
## 
## Node number 1308: 130 observations,    complexity param=0.0001486531
##   mean=0.3923077, MSE=0.2384024 
##   left son=2616 (119 obs) right son=2617 (11 obs)
##   Primary splits:
##       reward_length      < 10480    to the left,  improve=0.04350449, (0 missing)
##       campaign_duration  < 36.91    to the right, improve=0.04143083, (0 missing)
##       description_length < 5242.5   to the right, improve=0.04118331, (0 missing)
##       goal               < 14500    to the right, improve=0.01507818, (0 missing)
##       social_media_count splits as  LRL-,         improve=0.01289384, (0 missing)
## 
## Node number 1309: 106 observations,    complexity param=0.0001411348
##   mean=0.5471698, MSE=0.247775 
##   left son=2618 (15 obs) right son=2619 (91 obs)
##   Primary splits:
##       reward_length      < 6396     to the left,  improve=0.05234411, (0 missing)
##       social_media_count splits as  LRRL,         improve=0.03085960, (0 missing)
##       campaign_duration  < 30.215   to the left,  improve=0.02817243, (0 missing)
##       goal               < 95000    to the left,  improve=0.02119635, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.01950747, (0 missing)
##   Surrogate splits:
##       campaign_duration < 21.02    to the left,  agree=0.868, adj=0.067, (0 split)
## 
## Node number 1310: 8 observations
##   mean=0.25, MSE=0.1875 
## 
## Node number 1311: 20 observations
##   mean=0.95, MSE=0.0475 
## 
## Node number 1312: 88 observations
##   mean=0.06818182, MSE=0.06353306 
## 
## Node number 1313: 76 observations,    complexity param=0.0001458735
##   mean=0.2236842, MSE=0.1736496 
##   left son=2626 (69 obs) right son=2627 (7 obs)
##   Primary splits:
##       mo_launched        splits as  LLLRLLLLLLRL, improve=0.14061540, (0 missing)
##       campaign_duration  < 30.3     to the left,  improve=0.08075773, (0 missing)
##       reward_length      < 8969.5   to the left,  improve=0.06661833, (0 missing)
##       description_length < 2057.5   to the left,  improve=0.05533573, (0 missing)
##       category           splits as  R-------R---LL-, improve=0.02113352, (0 missing)
##   Surrogate splits:
##       goal < 9550     to the left,  agree=0.921, adj=0.143, (0 split)
## 
## Node number 1314: 15 observations
##   mean=0.06666667, MSE=0.06222222 
## 
## Node number 1315: 13 observations
##   mean=0.6923077, MSE=0.2130178 
## 
## Node number 1328: 13 observations
##   mean=0.07692308, MSE=0.07100592 
## 
## Node number 1329: 344 observations,    complexity param=0.0001262147
##   mean=0.3488372, MSE=0.2271498 
##   left son=2658 (17 obs) right son=2659 (327 obs)
##   Primary splits:
##       reward_length      < 8834     to the right, improve=0.012232840, (0 missing)
##       description_length < 9555     to the left,  improve=0.008749880, (0 missing)
##       usa                < 0.5      to the left,  improve=0.007924139, (0 missing)
##       social_media_count splits as  LRR-,         improve=0.007910289, (0 missing)
##       goal               < 5150     to the right, improve=0.006122534, (0 missing)
## 
## Node number 1330: 311 observations,    complexity param=0.0002063601
##   mean=0.4051447, MSE=0.2410025 
##   left son=2660 (76 obs) right son=2661 (235 obs)
##   Primary splits:
##       campaign_duration  < 40.07    to the right, improve=0.03229967, (0 missing)
##       usa                < 0.5      to the left,  improve=0.02029712, (0 missing)
##       reward_length      < 5426     to the left,  improve=0.01812769, (0 missing)
##       description_length < 4508     to the right, improve=0.01714752, (0 missing)
##       goal               < 7200     to the right, improve=0.01583061, (0 missing)
##   Surrogate splits:
##       goal < 9055     to the right, agree=0.759, adj=0.013, (0 split)
## 
## Node number 1331: 87 observations,    complexity param=0.0001405671
##   mean=0.5632184, MSE=0.2460034 
##   left son=2662 (7 obs) right son=2663 (80 obs)
##   Primary splits:
##       goal               < 4712.5   to the left,  improve=0.06285101, (0 missing)
##       reward_length      < 8078     to the left,  improve=0.04402566, (0 missing)
##       description_length < 5849     to the right, improve=0.04233331, (0 missing)
##       campaign_duration  < 31.83    to the left,  improve=0.04002770, (0 missing)
##       category           splits as  --------R---L--, improve=0.03344684, (0 missing)
##   Surrogate splits:
##       social_media_count splits as  RRRL, agree=0.931, adj=0.143, (0 split)
## 
## Node number 1332: 45 observations,    complexity param=0.0001052973
##   mean=0.2444444, MSE=0.1846914 
##   left son=2664 (26 obs) right son=2665 (19 obs)
##   Primary splits:
##       goal               < 5055.5   to the right, improve=0.12341140, (0 missing)
##       mo_launched        splits as  R-----LRLRLL, improve=0.12208580, (0 missing)
##       description_length < 2922     to the right, improve=0.08556150, (0 missing)
##       campaign_duration  < 45.02    to the left,  improve=0.07319673, (0 missing)
##       reward_length      < 6273     to the right, improve=0.02031240, (0 missing)
##   Surrogate splits:
##       description_length < 2028     to the right, agree=0.644, adj=0.158, (0 split)
##       campaign_duration  < 57.8     to the left,  agree=0.622, adj=0.105, (0 split)
##       mo_launched        splits as  L-----LRLLLR, agree=0.622, adj=0.105, (0 split)
## 
## Node number 1333: 196 observations,    complexity param=0.0001911379
##   mean=0.4846939, MSE=0.2497657 
##   left son=2666 (23 obs) right son=2667 (173 obs)
##   Primary splits:
##       description_length < 1405.5   to the left,  improve=0.03803253, (0 missing)
##       reward_length      < 6334.5   to the left,  improve=0.02498698, (0 missing)
##       goal               < 7900     to the left,  improve=0.02368875, (0 missing)
##       campaign_duration  < 20.195   to the left,  improve=0.01744659, (0 missing)
##       category           splits as  L------------R-, improve=0.01364920, (0 missing)
##   Surrogate splits:
##       social_media_count splits as  RRRL, agree=0.888, adj=0.043, (0 split)
## 
## Node number 1334: 70 observations,    complexity param=0.0001939548
##   mean=0.4714286, MSE=0.2491837 
##   left son=2668 (14 obs) right son=2669 (56 obs)
##   Primary splits:
##       reward_length      < 7655     to the right, improve=0.10831290, (0 missing)
##       description_length < 892.5    to the right, improve=0.10318660, (0 missing)
##       mo_launched        splits as  -LRLLL------, improve=0.08996263, (0 missing)
##       goal               < 7100     to the right, improve=0.06485151, (0 missing)
##       social_media_count splits as  RLL-,         improve=0.04927655, (0 missing)
##   Surrogate splits:
##       description_length < 2083.5   to the right, agree=0.843, adj=0.214, (0 split)
##       goal               < 8900     to the right, agree=0.829, adj=0.143, (0 split)
## 
## Node number 1335: 125 observations,    complexity param=0.000101404
##   mean=0.68, MSE=0.2176 
##   left son=2670 (118 obs) right son=2671 (7 obs)
##   Primary splits:
##       goal               < 4650     to the right, improve=0.02791625, (0 missing)
##       social_media_count splits as  LRL-,         improve=0.02567463, (0 missing)
##       campaign_duration  < 59.98    to the left,  improve=0.02327259, (0 missing)
##       description_length < 5786     to the left,  improve=0.02301198, (0 missing)
##       mo_launched        splits as  -LLRLR------, improve=0.02272515, (0 missing)
## 
## Node number 1336: 61 observations,    complexity param=0.0001155877
##   mean=0.3114754, MSE=0.2144585 
##   left son=2672 (26 obs) right son=2673 (35 obs)
##   Primary splits:
##       mo_launched       splits as  ----RRR---LL, improve=0.08606682, (0 missing)
##       category          splits as  R-------R---LL-, improve=0.06547005, (0 missing)
##       campaign_duration < 29.685   to the left,  improve=0.05864198, (0 missing)
##       reward_length     < 9799     to the left,  improve=0.03584109, (0 missing)
##       goal              < 8002.5   to the right, improve=0.02826579, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 45.66    to the right, agree=0.623, adj=0.115, (0 split)
##       category           splits as  R-------L---RR-, agree=0.623, adj=0.115, (0 split)
##       goal               < 7600     to the left,  agree=0.607, adj=0.077, (0 split)
##       description_length < 2278.5   to the left,  agree=0.607, adj=0.077, (0 split)
##       usa                < 0.5      to the left,  agree=0.590, adj=0.038, (0 split)
## 
## Node number 1337: 103 observations,    complexity param=0.0001448183
##   mean=0.4951456, MSE=0.2499764 
##   left son=2674 (94 obs) right son=2675 (9 obs)
##   Primary splits:
##       description_length < 9830     to the left,  improve=0.05938023, (0 missing)
##       reward_length      < 10438    to the right, improve=0.03861553, (0 missing)
##       campaign_duration  < 36.305   to the right, improve=0.02030430, (0 missing)
##       social_media_count splits as  RRL-, improve=0.02024490, (0 missing)
##       category           splits as  L-------R---RR-, improve=0.01094029, (0 missing)
## 
## Node number 1342: 16 observations
##   mean=0.375, MSE=0.234375 
## 
## Node number 1343: 194 observations,    complexity param=0.0001041659
##   mean=0.7164948, MSE=0.20313 
##   left son=2686 (15 obs) right son=2687 (179 obs)
##   Primary splits:
##       description_length < 1616.5   to the left,  improve=0.02574821, (0 missing)
##       mo_launched        splits as  LLRL---LRL--, improve=0.02264841, (0 missing)
##       goal               < 5525     to the left,  improve=0.01926711, (0 missing)
##       campaign_duration  < 27.53    to the left,  improve=0.01568586, (0 missing)
##       reward_length      < 11025    to the right, improve=0.01011223, (0 missing)
## 
## Node number 1360: 29 observations
##   mean=0.06896552, MSE=0.06420927 
## 
## Node number 1361: 86 observations,    complexity param=0.0001489766
##   mean=0.3255814, MSE=0.2195782 
##   left son=2722 (21 obs) right son=2723 (65 obs)
##   Primary splits:
##       campaign_duration  < 37.73    to the right, improve=0.07806709, (0 missing)
##       description_length < 6294.5   to the left,  improve=0.03049326, (0 missing)
##       reward_length      < 18337.5  to the right, improve=0.02723313, (0 missing)
##       goal               < 33000    to the right, improve=0.02246705, (0 missing)
##       mo_launched        splits as  -R-R-----R-L, improve=0.00945035, (0 missing)
##   Surrogate splits:
##       description_length < 5562.5   to the left,  agree=0.791, adj=0.143, (0 split)
##       mo_launched        splits as  -R-R-----R-L, agree=0.779, adj=0.095, (0 split)
##       category           splits as  L-------R---R--, agree=0.779, adj=0.095, (0 split)
##       video_status       < 0.5      to the left,  agree=0.767, adj=0.048, (0 split)
## 
## Node number 1362: 58 observations,    complexity param=0.0001396785
##   mean=0.2586207, MSE=0.191736 
##   left son=2724 (36 obs) right son=2725 (22 obs)
##   Primary splits:
##       reward_length      < 14168    to the right, improve=0.12234750, (0 missing)
##       description_length < 6465.5   to the right, improve=0.11946960, (0 missing)
##       goal               < 137500   to the left,  improve=0.08446273, (0 missing)
##       mo_launched        splits as  L-L-RRLRR-L-, improve=0.07901789, (0 missing)
##       campaign_duration  < 30.855   to the right, improve=0.03112935, (0 missing)
##   Surrogate splits:
##       goal               < 187500   to the left,  agree=0.690, adj=0.182, (0 split)
##       mo_launched        splits as  L-R-LRLLL-L-, agree=0.672, adj=0.136, (0 split)
##       social_media_count splits as  LRRL,         agree=0.655, adj=0.091, (0 split)
##       description_length < 4791     to the right, agree=0.638, adj=0.045, (0 split)
## 
## Node number 1363: 164 observations,    complexity param=0.0002041249
##   mean=0.4695122, MSE=0.2490705 
##   left son=2726 (58 obs) right son=2727 (106 obs)
##   Primary splits:
##       goal               < 77000    to the right, improve=0.05565548, (0 missing)
##       description_length < 7876     to the right, improve=0.04530813, (0 missing)
##       reward_length      < 17177    to the left,  improve=0.04465786, (0 missing)
##       campaign_duration  < 31.61    to the left,  improve=0.02150600, (0 missing)
##       mo_launched        splits as  L-R-LLLLL-L-, improve=0.02062531, (0 missing)
##   Surrogate splits:
##       reward_length     < 19047.5  to the right, agree=0.659, adj=0.034, (0 split)
##       campaign_duration < 59.995   to the right, agree=0.652, adj=0.017, (0 split)
## 
## Node number 1368: 57 observations,    complexity param=0.0001498951
##   mean=0.3684211, MSE=0.232687 
##   left son=2736 (23 obs) right son=2737 (34 obs)
##   Primary splits:
##       reward_length      < 27110    to the left,  improve=0.10998960, (0 missing)
##       mo_launched        splits as  RL--R-L-RLL-, improve=0.08466296, (0 missing)
##       description_length < 6517     to the right, improve=0.02821869, (0 missing)
##       social_media_count splits as  RLL-,         improve=0.02625000, (0 missing)
##       campaign_duration  < 29.535   to the right, improve=0.02479592, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 56.62    to the right, agree=0.649, adj=0.130, (0 split)
##       mo_launched        splits as  RL--R-R-RRR-, agree=0.632, adj=0.087, (0 split)
##       social_media_count splits as  RRL-, agree=0.614, adj=0.043, (0 split)
##       category           splits as  R-------R---RL-, agree=0.614, adj=0.043, (0 split)
##       goal               < 42500    to the left,  agree=0.614, adj=0.043, (0 split)
## 
## Node number 1369: 40 observations
##   mean=0.675, MSE=0.219375 
## 
## Node number 1376: 59 observations,    complexity param=0.0002004815
##   mean=0.2711864, MSE=0.1976444 
##   left son=2752 (45 obs) right son=2753 (14 obs)
##   Primary splits:
##       description_length < 3752.5   to the left,  improve=0.21744420, (0 missing)
##       reward_length      < 13829    to the left,  improve=0.05717890, (0 missing)
##       category           splits as  L-----------R--, improve=0.03790144, (0 missing)
##       goal               < 5527.5   to the left,  improve=0.03768334, (0 missing)
##       social_media_count splits as  LRL-, improve=0.01163021, (0 missing)
## 
## Node number 1377: 252 observations,    complexity param=0.0001496983
##   mean=0.4404762, MSE=0.2464569 
##   left son=2754 (152 obs) right son=2755 (100 obs)
##   Primary splits:
##       goal               < 7250     to the right, improve=0.012902760, (0 missing)
##       usa                < 0.5      to the left,  improve=0.010403120, (0 missing)
##       reward_length      < 18707    to the right, improve=0.010268630, (0 missing)
##       description_length < 1030.5   to the right, improve=0.008691366, (0 missing)
##       mo_launched        splits as  -RRRRRLR-LL-, improve=0.005768118, (0 missing)
##   Surrogate splits:
##       description_length < 883.5    to the right, agree=0.623, adj=0.05, (0 split)
##       mo_launched        splits as  -LLLLLLL-LR-, agree=0.615, adj=0.03, (0 split)
##       campaign_duration  < 60.02    to the left,  agree=0.611, adj=0.02, (0 split)
##       reward_length      < 16289.5  to the left,  agree=0.611, adj=0.02, (0 split)
## 
## Node number 1378: 16 observations
##   mean=0.25, MSE=0.1875 
## 
## Node number 1379: 48 observations,    complexity param=0.0001308142
##   mean=0.7083333, MSE=0.2065972 
##   left son=2758 (15 obs) right son=2759 (33 obs)
##   Primary splits:
##       mo_launched        splits as  RRRRRRL-LRRR, improve=0.12849500, (0 missing)
##       campaign_duration  < 31.08    to the left,  improve=0.11018930, (0 missing)
##       description_length < 3360     to the left,  improve=0.07030129, (0 missing)
##       reward_length      < 21954    to the right, improve=0.04537815, (0 missing)
##       goal               < 11500    to the right, improve=0.01868261, (0 missing)
##   Surrogate splits:
##       goal               < 4900     to the left,  agree=0.729, adj=0.133, (0 split)
##       description_length < 1145     to the left,  agree=0.708, adj=0.067, (0 split)
##       reward_length      < 37740    to the right, agree=0.708, adj=0.067, (0 split)
## 
## Node number 1380: 22 observations,    complexity param=0.0001041603
##   mean=0.4090909, MSE=0.2417355 
##   left son=2760 (8 obs) right son=2761 (14 obs)
##   Primary splits:
##       mo_launched       splits as  LLLRRRRLR--L, improve=0.190781400, (0 missing)
##       reward_length     < 15358    to the left,  improve=0.061436190, (0 missing)
##       goal              < 10362.5  to the left,  improve=0.050875050, (0 missing)
##       campaign_duration < 16.96    to the right, improve=0.050875050, (0 missing)
##       category          splits as  R-----------L--, improve=0.008547009, (0 missing)
##   Surrogate splits:
##       reward_length     < 11859    to the left,  agree=0.727, adj=0.250, (0 split)
##       campaign_duration < 22.155   to the right, agree=0.682, adj=0.125, (0 split)
##       video_status      < 0.5      to the left,  agree=0.682, adj=0.125, (0 split)
## 
## Node number 1381: 25 observations,    complexity param=0.0001131831
##   mean=0.72, MSE=0.2016 
##   left son=2762 (16 obs) right son=2763 (9 obs)
##   Primary splits:
##       category           splits as  L-----------R--, improve=0.21875000, (0 missing)
##       campaign_duration  < 20.81    to the left,  improve=0.16005290, (0 missing)
##       mo_launched        splits as  RLRRLLLRR--L, improve=0.10714290, (0 missing)
##       reward_length      < 13438    to the left,  improve=0.04761905, (0 missing)
##       description_length < 2548.5   to the left,  improve=0.04257999, (0 missing)
##   Surrogate splits:
##       campaign_duration < 21.85    to the left,  agree=0.80, adj=0.444, (0 split)
##       mo_launched       splits as  LLLRLLLLL--L, agree=0.68, adj=0.111, (0 split)
## 
## Node number 1384: 21 observations
##   mean=0.2380952, MSE=0.1814059 
## 
## Node number 1385: 239 observations,    complexity param=0.0001362407
##   mean=0.5481172, MSE=0.2476847 
##   left son=2770 (178 obs) right son=2771 (61 obs)
##   Primary splits:
##       reward_length      < 22066.5  to the left,  improve=0.021279040, (0 missing)
##       campaign_duration  < 50.74    to the right, improve=0.017246380, (0 missing)
##       mo_launched        splits as  --LRLR-L-RLL, improve=0.016021190, (0 missing)
##       description_length < 4778.5   to the right, improve=0.011633220, (0 missing)
##       goal               < 7635     to the right, improve=0.006013647, (0 missing)
##   Surrogate splits:
##       description_length < 13451    to the left,  agree=0.749, adj=0.016, (0 split)
## 
## Node number 1386: 14 observations
##   mean=0.5, MSE=0.25 
## 
## Node number 1387: 22 observations
##   mean=0.9090909, MSE=0.08264463 
## 
## Node number 1388: 59 observations,    complexity param=0.0002238739
##   mean=0.5762712, MSE=0.2441827 
##   left son=2776 (16 obs) right son=2777 (43 obs)
##   Primary splits:
##       description_length < 9392.5   to the right, improve=0.23031630, (0 missing)
##       campaign_duration  < 30.765   to the right, improve=0.06525490, (0 missing)
##       reward_length      < 12384.5  to the left,  improve=0.04243316, (0 missing)
##       mo_launched        splits as  LL----L-R---, improve=0.03215083, (0 missing)
##       social_media_count splits as  RRL-,         improve=0.01202650, (0 missing)
##   Surrogate splits:
##       reward_length < 11937.5  to the left,  agree=0.746, adj=0.063, (0 split)
## 
## Node number 1389: 25 observations
##   mean=0.88, MSE=0.1056 
## 
## Node number 1392: 177 observations,    complexity param=0.0001875995
##   mean=0.4915254, MSE=0.2499282 
##   left son=2784 (156 obs) right son=2785 (21 obs)
##   Primary splits:
##       campaign_duration  < 29.945   to the right, improve=0.03937554, (0 missing)
##       mo_launched        splits as  LLLLRRLLRLLL, improve=0.03299017, (0 missing)
##       usa                < 0.5      to the left,  improve=0.03179222, (0 missing)
##       social_media_count splits as  LRL-,         improve=0.02812633, (0 missing)
##       description_length < 4106.5   to the left,  improve=0.02043423, (0 missing)
## 
## Node number 1393: 11 observations
##   mean=0.9090909, MSE=0.08264463 
## 
## Node number 1396: 60 observations,    complexity param=0.0001332611
##   mean=0.5, MSE=0.25 
##   left son=2792 (8 obs) right son=2793 (52 obs)
##   Primary splits:
##       category           splits as  --------R----L-, improve=0.08653846, (0 missing)
##       social_media_count splits as  LRR-, improve=0.08019640, (0 missing)
##       goal               < 7250     to the right, improve=0.07239819, (0 missing)
##       description_length < 2996.5   to the right, improve=0.07200000, (0 missing)
##       mo_launched        splits as  -LL--R-R-R--, improve=0.05982906, (0 missing)
## 
## Node number 1397: 64 observations,    complexity param=0.0001768515
##   mean=0.78125, MSE=0.1708984 
##   left son=2794 (10 obs) right son=2795 (54 obs)
##   Primary splits:
##       reward_length      < 12184    to the left,  improve=0.15750260, (0 missing)
##       description_length < 5005.5   to the left,  improve=0.06434137, (0 missing)
##       campaign_duration  < 44.98    to the right, improve=0.05534503, (0 missing)
##       mo_launched        splits as  -RR--L-R-L--, improve=0.03167149, (0 missing)
##       goal               < 5750     to the right, improve=0.01257143, (0 missing)
##   Surrogate splits:
##       description_length < 1847.5   to the left,  agree=0.859, adj=0.1, (0 split)
## 
## Node number 1400: 12 observations
##   mean=0.25, MSE=0.1875 
## 
## Node number 1401: 12 observations
##   mean=0.75, MSE=0.1875 
## 
## Node number 1404: 23 observations,    complexity param=0.0001518884
##   mean=0.5652174, MSE=0.2457467 
##   left son=2808 (7 obs) right son=2809 (16 obs)
##   Primary splits:
##       description_length < 4059.5   to the right, improve=0.31758240, (0 missing)
##       reward_length      < 20421    to the left,  improve=0.22017750, (0 missing)
##       mo_launched        splits as  -R--LRLRR-L-, improve=0.08544379, (0 missing)
##       video_status       < 0.5      to the right, improve=0.03956044, (0 missing)
##       goal               < 6250     to the right, improve=0.03956044, (0 missing)
## 
## Node number 1405: 10 observations
##   mean=1, MSE=0 
## 
## Node number 1418: 12 observations
##   mean=0, MSE=0 
## 
## Node number 1419: 25 observations
##   mean=0.4, MSE=0.24 
## 
## Node number 1426: 58 observations,    complexity param=0.0001089235
##   mean=0.1724138, MSE=0.1426873 
##   left son=2852 (45 obs) right son=2853 (13 obs)
##   Primary splits:
##       description_length < 9294     to the left,  improve=0.09116809, (0 missing)
##       campaign_duration  < 59.52    to the left,  improve=0.09116809, (0 missing)
##       reward_length      < 15698    to the left,  improve=0.04603744, (0 missing)
##       mo_launched        splits as  -R-R--RL---L, improve=0.02845118, (0 missing)
##       social_media_count splits as  LRL-,         improve=0.02376736, (0 missing)
## 
## Node number 1427: 68 observations
##   mean=0.3970588, MSE=0.2394031 
## 
## Node number 1430: 11 observations
##   mean=0.4545455, MSE=0.2479339 
## 
## Node number 1431: 9 observations
##   mean=1, MSE=0 
## 
## Node number 1474: 139 observations
##   mean=0.1726619, MSE=0.1428497 
## 
## Node number 1475: 63 observations,    complexity param=0.0002205681
##   mean=0.3809524, MSE=0.2358277 
##   left son=2950 (28 obs) right son=2951 (35 obs)
##   Primary splits:
##       goal               < 25500    to the right, improve=0.19230770, (0 missing)
##       campaign_duration  < 42.48    to the right, improve=0.13611850, (0 missing)
##       description_length < 1547     to the left,  improve=0.08597586, (0 missing)
##       social_media_count splits as  LRLR, improve=0.06733228, (0 missing)
##       category           splits as  ------L---R----, improve=0.04832776, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 30.34    to the right, agree=0.619, adj=0.143, (0 split)
##       mo_launched        splits as  --R--RL-R---, agree=0.603, adj=0.107, (0 split)
##       description_length < 1823     to the right, agree=0.603, adj=0.107, (0 split)
##       reward_length      < 13864    to the right, agree=0.603, adj=0.107, (0 split)
##       category           splits as  ------L---R----, agree=0.587, adj=0.071, (0 split)
## 
## Node number 1492: 13 observations
##   mean=0.07692308, MSE=0.07100592 
## 
## Node number 1493: 28 observations
##   mean=0.5, MSE=0.25 
## 
## Node number 1496: 410 observations,    complexity param=0.0002304778
##   mean=0.4219512, MSE=0.2439084 
##   left son=2992 (230 obs) right son=2993 (180 obs)
##   Primary splits:
##       mo_launched        splits as  RLRLLRLRLLRL, improve=0.022427220, (0 missing)
##       reward_length      < 5975     to the left,  improve=0.014284610, (0 missing)
##       category           splits as  ------R---L----, improve=0.010576740, (0 missing)
##       description_length < 1157.5   to the left,  improve=0.009986796, (0 missing)
##       campaign_duration  < 24.795   to the right, improve=0.008419515, (0 missing)
##   Surrogate splits:
##       reward_length      < 9143.5   to the left,  agree=0.583, adj=0.050, (0 split)
##       category           splits as  ------R---L----, agree=0.573, adj=0.028, (0 split)
##       description_length < 209      to the right, agree=0.571, adj=0.022, (0 split)
## 
## Node number 1497: 16 observations
##   mean=0.8125, MSE=0.1523438 
## 
## Node number 1498: 249 observations,    complexity param=0.0002145022
##   mean=0.4738956, MSE=0.2493186 
##   left son=2996 (119 obs) right son=2997 (130 obs)
##   Primary splits:
##       mo_launched        splits as  LRLLRRLLRRRL, improve=0.03365697, (0 missing)
##       campaign_duration  < 43.795   to the right, improve=0.02914475, (0 missing)
##       goal               < 5050     to the right, improve=0.02654052, (0 missing)
##       reward_length      < 5497     to the left,  improve=0.01875918, (0 missing)
##       description_length < 365      to the left,  improve=0.01181307, (0 missing)
##   Surrogate splits:
##       description_length < 828.5    to the right, agree=0.574, adj=0.109, (0 split)
##       goal               < 7100     to the right, agree=0.570, adj=0.101, (0 split)
##       reward_length      < 7677     to the left,  agree=0.570, adj=0.101, (0 split)
##       campaign_duration  < 40.01    to the right, agree=0.566, adj=0.092, (0 split)
##       social_media_count splits as  RRLR,         agree=0.538, adj=0.034, (0 split)
## 
## Node number 1499: 638 observations,    complexity param=0.0002922717
##   mean=0.6081505, MSE=0.2383035 
##   left son=2998 (611 obs) right son=2999 (27 obs)
##   Primary splits:
##       category          splits as  -RR-RRLR--L---R, improve=0.018725480, (0 missing)
##       reward_length     < 7442     to the left,  improve=0.011985890, (0 missing)
##       mo_launched       splits as  RRRLRLLRRLRL, improve=0.009515835, (0 missing)
##       campaign_duration < 65.51    to the left,  improve=0.004625689, (0 missing)
##       usa               < 0.5      to the left,  improve=0.004377515, (0 missing)
## 
## Node number 1500: 33 observations,    complexity param=0.0001618301
##   mean=0.3636364, MSE=0.231405 
##   left son=3000 (25 obs) right son=3001 (8 obs)
##   Primary splits:
##       campaign_duration  < 29.98    to the right, improve=0.20642860, (0 missing)
##       description_length < 1022     to the left,  improve=0.14880950, (0 missing)
##       reward_length      < 14768.5  to the left,  improve=0.05968915, (0 missing)
##       goal               < 10750    to the right, improve=0.05031056, (0 missing)
##       social_media_count splits as  RLLL,         improve=0.02692308, (0 missing)
##   Surrogate splits:
##       reward_length < 14768.5  to the left,  agree=0.788, adj=0.125, (0 split)
## 
## Node number 1501: 170 observations,    complexity param=0.0001643205
##   mean=0.6294118, MSE=0.2332526 
##   left son=3002 (114 obs) right son=3003 (56 obs)
##   Primary splits:
##       goal               < 5550     to the right, improve=0.04036580, (0 missing)
##       campaign_duration  < 29.78    to the right, improve=0.02270914, (0 missing)
##       description_length < 1085     to the right, improve=0.02183557, (0 missing)
##       reward_length      < 10489.5  to the right, improve=0.01696285, (0 missing)
##       mo_launched        splits as  R-L-LLRLLLLR, improve=0.01661651, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 20.02    to the right, agree=0.682, adj=0.036, (0 split)
##       description_length < 1115     to the left,  agree=0.682, adj=0.036, (0 split)
## 
## Node number 1502: 55 observations,    complexity param=0.0001866282
##   mean=0.5636364, MSE=0.2459504 
##   left son=3004 (7 obs) right son=3005 (48 obs)
##   Primary splits:
##       description_length < 1793     to the right, improve=0.10498270, (0 missing)
##       mo_launched        splits as  RLLLRLLLLLLR, improve=0.10222520, (0 missing)
##       reward_length      < 11222.5  to the right, improve=0.08069316, (0 missing)
##       campaign_duration  < 24.935   to the left,  improve=0.06807653, (0 missing)
##       goal               < 15597.09 to the right, improve=0.04033243, (0 missing)
## 
## Node number 1503: 328 observations,    complexity param=0.0001804917
##   mean=0.7530488, MSE=0.1859663 
##   left son=3006 (166 obs) right son=3007 (162 obs)
##   Primary splits:
##       mo_launched        splits as  RRRLLRLLLRRL, improve=0.028823480, (0 missing)
##       reward_length      < 11022    to the right, improve=0.018834180, (0 missing)
##       category           splits as  --R-LRL---R---R, improve=0.013366900, (0 missing)
##       description_length < 1873.5   to the right, improve=0.008041364, (0 missing)
##       campaign_duration  < 29.24    to the right, improve=0.006431104, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 30.01    to the left,  agree=0.616, adj=0.222, (0 split)
##       description_length < 1564.5   to the right, agree=0.567, adj=0.123, (0 split)
##       category           splits as  --R-LRL---R---L, agree=0.555, adj=0.099, (0 split)
##       goal               < 5075     to the left,  agree=0.537, adj=0.062, (0 split)
##       reward_length      < 17291.5  to the right, agree=0.530, adj=0.049, (0 split)
## 
## Node number 1504: 291 observations,    complexity param=0.0002572943
##   mean=0.3161512, MSE=0.2161996 
##   left son=3008 (62 obs) right son=3009 (229 obs)
##   Primary splits:
##       category           splits as  ------R---L----, improve=0.03661359, (0 missing)
##       reward_length      < 10754.5  to the left,  improve=0.03138836, (0 missing)
##       mo_launched        splits as  LLLRRLLLLLRL, improve=0.02278876, (0 missing)
##       goal               < 48500    to the right, improve=0.01976507, (0 missing)
##       description_length < 2413     to the left,  improve=0.01927189, (0 missing)
##   Surrogate splits:
##       social_media_count splits as  RRRL,         agree=0.797, adj=0.048, (0 split)
##       goal               < 26055    to the left,  agree=0.794, adj=0.032, (0 split)
##       description_length < 1935.5   to the left,  agree=0.794, adj=0.032, (0 split)
## 
## Node number 1505: 775 observations,    complexity param=0.0004261947
##   mean=0.5045161, MSE=0.2499796 
##   left son=3010 (255 obs) right son=3011 (520 obs)
##   Primary splits:
##       category           splits as  ------R---L----, improve=0.02142885, (0 missing)
##       mo_launched        splits as  LRRLLLLRRRRR, improve=0.01505710, (0 missing)
##       campaign_duration  < 45.025   to the right, improve=0.01446698, (0 missing)
##       description_length < 3632     to the left,  improve=0.01270283, (0 missing)
##       goal               < 15660    to the right, improve=0.01072365, (0 missing)
##   Surrogate splits:
##       social_media_count splits as  RRLL,         agree=0.702, adj=0.094, (0 split)
##       campaign_duration  < 71.785   to the right, agree=0.674, adj=0.008, (0 split)
##       description_length < 1944.5   to the left,  agree=0.674, adj=0.008, (0 split)
##       reward_length      < 4876     to the left,  agree=0.674, adj=0.008, (0 split)
## 
## Node number 1506: 108 observations,    complexity param=0.0002251488
##   mean=0.6018519, MSE=0.2396262 
##   left son=3012 (51 obs) right son=3013 (57 obs)
##   Primary splits:
##       goal               < 24700    to the right, improve=0.08499144, (0 missing)
##       campaign_duration  < 31.015   to the right, improve=0.06433536, (0 missing)
##       category           splits as  ------L---R----, improve=0.04513132, (0 missing)
##       mo_launched        splits as  ----L-RR-R-L, improve=0.01822804, (0 missing)
##       description_length < 5164.5   to the right, improve=0.01718068, (0 missing)
##   Surrogate splits:
##       category           splits as  ------L---R----, agree=0.639, adj=0.235, (0 split)
##       social_media_count splits as  LRRR, agree=0.602, adj=0.157, (0 split)
##       reward_length      < 25879    to the right, agree=0.593, adj=0.137, (0 split)
##       description_length < 4957     to the right, agree=0.556, adj=0.059, (0 split)
##       mo_launched        splits as  ----L-RR-R-R, agree=0.546, adj=0.039, (0 split)
## 
## Node number 1507: 115 observations,    complexity param=0.0001267221
##   mean=0.8, MSE=0.16 
##   left son=3014 (9 obs) right son=3015 (106 obs)
##   Primary splits:
##       campaign_duration  < 25.955   to the left,  improve=0.06708595, (0 missing)
##       description_length < 4823     to the right, improve=0.05448718, (0 missing)
##       mo_launched        splits as  LRLL-L--L-L-, improve=0.05263158, (0 missing)
##       reward_length      < 33167.5  to the left,  improve=0.03750000, (0 missing)
##       goal               < 42500    to the right, improve=0.03418285, (0 missing)
## 
## Node number 1508: 88 observations,    complexity param=0.0001696791
##   mean=0.4545455, MSE=0.2479339 
##   left son=3016 (36 obs) right son=3017 (52 obs)
##   Primary splits:
##       campaign_duration  < 39.475   to the right, improve=0.06198362, (0 missing)
##       description_length < 5747     to the right, improve=0.06100525, (0 missing)
##       mo_launched        splits as  RRLRLRLRRRLL, improve=0.05555556, (0 missing)
##       goal               < 20500    to the right, improve=0.05239892, (0 missing)
##       reward_length      < 7789.5   to the right, improve=0.02351558, (0 missing)
##   Surrogate splits:
##       goal          < 25275    to the right, agree=0.648, adj=0.139, (0 split)
##       mo_launched   splits as  LLRRRRRRRRRL, agree=0.636, adj=0.111, (0 split)
##       reward_length < 26256.5  to the right, agree=0.625, adj=0.083, (0 split)
##       video_status  < 0.5      to the left,  agree=0.602, adj=0.028, (0 split)
## 
## Node number 1509: 20 observations
##   mean=0.9, MSE=0.09 
## 
## Node number 1510: 45 observations,    complexity param=0.0001348584
##   mean=0.4666667, MSE=0.2488889 
##   left son=3020 (33 obs) right son=3021 (12 obs)
##   Primary splits:
##       mo_launched        splits as  RRLRLLLLLRL-, improve=0.11728900, (0 missing)
##       social_media_count splits as  RRL-,         improve=0.08163265, (0 missing)
##       goal               < 31500    to the right, improve=0.07760473, (0 missing)
##       reward_length      < 6954     to the right, improve=0.07760473, (0 missing)
##       campaign_duration  < 58.41    to the right, improve=0.07760473, (0 missing)
##   Surrogate splits:
##       reward_length < 5022.5   to the right, agree=0.778, adj=0.167, (0 split)
## 
## Node number 1511: 532 observations,    complexity param=0.0002061482
##   mean=0.7462406, MSE=0.1893656 
##   left son=3022 (377 obs) right son=3023 (155 obs)
##   Primary splits:
##       reward_length      < 18276    to the left,  improve=0.016064330, (0 missing)
##       goal               < 25465    to the right, improve=0.015056380, (0 missing)
##       mo_launched        splits as  RLRLLLLLLRRR, improve=0.010755650, (0 missing)
##       social_media_count splits as  RRLR,         improve=0.005540744, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.004411588, (0 missing)
##   Surrogate splits:
##       usa                < 0.5      to the right, agree=0.718, adj=0.032, (0 split)
##       description_length < 14256    to the left,  agree=0.716, adj=0.026, (0 split)
##       social_media_count splits as  LLLR,         agree=0.714, adj=0.019, (0 split)
##       goal               < 52898    to the left,  agree=0.712, adj=0.013, (0 split)
## 
## Node number 1512: 8 observations
##   mean=0.25, MSE=0.1875 
## 
## Node number 1513: 734 observations,    complexity param=0.0001480169
##   mean=0.6307902, MSE=0.2328939 
##   left son=3026 (15 obs) right son=3027 (719 obs)
##   Primary splits:
##       usa                < 0.5      to the left,  improve=0.004771324, (0 missing)
##       mo_launched        splits as  RRRRLRLRLLLR, improve=0.004447546, (0 missing)
##       reward_length      < 5150     to the right, improve=0.004430938, (0 missing)
##       campaign_duration  < 57.095   to the right, improve=0.004262503, (0 missing)
##       description_length < 1920.5   to the right, improve=0.003590829, (0 missing)
## 
## Node number 1514: 18 observations
##   mean=0.4444444, MSE=0.2469136 
## 
## Node number 1515: 272 observations,    complexity param=0.0001495628
##   mean=0.7830882, MSE=0.1698611 
##   left son=3030 (88 obs) right son=3031 (184 obs)
##   Primary splits:
##       goal               < 9362.5   to the right, improve=0.02275896, (0 missing)
##       mo_launched        splits as  RRLRLRLLRLRR, improve=0.02188850, (0 missing)
##       description_length < 9082.5   to the right, improve=0.01842465, (0 missing)
##       reward_length      < 11254    to the right, improve=0.01714413, (0 missing)
##       campaign_duration  < 44.92    to the right, improve=0.01191737, (0 missing)
##   Surrogate splits:
##       campaign_duration < 90.5     to the right, agree=0.684, adj=0.023, (0 split)
##       reward_length     < 5088     to the left,  agree=0.680, adj=0.011, (0 split)
## 
## Node number 1516: 28 observations,    complexity param=0.0002065429
##   mean=0.3571429, MSE=0.2295918 
##   left son=3032 (16 obs) right son=3033 (12 obs)
##   Primary splits:
##       mo_launched        splits as  RR-LLLRLLLRL, improve=0.31296300, (0 missing)
##       campaign_duration  < 30.02    to the right, improve=0.18518520, (0 missing)
##       description_length < 2351     to the right, improve=0.06666667, (0 missing)
##       goal               < 5200     to the left,  improve=0.05975309, (0 missing)
##       reward_length      < 6683.5   to the right, improve=0.04938272, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 29.98    to the right, agree=0.750, adj=0.417, (0 split)
##       description_length < 2344.5   to the right, agree=0.714, adj=0.333, (0 split)
##       social_media_count splits as  LR-L,         agree=0.607, adj=0.083, (0 split)
##       goal               < 5450     to the right, agree=0.607, adj=0.083, (0 split)
##       reward_length      < 9807.5   to the left,  agree=0.607, adj=0.083, (0 split)
## 
## Node number 1517: 80 observations,    complexity param=0.0002057874
##   mean=0.675, MSE=0.219375 
##   left son=3034 (36 obs) right son=3035 (44 obs)
##   Primary splits:
##       category           splits as  ------R---L----, improve=0.11421910, (0 missing)
##       description_length < 3030     to the right, improve=0.08565174, (0 missing)
##       reward_length      < 8799     to the right, improve=0.05404537, (0 missing)
##       campaign_duration  < 34.285   to the right, improve=0.04924705, (0 missing)
##       mo_launched        splits as  LRLRRRRRLRRR, improve=0.04565710, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  RRLRRRRLLLRL, agree=0.700, adj=0.333, (0 split)
##       social_media_count splits as  RLLL,         agree=0.638, adj=0.194, (0 split)
##       goal               < 9920     to the right, agree=0.638, adj=0.194, (0 split)
##       reward_length      < 8927     to the right, agree=0.625, adj=0.167, (0 split)
##       description_length < 3418.5   to the left,  agree=0.588, adj=0.083, (0 split)
## 
## Node number 1518: 1760 observations,    complexity param=0.0002802057
##   mean=0.7323864, MSE=0.1959966 
##   left son=3036 (1523 obs) right son=3037 (237 obs)
##   Primary splits:
##       campaign_duration < 22.305   to the right, improve=0.008432419, (0 missing)
##       usa               < 0.5      to the left,  improve=0.007915943, (0 missing)
##       reward_length     < 7332.5   to the left,  improve=0.005327203, (0 missing)
##       goal              < 9052     to the right, improve=0.005211132, (0 missing)
##       mo_launched       splits as  RRLRLRLRLLLL, improve=0.003658898, (0 missing)
##   Surrogate splits:
##       description_length < 1900.5   to the right, agree=0.866, adj=0.004, (0 split)
## 
## Node number 1519: 576 observations,    complexity param=0.0001390319
##   mean=0.8107639, MSE=0.1534258 
##   left son=3038 (244 obs) right son=3039 (332 obs)
##   Primary splits:
##       mo_launched        splits as  RLLLRLLRRRRR, improve=0.011253250, (0 missing)
##       description_length < 1942.5   to the left,  improve=0.008932045, (0 missing)
##       campaign_duration  < 39.185   to the left,  improve=0.008831530, (0 missing)
##       social_media_count splits as  RLLL,         improve=0.008326433, (0 missing)
##       reward_length      < 6406.5   to the left,  improve=0.006604719, (0 missing)
##   Surrogate splits:
##       reward_length      < 4855.5   to the left,  agree=0.585, adj=0.020, (0 split)
##       description_length < 10753.5  to the right, agree=0.582, adj=0.012, (0 split)
##       campaign_duration  < 39.9     to the right, agree=0.578, adj=0.004, (0 split)
## 
## Node number 1544: 68 observations
##   mean=0.01470588, MSE=0.01448962 
## 
## Node number 1545: 10 observations
##   mean=0.5, MSE=0.25 
## 
## Node number 1546: 223 observations,    complexity param=0.000116584
##   mean=0.1838565, MSE=0.1500533 
##   left son=3092 (19 obs) right son=3093 (204 obs)
##   Primary splits:
##       description_length < 474      to the left,  improve=0.02098147, (0 missing)
##       campaign_duration  < 27.5     to the right, improve=0.02043032, (0 missing)
##       category           splits as  --------R---LR-, improve=0.01131731, (0 missing)
##       goal               < 1945     to the right, improve=0.01061640, (0 missing)
##       mo_launched        splits as  RR-RL-L--LLR, improve=0.00802178, (0 missing)
## 
## Node number 1547: 111 observations,    complexity param=0.000188144
##   mean=0.3063063, MSE=0.2124828 
##   left son=3094 (103 obs) right son=3095 (8 obs)
##   Primary splits:
##       campaign_duration  < 31.98    to the right, improve=0.11821860, (0 missing)
##       goal               < 2300     to the right, improve=0.02095748, (0 missing)
##       mo_launched        splits as  RR-LR-R--RRR, improve=0.01983261, (0 missing)
##       description_length < 1354.5   to the right, improve=0.01597148, (0 missing)
##       category           splits as  --------R---RL-, improve=0.01201586, (0 missing)
## 
## Node number 1548: 70 observations
##   mean=0.1857143, MSE=0.1512245 
## 
## Node number 1549: 120 observations,    complexity param=0.0001665416
##   mean=0.3416667, MSE=0.2249306 
##   left son=3098 (15 obs) right son=3099 (105 obs)
##   Primary splits:
##       reward_length      < 3420.5   to the right, improve=0.04803070, (0 missing)
##       description_length < 1194.5   to the right, improve=0.03282318, (0 missing)
##       mo_launched        splits as  --R--L-RR---, improve=0.02830027, (0 missing)
##       campaign_duration  < 29.985   to the right, improve=0.01966854, (0 missing)
##       goal               < 975      to the right, improve=0.01013220, (0 missing)
## 
## Node number 1550: 17 observations
##   mean=0.3529412, MSE=0.2283737 
## 
## Node number 1551: 9 observations
##   mean=0.8888889, MSE=0.09876543 
## 
## Node number 1554: 23 observations
##   mean=0.1304348, MSE=0.1134216 
## 
## Node number 1555: 73 observations,    complexity param=0.0001454195
##   mean=0.4246575, MSE=0.2443235 
##   left son=3110 (63 obs) right son=3111 (10 obs)
##   Primary splits:
##       campaign_duration  < 31.635   to the right, improve=0.09152708, (0 missing)
##       description_length < 5678     to the right, improve=0.04523366, (0 missing)
##       mo_launched        splits as  LRLLRRRRLLRR, improve=0.03525081, (0 missing)
##       reward_length      < 3850.5   to the right, improve=0.03447244, (0 missing)
##       goal               < 2225     to the right, improve=0.02744665, (0 missing)
## 
## Node number 1556: 16 observations
##   mean=0.0625, MSE=0.05859375 
## 
## Node number 1557: 7 observations
##   mean=0.5714286, MSE=0.244898 
## 
## Node number 1558: 20 observations
##   mean=0.55, MSE=0.2475 
## 
## Node number 1559: 8 observations
##   mean=1, MSE=0 
## 
## Node number 1564: 27 observations,    complexity param=0.0001183039
##   mean=0.2222222, MSE=0.1728395 
##   left son=3128 (20 obs) right son=3129 (7 obs)
##   Primary splits:
##       goal               < 1425     to the left,  improve=0.24693880, (0 missing)
##       reward_length      < 3535.5   to the left,  improve=0.03924647, (0 missing)
##       campaign_duration  < 30.97    to the right, improve=0.02302632, (0 missing)
##       mo_launched        splits as  -R--RL----LL, improve=0.01428571, (0 missing)
##       description_length < 2235.5   to the left,  improve=0.01275510, (0 missing)
##   Surrogate splits:
##       description_length < 4394     to the left,  agree=0.815, adj=0.286, (0 split)
## 
## Node number 1565: 46 observations,    complexity param=0.0001389883
##   mean=0.5869565, MSE=0.2424386 
##   left son=3130 (16 obs) right son=3131 (30 obs)
##   Primary splits:
##       video_status       < 0.5      to the left,  improve=0.09883041, (0 missing)
##       campaign_duration  < 22.515   to the right, improve=0.07204781, (0 missing)
##       description_length < 3186.5   to the right, improve=0.04913905, (0 missing)
##       reward_length      < 3856.5   to the left,  improve=0.02925717, (0 missing)
##       social_media_count splits as  LRR-,         improve=0.02308403, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  R-LR--RRRR--, agree=0.761, adj=0.313, (0 split)
##       description_length < 3589.5   to the right, agree=0.761, adj=0.313, (0 split)
## 
## Node number 1566: 26 observations,    complexity param=0.0001713982
##   mean=0.5384615, MSE=0.2485207 
##   left son=3132 (10 obs) right son=3133 (16 obs)
##   Primary splits:
##       goal               < 1350     to the right, improve=0.28809520, (0 missing)
##       description_length < 2905.5   to the left,  improve=0.21428570, (0 missing)
##       reward_length      < 2648     to the left,  improve=0.10519480, (0 missing)
##       category           splits as  --------R---LR-, improve=0.08002646, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.04821429, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  RL---RLR-R--, agree=0.769, adj=0.4, (0 split)
##       category           splits as  --------L---RR-, agree=0.654, adj=0.1, (0 split)
##       description_length < 2021.5   to the left,  agree=0.654, adj=0.1, (0 split)
##       reward_length      < 2889.5   to the right, agree=0.654, adj=0.1, (0 split)
## 
## Node number 1567: 20 observations
##   mean=0.9, MSE=0.09 
## 
## Node number 1570: 13 observations
##   mean=0.1538462, MSE=0.1301775 
## 
## Node number 1571: 12 observations
##   mean=0.6666667, MSE=0.2222222 
## 
## Node number 1572: 49 observations
##   mean=0.06122449, MSE=0.05747605 
## 
## Node number 1573: 9 observations
##   mean=0.5555556, MSE=0.2469136 
## 
## Node number 1574: 419 observations,    complexity param=0.0001659847
##   mean=0.3460621, MSE=0.2263031 
##   left son=3148 (326 obs) right son=3149 (93 obs)
##   Primary splits:
##       mo_launched        splits as  RLLLRRLLLLLL, improve=0.017051430, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.013060870, (0 missing)
##       social_media_count splits as  RRLR,         improve=0.011933000, (0 missing)
##       reward_length      < 3017.5   to the left,  improve=0.009347441, (0 missing)
##       campaign_duration  < 29.995   to the left,  improve=0.005966586, (0 missing)
##   Surrogate splits:
##       campaign_duration < 89.98    to the left,  agree=0.78, adj=0.011, (0 split)
## 
## Node number 1575: 12 observations
##   mean=0.75, MSE=0.1875 
## 
## Node number 1576: 54 observations
##   mean=0.1111111, MSE=0.09876543 
## 
## Node number 1577: 23 observations,    complexity param=0.0001277589
##   mean=0.4347826, MSE=0.2457467 
##   left son=3154 (13 obs) right son=3155 (10 obs)
##   Primary splits:
##       goal               < 1050     to the right, improve=0.220177500, (0 missing)
##       description_length < 325.5    to the left,  improve=0.074102560, (0 missing)
##       mo_launched        splits as  -----R---LLR, improve=0.038156290, (0 missing)
##       reward_length      < 3128     to the right, improve=0.026923080, (0 missing)
##       campaign_duration  < 31.16    to the left,  improve=0.009230769, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  -----R---LLR, agree=0.696, adj=0.3, (0 split)
##       reward_length      < 3624.5   to the left,  agree=0.696, adj=0.3, (0 split)
##       campaign_duration  < 50.56    to the left,  agree=0.652, adj=0.2, (0 split)
##       description_length < 185.5    to the right, agree=0.652, adj=0.2, (0 split)
## 
## Node number 1578: 56 observations,    complexity param=0.0001145763
##   mean=0.2857143, MSE=0.2040816 
##   left son=3156 (16 obs) right son=3157 (40 obs)
##   Primary splits:
##       reward_length      < 1985     to the left,  improve=0.097656250, (0 missing)
##       description_length < 480      to the left,  improve=0.060000000, (0 missing)
##       campaign_duration  < 45.3     to the left,  improve=0.045796060, (0 missing)
##       category           splits as  R---L-----L----, improve=0.022916670, (0 missing)
##       goal               < 1175     to the left,  improve=0.008258065, (0 missing)
##   Surrogate splits:
##       category splits as  R---L-----R----, agree=0.732, adj=0.062, (0 split)
## 
## Node number 1579: 54 observations,    complexity param=0.0001126356
##   mean=0.5, MSE=0.25 
##   left son=3158 (42 obs) right son=3159 (12 obs)
##   Primary splits:
##       campaign_duration  < 37.77    to the left,  improve=0.07142857, (0 missing)
##       reward_length      < 3127.5   to the left,  improve=0.03974563, (0 missing)
##       social_media_count splits as  LRL-,         improve=0.03607504, (0 missing)
##       description_length < 484.5    to the right, improve=0.03607504, (0 missing)
##       mo_launched        splits as  R---L-L-LLR-, improve=0.02857143, (0 missing)
## 
## Node number 1580: 65 observations
##   mean=0.2769231, MSE=0.2002367 
## 
## Node number 1581: 253 observations,    complexity param=0.0002904717
##   mean=0.4980237, MSE=0.2499961 
##   left son=3162 (198 obs) right son=3163 (55 obs)
##   Primary splits:
##       reward_length      < 3439.5   to the left,  improve=0.04950006, (0 missing)
##       campaign_duration  < 49.02    to the right, improve=0.01859873, (0 missing)
##       description_length < 963.5    to the right, improve=0.01558030, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.01255423, (0 missing)
##       mo_launched        splits as  LR-RLLRL-L-R, improve=0.01137924, (0 missing)
##   Surrogate splits:
##       description_length < 1242.5   to the left,  agree=0.791, adj=0.036, (0 split)
## 
## Node number 1582: 35 observations,    complexity param=0.000114616
##   mean=0.6, MSE=0.24 
##   left son=3164 (26 obs) right son=3165 (9 obs)
##   Primary splits:
##       campaign_duration  < 20.9     to the left,  improve=0.12037040, (0 missing)
##       description_length < 1167     to the right, improve=0.10289120, (0 missing)
##       reward_length      < 3207.5   to the right, improve=0.06666667, (0 missing)
##       social_media_count splits as  LRRR,         improve=0.04558405, (0 missing)
##       goal               < 1550     to the right, improve=0.03490028, (0 missing)
##   Surrogate splits:
##       category splits as  L---R-----L----, agree=0.8, adj=0.222, (0 split)
## 
## Node number 1583: 23 observations
##   mean=0.9565217, MSE=0.0415879 
## 
## Node number 1584: 19 observations
##   mean=0.05263158, MSE=0.0498615 
## 
## Node number 1585: 7 observations
##   mean=0.5714286, MSE=0.244898 
## 
## Node number 1586: 92 observations,    complexity param=0.0001497767
##   mean=0.3369565, MSE=0.2234168 
##   left son=3172 (16 obs) right son=3173 (76 obs)
##   Primary splits:
##       description_length < 1354.5   to the left,  improve=0.07098027, (0 missing)
##       goal               < 2286.11  to the right, improve=0.04912367, (0 missing)
##       campaign_duration  < 45.52    to the left,  improve=0.04075445, (0 missing)
##       reward_length      < 2258.5   to the right, improve=0.03966155, (0 missing)
##       social_media_count splits as  LRRL,         improve=0.03757779, (0 missing)
##   Surrogate splits:
##       reward_length < 709.5    to the left,  agree=0.848, adj=0.125, (0 split)
## 
## Node number 1587: 179 observations,    complexity param=0.0001819475
##   mean=0.5139665, MSE=0.2498049 
##   left son=3174 (136 obs) right son=3175 (43 obs)
##   Primary splits:
##       campaign_duration  < 26.935   to the right, improve=0.04271539, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.02553878, (0 missing)
##       description_length < 1314     to the right, improve=0.02189166, (0 missing)
##       reward_length      < 2311     to the left,  improve=0.01492348, (0 missing)
##       mo_launched        splits as  L-LRLLL-L---, improve=0.01443219, (0 missing)
##   Surrogate splits:
##       goal               < 915      to the right, agree=0.771, adj=0.047, (0 split)
##       description_length < 2730.5   to the left,  agree=0.765, adj=0.023, (0 split)
## 
## Node number 1588: 16 observations
##   mean=0.25, MSE=0.1875 
## 
## Node number 1589: 7 observations
##   mean=0.8571429, MSE=0.122449 
## 
## Node number 1590: 16 observations
##   mean=0.5625, MSE=0.2460938 
## 
## Node number 1591: 14 observations
##   mean=1, MSE=0 
## 
## Node number 1592: 11 observations
##   mean=0.09090909, MSE=0.08264463 
## 
## Node number 1593: 45 observations,    complexity param=0.0001074379
##   mean=0.3777778, MSE=0.2350617 
##   left son=3186 (33 obs) right son=3187 (12 obs)
##   Primary splits:
##       mo_launched        splits as  L-RL--L-RLL-, improve=0.12910620, (0 missing)
##       reward_length      < 3135.5   to the right, improve=0.08876050, (0 missing)
##       campaign_duration  < 59.645   to the left,  improve=0.08666471, (0 missing)
##       category           splits as  R---R-----L----, improve=0.05938846, (0 missing)
##       description_length < 2832.5   to the right, improve=0.04324888, (0 missing)
##   Surrogate splits:
##       reward_length      < 4013.5   to the left,  agree=0.778, adj=0.167, (0 split)
##       social_media_count splits as  LLRL,         agree=0.756, adj=0.083, (0 split)
## 
## Node number 1594: 30 observations
##   mean=0.5333333, MSE=0.2488889 
## 
## Node number 1595: 14 observations
##   mean=0.8571429, MSE=0.122449 
## 
## Node number 1596: 177 observations,    complexity param=0.000197378
##   mean=0.4971751, MSE=0.249992 
##   left son=3192 (71 obs) right son=3193 (106 obs)
##   Primary splits:
##       reward_length      < 3353.5   to the right, improve=0.04596452, (0 missing)
##       description_length < 1545     to the right, improve=0.04175241, (0 missing)
##       goal               < 1650     to the right, improve=0.02004344, (0 missing)
##       social_media_count splits as  LRRL,         improve=0.01637242, (0 missing)
##       mo_launched        splits as  -L--RR-L--L-, improve=0.01417085, (0 missing)
##   Surrogate splits:
##       mo_launched splits as  -L--RR-R--R-, agree=0.627, adj=0.070, (0 split)
##       goal        < 1050     to the left,  agree=0.616, adj=0.042, (0 split)
## 
## Node number 1597: 104 observations,    complexity param=0.0001617725
##   mean=0.6634615, MSE=0.2232803 
##   left son=3194 (76 obs) right son=3195 (28 obs)
##   Primary splits:
##       campaign_duration  < 26.225   to the right, improve=0.06189698, (0 missing)
##       reward_length      < 3680     to the right, improve=0.05396238, (0 missing)
##       goal               < 1550     to the right, improve=0.02940213, (0 missing)
##       description_length < 1721.5   to the left,  improve=0.02760795, (0 missing)
##       category           splits as  R---R-----L----, improve=0.02438836, (0 missing)
##   Surrogate splits:
##       description_length < 1308     to the right, agree=0.75, adj=0.071, (0 split)
## 
## Node number 1598: 314 observations,    complexity param=0.0001336597
##   mean=0.6878981, MSE=0.2146943 
##   left son=3196 (11 obs) right son=3197 (303 obs)
##   Primary splits:
##       usa                < 0.5      to the left,  improve=0.017779560, (0 missing)
##       campaign_duration  < 29.97    to the right, improve=0.017405520, (0 missing)
##       description_length < 2129.5   to the left,  improve=0.014713540, (0 missing)
##       reward_length      < 3287.5   to the left,  improve=0.014702630, (0 missing)
##       mo_launched        splits as  L-RR--L-LR-L, improve=0.008568569, (0 missing)
## 
## Node number 1599: 13 observations
##   mean=1, MSE=0 
## 
## Node number 1604: 21 observations
##   mean=0.04761905, MSE=0.04535147 
## 
## Node number 1605: 29 observations
##   mean=0.4827586, MSE=0.2497027 
## 
## Node number 1606: 167 observations,    complexity param=0.0001555327
##   mean=0.491018, MSE=0.2499193 
##   left son=3212 (155 obs) right son=3213 (12 obs)
##   Primary splits:
##       reward_length     < 640      to the right, improve=0.03629966, (0 missing)
##       mo_launched       splits as  RRRRLRLLLRRL, improve=0.02764438, (0 missing)
##       category          splits as  L---L---L-R-RR-, improve=0.02620717, (0 missing)
##       goal              < 481      to the left,  improve=0.02308964, (0 missing)
##       campaign_duration < 27.385   to the left,  improve=0.02121964, (0 missing)
## 
## Node number 1607: 23 observations,    complexity param=0.0001928421
##   mean=0.7826087, MSE=0.1701323 
##   left son=3214 (8 obs) right son=3215 (15 obs)
##   Primary splits:
##       mo_launched        splits as  LRRRRLR-LRRL, improve=0.52083330, (0 missing)
##       campaign_duration  < 33.41    to the right, improve=0.07787037, (0 missing)
##       category           splits as  R---R---L-R-LR-, improve=0.05079365, (0 missing)
##       description_length < 796.5    to the left,  improve=0.04268078, (0 missing)
##       reward_length      < 1327     to the right, improve=0.03085470, (0 missing)
##   Surrogate splits:
##       category           splits as  R---R---L-R-LR-, agree=0.783, adj=0.375, (0 split)
##       description_length < 270      to the left,  agree=0.783, adj=0.375, (0 split)
##       reward_length      < 611.5    to the left,  agree=0.696, adj=0.125, (0 split)
## 
## Node number 1612: 18 observations
##   mean=0.1111111, MSE=0.09876543 
## 
## Node number 1613: 15 observations
##   mean=0.6666667, MSE=0.2222222 
## 
## Node number 1614: 160 observations,    complexity param=0.0001369433
##   mean=0.525, MSE=0.249375 
##   left son=3228 (147 obs) right son=3229 (13 obs)
##   Primary splits:
##       goal               < 798.5    to the left,  improve=0.03657627, (0 missing)
##       description_length < 882      to the left,  improve=0.03098067, (0 missing)
##       campaign_duration  < 60.035   to the left,  improve=0.02585411, (0 missing)
##       mo_launched        splits as  LLRRLLLRRRLL, improve=0.01990270, (0 missing)
##       social_media_count splits as  LRR-,         improve=0.01886377, (0 missing)
## 
## Node number 1615: 180 observations,    complexity param=0.000126411
##   mean=0.6444444, MSE=0.2291358 
##   left son=3230 (39 obs) right son=3231 (141 obs)
##   Primary splits:
##       mo_launched        splits as  RRLLRRRLRRRR, improve=0.029854960, (0 missing)
##       campaign_duration  < 34.635   to the right, improve=0.025087530, (0 missing)
##       reward_length      < 2395.5   to the right, improve=0.023050240, (0 missing)
##       description_length < 585.5    to the left,  improve=0.020461690, (0 missing)
##       category           splits as  R---R---L-R-RR-, improve=0.008229164, (0 missing)
##   Surrogate splits:
##       goal < 825      to the right, agree=0.789, adj=0.026, (0 split)
## 
## Node number 1620: 74 observations,    complexity param=0.0001534246
##   mean=0.4054054, MSE=0.2410519 
##   left son=3240 (15 obs) right son=3241 (59 obs)
##   Primary splits:
##       goal               < 316.5    to the left,  improve=0.07807225, (0 missing)
##       mo_launched        splits as  RRRLRLLLLRRL, improve=0.06980615, (0 missing)
##       campaign_duration  < 47.02    to the right, improve=0.04974877, (0 missing)
##       description_length < 1868     to the left,  improve=0.03142562, (0 missing)
##       reward_length      < 3035.5   to the left,  improve=0.02987659, (0 missing)
## 
## Node number 1621: 9 observations
##   mean=0.8888889, MSE=0.09876543 
## 
## Node number 1622: 57 observations,    complexity param=0.0001715895
##   mean=0.6315789, MSE=0.232687 
##   left son=3244 (7 obs) right son=3245 (50 obs)
##   Primary splits:
##       reward_length      < 1402     to the left,  improve=0.14370750, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.12458170, (0 missing)
##       mo_launched        splits as  LLLRRRLLLLLR, improve=0.09523810, (0 missing)
##       description_length < 2195.5   to the left,  improve=0.09381013, (0 missing)
##       campaign_duration  < 30.02    to the right, improve=0.01720238, (0 missing)
## 
## Node number 1623: 13 observations
##   mean=1, MSE=0 
## 
## Node number 1624: 24 observations,    complexity param=0.0001302997
##   mean=0.25, MSE=0.1875 
##   left son=3248 (11 obs) right son=3249 (13 obs)
##   Primary splits:
##       description_length < 1668     to the right, improve=0.28205130, (0 missing)
##       reward_length      < 1860     to the right, improve=0.18881120, (0 missing)
##       category           splits as  R---R---L-L----, improve=0.14814810, (0 missing)
##       goal               < 599.5    to the right, improve=0.06172840, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.04166667, (0 missing)
##   Surrogate splits:
##       reward_length     < 1860     to the right, agree=0.833, adj=0.636, (0 split)
##       video_status      < 0.5      to the left,  agree=0.708, adj=0.364, (0 split)
##       campaign_duration < 30.02    to the left,  agree=0.625, adj=0.182, (0 split)
##       mo_launched       splits as  R---L-L-R-R-, agree=0.625, adj=0.182, (0 split)
##       category          splits as  R---R---R-L----, agree=0.625, adj=0.182, (0 split)
## 
## Node number 1625: 37 observations,    complexity param=0.0001635881
##   mean=0.6756757, MSE=0.2191381 
##   left son=3250 (19 obs) right son=3251 (18 obs)
##   Primary splits:
##       category           splits as  R---R---L-L----, improve=0.19653020, (0 missing)
##       social_media_count splits as  RLR-, improve=0.09440559, (0 missing)
##       description_length < 2320     to the left,  improve=0.07183761, (0 missing)
##       campaign_duration  < 39.365   to the right, improve=0.06760000, (0 missing)
##       mo_launched        splits as  -LLL-R-L-R-L, improve=0.06667989, (0 missing)
##   Surrogate splits:
##       description_length < 2137     to the left,  agree=0.703, adj=0.389, (0 split)
##       reward_length      < 1612     to the right, agree=0.703, adj=0.389, (0 split)
##       campaign_duration  < 47.915   to the right, agree=0.649, adj=0.278, (0 split)
##       mo_launched        splits as  -LRL-L-R-L-R, agree=0.649, adj=0.278, (0 split)
##       goal               < 575      to the left,  agree=0.595, adj=0.167, (0 split)
## 
## Node number 1626: 79 observations,    complexity param=0.0001294271
##   mean=0.5822785, MSE=0.2432303 
##   left son=3252 (62 obs) right son=3253 (17 obs)
##   Primary splits:
##       reward_length      < 2925     to the right, improve=0.06561115, (0 missing)
##       category           splits as  L---R---L-R----, improve=0.03049510, (0 missing)
##       description_length < 1673.5   to the right, improve=0.02749353, (0 missing)
##       social_media_count splits as  RLL-, improve=0.02438590, (0 missing)
##       campaign_duration  < 46.53    to the right, improve=0.02019628, (0 missing)
## 
## Node number 1627: 87 observations,    complexity param=0.0001179065
##   mean=0.7816092, MSE=0.1706963 
##   left son=3254 (73 obs) right son=3255 (14 obs)
##   Primary splits:
##       description_length < 1490     to the right, improve=0.05358582, (0 missing)
##       goal               < 675      to the right, improve=0.03520468, (0 missing)
##       category           splits as  R---L---R-L----, improve=0.02710579, (0 missing)
##       mo_launched        splits as  ---R--LLRL-R, improve=0.02613747, (0 missing)
##       campaign_duration  < 29.5     to the left,  improve=0.02264485, (0 missing)
## 
## Node number 1632: 41 observations,    complexity param=0.0001739049
##   mean=0.3170732, MSE=0.2165378 
##   left son=3264 (28 obs) right son=3265 (13 obs)
##   Primary splits:
##       campaign_duration < 16.38    to the left,  improve=0.19080580, (0 missing)
##       reward_length     < 2143.5   to the left,  improve=0.14449240, (0 missing)
##       video_status      < 0.5      to the left,  improve=0.09782323, (0 missing)
##       goal              < 275      to the left,  improve=0.08994787, (0 missing)
##       category          splits as  L---L---R-L-R--, improve=0.07387057, (0 missing)
##   Surrogate splits:
##       category splits as  L---L---L-L-R--, agree=0.732, adj=0.154, (0 split)
##       goal     < 575      to the left,  agree=0.707, adj=0.077, (0 split)
## 
## Node number 1633: 32 observations,    complexity param=0.0001981542
##   mean=0.65625, MSE=0.2255859 
##   left son=3266 (7 obs) right son=3267 (25 obs)
##   Primary splits:
##       description_length < 698      to the right, improve=0.32714900, (0 missing)
##       reward_length      < 3289.5   to the right, improve=0.07781751, (0 missing)
##       campaign_duration  < 11.815   to the right, improve=0.07070707, (0 missing)
##       social_media_count splits as  LRR-,         improve=0.04163715, (0 missing)
##       goal               < 325      to the left,  improve=0.03896104, (0 missing)
##   Surrogate splits:
##       campaign_duration < 19.515   to the right, agree=0.812, adj=0.143, (0 split)
## 
## Node number 1634: 95 observations,    complexity param=0.000136257
##   mean=0.5789474, MSE=0.2437673 
##   left son=3268 (22 obs) right son=3269 (73 obs)
##   Primary splits:
##       goal               < 610      to the right, improve=0.05731348, (0 missing)
##       category           splits as  R---R---L-L-RL-, improve=0.03736338, (0 missing)
##       reward_length      < 1967     to the left,  improve=0.02723567, (0 missing)
##       social_media_count splits as  RLL-, improve=0.02556818, (0 missing)
##       description_length < 2058.5   to the right, improve=0.02386946, (0 missing)
##   Surrogate splits:
##       category splits as  R---R---R-R-RL-, agree=0.779, adj=0.045, (0 split)
## 
## Node number 1635: 85 observations,    complexity param=0.0001820471
##   mean=0.7411765, MSE=0.1918339 
##   left son=3270 (25 obs) right son=3271 (60 obs)
##   Primary splits:
##       campaign_duration < 8.155    to the left,  improve=0.10625300, (0 missing)
##       category          splits as  L---L---R-R-LL-, improve=0.05891397, (0 missing)
##       usa               < 0.5      to the left,  improve=0.05435411, (0 missing)
##       mo_launched       splits as  L--L-L-LR-LR, improve=0.04726394, (0 missing)
##       reward_length     < 1161     to the right, improve=0.03628118, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  R--R-R-RR-RL, agree=0.741, adj=0.12, (0 split)
##       social_media_count splits as  RRLR,         agree=0.729, adj=0.08, (0 split)
## 
## Node number 1676: 23 observations
##   mean=0.2608696, MSE=0.1928166 
## 
## Node number 1677: 12 observations
##   mean=0.75, MSE=0.1875 
## 
## Node number 1682: 34 observations,    complexity param=0.000115425
##   mean=0.5, MSE=0.25 
##   left son=3364 (7 obs) right son=3365 (27 obs)
##   Primary splits:
##       description_length < 656.5    to the left,  improve=0.13227510, (0 missing)
##       goal               < 2850     to the left,  improve=0.08771930, (0 missing)
##       mo_launched        splits as  ---LRRLRRR-L, improve=0.04761905, (0 missing)
##       social_media_count splits as  LRR-,         improve=0.03557312, (0 missing)
##       reward_length      < 3714.5   to the right, improve=0.03114187, (0 missing)
##   Surrogate splits:
##       mo_launched splits as  ---RLRRRRR-L, agree=0.882, adj=0.429, (0 split)
## 
## Node number 1683: 10 observations
##   mean=0.9, MSE=0.09 
## 
## Node number 1684: 7 observations
##   mean=0.1428571, MSE=0.122449 
## 
## Node number 1685: 17 observations
##   mean=0.6470588, MSE=0.2283737 
## 
## Node number 1686: 22 observations
##   mean=0.6363636, MSE=0.231405 
## 
## Node number 1687: 23 observations
##   mean=0.9565217, MSE=0.0415879 
## 
## Node number 1692: 30 observations,    complexity param=0.0001123042
##   mean=0.5666667, MSE=0.2455556 
##   left son=3384 (8 obs) right son=3385 (22 obs)
##   Primary splits:
##       campaign_duration  < 54.875   to the right, improve=0.148498600, (0 missing)
##       goal               < 2750     to the right, improve=0.097187640, (0 missing)
##       reward_length      < 3610     to the right, improve=0.049773760, (0 missing)
##       description_length < 2133.5   to the left,  improve=0.040723980, (0 missing)
##       mo_launched        splits as  R-LRR------L, improve=0.006581654, (0 missing)
##   Surrogate splits:
##       video_status < 0.5      to the left,  agree=0.767, adj=0.125, (0 split)
## 
## Node number 1693: 43 observations,    complexity param=0.000124172
##   mean=0.8139535, MSE=0.1514332 
##   left son=3386 (16 obs) right son=3387 (27 obs)
##   Primary splits:
##       reward_length      < 3736.5   to the left,  improve=0.24742890, (0 missing)
##       mo_launched        splits as  -R---LLLLLR-, improve=0.06050420, (0 missing)
##       description_length < 3233.5   to the left,  improve=0.04444444, (0 missing)
##       campaign_duration  < 35.19    to the left,  improve=0.04251553, (0 missing)
##       goal               < 1825     to the left,  improve=0.01275510, (0 missing)
##   Surrogate splits:
##       mo_launched       splits as  -R---RRLRRR-, agree=0.698, adj=0.188, (0 split)
##       campaign_duration < 41.105   to the right, agree=0.674, adj=0.125, (0 split)
##       video_status      < 0.5      to the left,  agree=0.651, adj=0.063, (0 split)
##       goal              < 1550     to the left,  agree=0.651, adj=0.063, (0 split)
## 
## Node number 1716: 13 observations
##   mean=0.3846154, MSE=0.2366864 
## 
## Node number 1717: 44 observations
##   mean=0.7727273, MSE=0.1756198 
## 
## Node number 1718: 47 observations,    complexity param=0.0001075457
##   mean=0.7446809, MSE=0.1901313 
##   left son=3436 (19 obs) right son=3437 (28 obs)
##   Primary splits:
##       mo_launched        splits as  R--RR-R-LLL-, improve=0.17017990, (0 missing)
##       description_length < 1295.5   to the left,  improve=0.06788907, (0 missing)
##       goal               < 425      to the left,  improve=0.03888249, (0 missing)
##       reward_length      < 2353     to the right, improve=0.02762755, (0 missing)
##       social_media_count splits as  RLR-,         improve=0.01545330, (0 missing)
##   Surrogate splits:
##       reward_length      < 2398     to the right, agree=0.660, adj=0.158, (0 split)
##       goal               < 425      to the left,  agree=0.638, adj=0.105, (0 split)
##       social_media_count splits as  RRL-,         agree=0.617, adj=0.053, (0 split)
##       description_length < 840.5    to the left,  agree=0.617, adj=0.053, (0 split)
## 
## Node number 1719: 79 observations
##   mean=0.8860759, MSE=0.1009454 
## 
## Node number 1792: 74 observations
##   mean=0.06756757, MSE=0.06300219 
## 
## Node number 1793: 18 observations
##   mean=0.3888889, MSE=0.2376543 
## 
## Node number 1794: 33 observations,    complexity param=0.000171653
##   mean=0.2121212, MSE=0.1671258 
##   left son=3588 (23 obs) right son=3589 (10 obs)
##   Primary splits:
##       reward_length      < 4317.5   to the right, improve=0.39139990, (0 missing)
##       goal               < 2750     to the right, improve=0.12607060, (0 missing)
##       campaign_duration  < 44.98    to the left,  improve=0.07547398, (0 missing)
##       description_length < 725      to the right, improve=0.07547398, (0 missing)
##       social_media_count splits as  LR--,         improve=0.05079670, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 48.825   to the left,  agree=0.758, adj=0.2, (0 split)
##       description_length < 745.5    to the right, agree=0.758, adj=0.2, (0 split)
##       mo_launched        splits as  -L--LLL----R, agree=0.727, adj=0.1, (0 split)
## 
## Node number 1795: 48 observations,    complexity param=0.0001488798
##   mean=0.4583333, MSE=0.2482639 
##   left son=3590 (28 obs) right son=3591 (20 obs)
##   Primary splits:
##       reward_length      < 5946.5   to the right, improve=0.10569430, (0 missing)
##       mo_launched        splits as  -L--LLR----L, improve=0.08661363, (0 missing)
##       description_length < 845      to the left,  improve=0.06844375, (0 missing)
##       campaign_duration  < 24.52    to the right, improve=0.04505251, (0 missing)
##       goal               < 3173.5   to the left,  improve=0.03690156, (0 missing)
##   Surrogate splits:
##       description_length < 1574     to the left,  agree=0.667, adj=0.20, (0 split)
##       goal               < 2750     to the right, agree=0.646, adj=0.15, (0 split)
##       category           splits as  L-------R---L--, agree=0.625, adj=0.10, (0 split)
##       campaign_duration  < 39.685   to the left,  agree=0.604, adj=0.05, (0 split)
## 
## Node number 1806: 39 observations,    complexity param=0.0001034897
##   mean=0.5384615, MSE=0.2485207 
##   left son=3612 (11 obs) right son=3613 (28 obs)
##   Primary splits:
##       description_length < 1622.5   to the right, improve=0.11162650, (0 missing)
##       reward_length      < 6352     to the left,  improve=0.05635436, (0 missing)
##       category           splits as  R-------L---L--, improve=0.03048627, (0 missing)
##       goal               < 1350     to the right, improve=0.02939447, (0 missing)
##       mo_launched        splits as  L-RR--LLLL--, improve=0.02721088, (0 missing)
##   Surrogate splits:
##       mo_launched splits as  R-RR--RLRR--, agree=0.769, adj=0.182, (0 split)
## 
## Node number 1807: 8 observations
##   mean=0.875, MSE=0.109375 
## 
## Node number 1812: 9 observations
##   mean=0.1111111, MSE=0.09876543 
## 
## Node number 1813: 32 observations
##   mean=0.53125, MSE=0.2490234 
## 
## Node number 1816: 16 observations
##   mean=0.0625, MSE=0.05859375 
## 
## Node number 1817: 327 observations,    complexity param=0.0001963733
##   mean=0.4678899, MSE=0.2489689 
##   left son=3634 (49 obs) right son=3635 (278 obs)
##   Primary splits:
##       category      splits as  --------L---R--, improve=0.02349561, (0 missing)
##       mo_launched   splits as  RRLRLLLRLRRL, improve=0.01383289, (0 missing)
##       reward_length < 7896.5   to the right, improve=0.01184305, (0 missing)
##       usa           < 0.5      to the left,  improve=0.01144222, (0 missing)
##       goal          < 1725     to the right, improve=0.01032608, (0 missing)
##   Surrogate splits:
##       reward_length      < 7985.5   to the right, agree=0.856, adj=0.041, (0 split)
##       social_media_count splits as  RRRL,         agree=0.853, adj=0.020, (0 split)
## 
## Node number 1818: 66 observations
##   mean=0.5757576, MSE=0.2442608 
## 
## Node number 1819: 32 observations
##   mean=0.8125, MSE=0.1523438 
## 
## Node number 1820: 14 observations
##   mean=0.07142857, MSE=0.06632653 
## 
## Node number 1821: 106 observations,    complexity param=0.0001101662
##   mean=0.5754717, MSE=0.244304 
##   left son=3642 (15 obs) right son=3643 (91 obs)
##   Primary splits:
##       campaign_duration  < 19.5     to the left,  improve=0.03955911, (0 missing)
##       reward_length      < 4863     to the right, improve=0.03208351, (0 missing)
##       goal               < 1343     to the right, improve=0.02997844, (0 missing)
##       description_length < 1966.5   to the right, improve=0.02429972, (0 missing)
##       mo_launched        splits as  R------L--RR, improve=0.00119774, (0 missing)
##   Surrogate splits:
##       description_length < 2048     to the right, agree=0.868, adj=0.067, (0 split)
## 
## Node number 1822: 216 observations,    complexity param=0.0002056639
##   mean=0.625, MSE=0.234375 
##   left son=3644 (12 obs) right son=3645 (204 obs)
##   Primary splits:
##       campaign_duration  < 34.515   to the right, improve=0.05272331, (0 missing)
##       reward_length      < 5426     to the left,  improve=0.01684313, (0 missing)
##       description_length < 819      to the right, improve=0.01481481, (0 missing)
##       mo_launched        splits as  -RLLRLL-LL--, improve=0.01209831, (0 missing)
##       goal               < 3410     to the right, improve=0.00781417, (0 missing)
## 
## Node number 1823: 48 observations,    complexity param=0.0002056639
##   mean=0.7916667, MSE=0.1649306 
##   left son=3646 (12 obs) right son=3647 (36 obs)
##   Primary splits:
##       mo_launched        splits as  -LRRLR--RR--, improve=0.28421050, (0 missing)
##       description_length < 1718.5   to the left,  improve=0.07823613, (0 missing)
##       reward_length      < 7844.5   to the right, improve=0.06998265, (0 missing)
##       campaign_duration  < 44.73    to the right, improve=0.04210526, (0 missing)
##       goal               < 1900     to the left,  improve=0.02186235, (0 missing)
##   Surrogate splits:
##       description_length < 1984     to the right, agree=0.792, adj=0.167, (0 split)
## 
## Node number 1824: 30 observations
##   mean=0.2, MSE=0.16 
## 
## Node number 1825: 69 observations,    complexity param=0.0001177554
##   mean=0.4347826, MSE=0.2457467 
##   left son=3650 (40 obs) right son=3651 (29 obs)
##   Primary splits:
##       goal               < 950      to the left,  improve=0.06764589, (0 missing)
##       mo_launched        splits as  R-L--LL---L-, improve=0.03213765, (0 missing)
##       description_length < 589      to the left,  improve=0.02925101, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.02189474, (0 missing)
##       social_media_count splits as  RLLL,         improve=0.02026766, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 59.98    to the left,  agree=0.638, adj=0.138, (0 split)
##       reward_length      < 8498     to the left,  agree=0.638, adj=0.138, (0 split)
##       social_media_count splits as  LRRR, agree=0.623, adj=0.103, (0 split)
##       mo_launched        splits as  L-L--LR---L-, agree=0.623, adj=0.103, (0 split)
##       category           splits as  L-------R---L--, agree=0.609, adj=0.069, (0 split)
## 
## Node number 1826: 11 observations
##   mean=0.1818182, MSE=0.1487603 
## 
## Node number 1827: 99 observations,    complexity param=0.000129522
##   mean=0.5454545, MSE=0.2479339 
##   left son=3654 (90 obs) right son=3655 (9 obs)
##   Primary splits:
##       description_length < 1872     to the left,  improve=0.04757202, (0 missing)
##       mo_launched        splits as  L-L--LLRL-LR, improve=0.04578566, (0 missing)
##       reward_length      < 4584     to the left,  improve=0.04032922, (0 missing)
##       category           splits as  R-------L---R--, improve=0.03098996, (0 missing)
##       goal               < 525      to the right, improve=0.03097998, (0 missing)
## 
## Node number 1828: 8 observations
##   mean=0.125, MSE=0.109375 
## 
## Node number 1829: 18 observations
##   mean=0.7222222, MSE=0.2006173 
## 
## Node number 1832: 12 observations
##   mean=0.08333333, MSE=0.07638889 
## 
## Node number 1833: 52 observations,    complexity param=0.000106909
##   mean=0.6153846, MSE=0.2366864 
##   left son=3666 (23 obs) right son=3667 (29 obs)
##   Primary splits:
##       goal               < 675      to the right, improve=0.063006000, (0 missing)
##       description_length < 1026.5   to the left,  improve=0.050052080, (0 missing)
##       reward_length      < 8956.5   to the right, improve=0.046666670, (0 missing)
##       mo_launched        splits as  -R-RL----R--, improve=0.043025210, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.008333333, (0 missing)
##   Surrogate splits:
##       reward_length      < 7844     to the right, agree=0.654, adj=0.217, (0 split)
##       video_status       < 0.5      to the left,  agree=0.615, adj=0.130, (0 split)
##       social_media_count splits as  RRL-, agree=0.596, adj=0.087, (0 split)
##       category           splits as  L-------R---R--, agree=0.596, adj=0.087, (0 split)
##       description_length < 1677     to the right, agree=0.596, adj=0.087, (0 split)
## 
## Node number 1842: 24 observations,    complexity param=0.0001363999
##   mean=0.5, MSE=0.25 
##   left son=3684 (8 obs) right son=3685 (16 obs)
##   Primary splits:
##       mo_launched       splits as  RLRR-------L, improve=0.28125000, (0 missing)
##       video_status      < 0.5      to the left,  improve=0.12500000, (0 missing)
##       goal              < 425      to the right, improve=0.06666667, (0 missing)
##       reward_length     < 6330.5   to the right, improve=0.06293706, (0 missing)
##       campaign_duration < 12.61    to the right, improve=0.03125000, (0 missing)
##   Surrogate splits:
##       description_length < 1059.5   to the left,  agree=0.75, adj=0.25, (0 split)
## 
## Node number 1843: 11 observations
##   mean=0.9090909, MSE=0.08264463 
## 
## Node number 1858: 12 observations
##   mean=0.08333333, MSE=0.07638889 
## 
## Node number 1859: 140 observations,    complexity param=0.0001191364
##   mean=0.4571429, MSE=0.2481633 
##   left son=3718 (64 obs) right son=3719 (76 obs)
##   Primary splits:
##       mo_launched        splits as  RLRRRLLLRRLR, improve=0.03243554, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.03189300, (0 missing)
##       goal               < 3594.5   to the right, improve=0.02640716, (0 missing)
##       reward_length      < 4701.5   to the left,  improve=0.02507325, (0 missing)
##       description_length < 2247.5   to the left,  improve=0.01620965, (0 missing)
##   Surrogate splits:
##       campaign_duration < 36.395   to the right, agree=0.607, adj=0.141, (0 split)
##       video_status      < 0.5      to the left,  agree=0.593, adj=0.109, (0 split)
##       goal              < 2800     to the right, agree=0.571, adj=0.063, (0 split)
##       reward_length     < 4386     to the left,  agree=0.571, adj=0.063, (0 split)
##       category          splits as  --------L---R--, agree=0.564, adj=0.047, (0 split)
## 
## Node number 1860: 7 observations
##   mean=0, MSE=0 
## 
## Node number 1861: 131 observations,    complexity param=0.0001339236
##   mean=0.480916, MSE=0.2496358 
##   left son=3722 (12 obs) right son=3723 (119 obs)
##   Primary splits:
##       description_length < 2310.5   to the left,  improve=0.03989112, (0 missing)
##       goal               < 1635.5   to the right, improve=0.03259486, (0 missing)
##       reward_length      < 5568     to the right, improve=0.02546877, (0 missing)
##       campaign_duration  < 34.45    to the right, improve=0.01215622, (0 missing)
##       mo_launched        splits as  -R--R-L-R--R, improve=0.01093047, (0 missing)
##   Surrogate splits:
##       campaign_duration < 66.325   to the right, agree=0.931, adj=0.25, (0 split)
## 
## Node number 1862: 40 observations,    complexity param=0.0001764781
##   mean=0.4, MSE=0.24 
##   left son=3724 (12 obs) right son=3725 (28 obs)
##   Primary splits:
##       campaign_duration  < 37.54    to the right, improve=0.17906750, (0 missing)
##       mo_launched        splits as  L-RR-L-R-LL-, improve=0.13232600, (0 missing)
##       reward_length      < 5123     to the left,  improve=0.10095580, (0 missing)
##       description_length < 3073.5   to the right, improve=0.09375000, (0 missing)
##       goal               < 1875     to the left,  improve=0.07738095, (0 missing)
##   Surrogate splits:
##       description_length < 2336     to the left,  agree=0.750, adj=0.167, (0 split)
##       reward_length      < 4906     to the left,  agree=0.725, adj=0.083, (0 split)
## 
## Node number 1863: 147 observations,    complexity param=0.0002303799
##   mean=0.7142857, MSE=0.2040816 
##   left son=3726 (39 obs) right son=3727 (108 obs)
##   Primary splits:
##       description_length < 4231     to the right, improve=0.05470085, (0 missing)
##       social_media_count splits as  RRLL,         improve=0.04500000, (0 missing)
##       campaign_duration  < 53.165   to the right, improve=0.02368421, (0 missing)
##       mo_launched        splits as  R-LL-R-L-RL-, improve=0.02314815, (0 missing)
##       goal               < 3456     to the right, improve=0.01975453, (0 missing)
##   Surrogate splits:
##       social_media_count splits as  RRRL, agree=0.741, adj=0.026, (0 split)
## 
## Node number 1864: 24 observations,    complexity param=0.0001035966
##   mean=0.25, MSE=0.1875 
##   left son=3728 (17 obs) right son=3729 (7 obs)
##   Primary splits:
##       description_length < 4596     to the left,  improve=0.22689080, (0 missing)
##       reward_length      < 4494     to the right, improve=0.22689080, (0 missing)
##       mo_launched        splits as  L--RL---R--L, improve=0.08571429, (0 missing)
##       goal               < 374.5    to the right, improve=0.05827506, (0 missing)
##       campaign_duration  < 32.09    to the left,  improve=0.04166667, (0 missing)
##   Surrogate splits:
##       campaign_duration < 34.555   to the left,  agree=0.75, adj=0.143, (0 split)
## 
## Node number 1865: 21 observations,    complexity param=0.0001035966
##   mean=0.5238095, MSE=0.2494331 
##   left son=3730 (14 obs) right son=3731 (7 obs)
##   Primary splits:
##       campaign_duration  < 29.085   to the right, improve=0.22272730, (0 missing)
##       goal               < 712.5    to the right, improve=0.22272730, (0 missing)
##       mo_launched        splits as  R--LR---L--L, improve=0.06136364, (0 missing)
##       description_length < 3844.5   to the right, improve=0.05463287, (0 missing)
##       reward_length      < 4781     to the left,  improve=0.02526224, (0 missing)
##   Surrogate splits:
##       goal     < 630      to the right, agree=0.810, adj=0.429, (0 split)
##       category splits as  --------R---L--, agree=0.714, adj=0.143, (0 split)
## 
## Node number 1872: 26 observations
##   mean=0.1538462, MSE=0.1301775 
## 
## Node number 1873: 9 observations
##   mean=0.5555556, MSE=0.2469136 
## 
## Node number 1884: 25 observations
##   mean=0.52, MSE=0.2496 
## 
## Node number 1885: 9 observations
##   mean=1, MSE=0 
## 
## Node number 1886: 7 observations
##   mean=0.4285714, MSE=0.244898 
## 
## Node number 1887: 146 observations
##   mean=0.8219178, MSE=0.1463689 
## 
## Node number 1888: 32 observations,    complexity param=0.0001612437
##   mean=0.3125, MSE=0.2148438 
##   left son=3776 (23 obs) right son=3777 (9 obs)
##   Primary splits:
##       mo_launched        splits as  RLLLL-LRLRLR, improve=0.22845850, (0 missing)
##       description_length < 4594     to the left,  improve=0.08737662, (0 missing)
##       social_media_count splits as  RLL-,         improve=0.07386913, (0 missing)
##       goal               < 2774.5   to the left,  improve=0.07386913, (0 missing)
##       campaign_duration  < 33.49    to the right, improve=0.05939394, (0 missing)
## 
## Node number 1889: 480 observations,    complexity param=0.0002252796
##   mean=0.5979167, MSE=0.2404123 
##   left son=3778 (420 obs) right son=3779 (60 obs)
##   Primary splits:
##       reward_length      < 13534    to the left,  improve=0.020428800, (0 missing)
##       description_length < 4276.5   to the left,  improve=0.013662650, (0 missing)
##       mo_launched        splits as  RRLRLRLRLRLL, improve=0.012782810, (0 missing)
##       campaign_duration  < 24.945   to the left,  improve=0.011218490, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.009311418, (0 missing)
## 
## Node number 1890: 15 observations
##   mean=0.4, MSE=0.24 
## 
## Node number 1891: 180 observations,    complexity param=0.0001607786
##   mean=0.7222222, MSE=0.2006173 
##   left son=3782 (81 obs) right son=3783 (99 obs)
##   Primary splits:
##       mo_launched        splits as  RLRLLRRLRRLL, improve=0.02626263, (0 missing)
##       reward_length      < 10384.5  to the left,  improve=0.01825165, (0 missing)
##       description_length < 6509.5   to the left,  improve=0.01750698, (0 missing)
##       goal               < 2850     to the left,  improve=0.01391693, (0 missing)
##       campaign_duration  < 30.085   to the left,  improve=0.01110769, (0 missing)
##   Surrogate splits:
##       description_length < 5879.5   to the right, agree=0.594, adj=0.099, (0 split)
##       social_media_count splits as  RRLR,         agree=0.572, adj=0.049, (0 split)
##       campaign_duration  < 49.11    to the right, agree=0.567, adj=0.037, (0 split)
##       reward_length      < 7339     to the left,  agree=0.567, adj=0.037, (0 split)
## 
## Node number 1892: 35 observations,    complexity param=0.0001253412
##   mean=0.6, MSE=0.24 
##   left son=3784 (28 obs) right son=3785 (7 obs)
##   Primary splits:
##       description_length < 2463.5   to the right, improve=0.16666670, (0 missing)
##       category           splits as  L-------L---R--, improve=0.13943360, (0 missing)
##       goal               < 3450     to the right, improve=0.06250000, (0 missing)
##       reward_length      < 7491     to the left,  improve=0.03490028, (0 missing)
##       campaign_duration  < 18.84    to the right, improve=0.01388889, (0 missing)
##   Surrogate splits:
##       social_media_count splits as  LRL-,         agree=0.829, adj=0.143, (0 split)
##       mo_launched        splits as  -----L-L-LLR, agree=0.829, adj=0.143, (0 split)
## 
## Node number 1893: 8 observations
##   mean=1, MSE=0 
## 
## Node number 1896: 35 observations
##   mean=0.3714286, MSE=0.2334694 
## 
## Node number 1897: 27 observations,    complexity param=0.000115668
##   mean=0.8148148, MSE=0.1508916 
##   left son=3794 (8 obs) right son=3795 (19 obs)
##   Primary splits:
##       reward_length      < 8328     to the left,  improve=0.27655500, (0 missing)
##       campaign_duration  < 25.515   to the left,  improve=0.13740260, (0 missing)
##       description_length < 5096     to the right, improve=0.07272727, (0 missing)
##       social_media_count splits as  RLL-,         improve=0.07272727, (0 missing)
##       mo_launched        splits as  ---LL-R-RRR-, improve=0.02344156, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 22.65    to the left,  agree=0.778, adj=0.250, (0 split)
##       video_status       < 0.5      to the left,  agree=0.778, adj=0.250, (0 split)
##       social_media_count splits as  RRL-,         agree=0.741, adj=0.125, (0 split)
## 
## Node number 1898: 114 observations,    complexity param=0.0001719448
##   mean=0.6403509, MSE=0.2303016 
##   left son=3796 (74 obs) right son=3797 (40 obs)
##   Primary splits:
##       campaign_duration < 28.315   to the right, improve=0.08002501, (0 missing)
##       goal              < 999.5    to the right, improve=0.02354714, (0 missing)
##       category          splits as  R-------L---R--, improve=0.01786983, (0 missing)
##       reward_length     < 10142    to the right, improve=0.01716598, (0 missing)
##       video_status      < 0.5      to the left,  improve=0.01603742, (0 missing)
##   Surrogate splits:
##       goal               < 999.5    to the right, agree=0.737, adj=0.250, (0 split)
##       description_length < 2620.5   to the right, agree=0.702, adj=0.150, (0 split)
##       reward_length      < 12967    to the left,  agree=0.675, adj=0.075, (0 split)
## 
## Node number 1899: 481 observations,    complexity param=0.0001648558
##   mean=0.7567568, MSE=0.184076 
##   left son=3798 (245 obs) right son=3799 (236 obs)
##   Primary splits:
##       goal               < 1341.5   to the left,  improve=0.014459280, (0 missing)
##       description_length < 4789.5   to the left,  improve=0.013351220, (0 missing)
##       reward_length      < 11492    to the left,  improve=0.010799360, (0 missing)
##       campaign_duration  < 67.005   to the right, improve=0.008640939, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.006455309, (0 missing)
##   Surrogate splits:
##       social_media_count splits as  LRLR,         agree=0.574, adj=0.131, (0 split)
##       campaign_duration  < 31.985   to the right, agree=0.547, adj=0.076, (0 split)
##       description_length < 2677.5   to the right, agree=0.545, adj=0.072, (0 split)
##       mo_launched        splits as  -LLLRLLLRL--, agree=0.528, adj=0.038, (0 split)
##       reward_length      < 6769     to the right, agree=0.528, adj=0.038, (0 split)
## 
## Node number 1904: 17 observations
##   mean=0.3529412, MSE=0.2283737 
## 
## Node number 1905: 40 observations
##   mean=0.675, MSE=0.219375 
## 
## Node number 1906: 10 observations
##   mean=0.5, MSE=0.25 
## 
## Node number 1907: 19 observations
##   mean=1, MSE=0 
## 
## Node number 1912: 12 observations
##   mean=0.25, MSE=0.1875 
## 
## Node number 1913: 11 observations
##   mean=0.8181818, MSE=0.1487603 
## 
## Node number 1926: 27 observations,    complexity param=0.0001595895
##   mean=0.4074074, MSE=0.2414266 
##   left son=3852 (16 obs) right son=3853 (11 obs)
##   Primary splits:
##       reward_length      < 4891     to the left,  improve=0.29135460, (0 missing)
##       mo_launched        splits as  R--R---L-LLR, improve=0.10481280, (0 missing)
##       goal               < 3750     to the left,  improve=0.03900162, (0 missing)
##       social_media_count splits as  LR-R,         improve=0.02840909, (0 missing)
##       description_length < 673      to the right, improve=0.02840909, (0 missing)
##   Surrogate splits:
##       goal               < 2750     to the right, agree=0.741, adj=0.364, (0 split)
##       description_length < 655.5    to the right, agree=0.704, adj=0.273, (0 split)
##       mo_launched        splits as  L--L---L-LLR, agree=0.667, adj=0.182, (0 split)
##       social_media_count splits as  LL-R, agree=0.630, adj=0.091, (0 split)
##       category           splits as  ----L-----L--R-, agree=0.630, adj=0.091, (0 split)
## 
## Node number 1927: 54 observations,    complexity param=0.0001413784
##   mean=0.6666667, MSE=0.2222222 
##   left son=3854 (40 obs) right son=3855 (14 obs)
##   Primary splits:
##       description_length < 1419.5   to the right, improve=0.10803570, (0 missing)
##       reward_length      < 5624.5   to the right, improve=0.10389610, (0 missing)
##       mo_launched        splits as  R--LL--R-RRR, improve=0.04812030, (0 missing)
##       campaign_duration  < 60.025   to the right, improve=0.03799392, (0 missing)
##       social_media_count splits as  LRLR,         improve=0.03076923, (0 missing)
##   Surrogate splits:
##       social_media_count splits as  LLLR, agree=0.759, adj=0.071, (0 split)
## 
## Node number 1928: 10 observations
##   mean=0, MSE=0 
## 
## Node number 1929: 29 observations,    complexity param=0.0001102283
##   mean=0.3793103, MSE=0.235434 
##   left son=3858 (20 obs) right son=3859 (9 obs)
##   Primary splits:
##       mo_launched        splits as  RLLLRL-LLRLR, improve=0.15782830, (0 missing)
##       description_length < 277.5    to the left,  improve=0.07556080, (0 missing)
##       campaign_duration  < 59.98    to the left,  improve=0.05937149, (0 missing)
##       reward_length      < 4733.5   to the left,  improve=0.01770105, (0 missing)
##       goal               < 1125     to the right, improve=0.00962001, (0 missing)
##   Surrogate splits:
##       reward_length      < 4268     to the right, agree=0.759, adj=0.222, (0 split)
##       social_media_count splits as  L-R-, agree=0.724, adj=0.111, (0 split)
##       category           splits as  ----L-----L--R-, agree=0.724, adj=0.111, (0 split)
##       goal               < 900      to the right, agree=0.724, adj=0.111, (0 split)
## 
## Node number 1932: 171 observations,    complexity param=0.0001198046
##   mean=0.5321637, MSE=0.2489655 
##   left son=3864 (29 obs) right son=3865 (142 obs)
##   Primary splits:
##       mo_launched        splits as  ---RRRRLRR-R, improve=0.019165520, (0 missing)
##       description_length < 1963.5   to the left,  improve=0.018422780, (0 missing)
##       reward_length      < 4755.5   to the right, improve=0.015914570, (0 missing)
##       campaign_duration  < 29.715   to the right, improve=0.009237047, (0 missing)
##       goal               < 2050     to the left,  improve=0.005686430, (0 missing)
## 
## Node number 1933: 58 observations,    complexity param=0.0001200585
##   mean=0.6896552, MSE=0.2140309 
##   left son=3866 (25 obs) right son=3867 (33 obs)
##   Primary splits:
##       reward_length      < 5180.5   to the right, improve=0.10187880, (0 missing)
##       mo_launched        splits as  ---LLLLRLL-R, improve=0.07200000, (0 missing)
##       goal               < 1450     to the left,  improve=0.03472023, (0 missing)
##       description_length < 759      to the right, improve=0.03406400, (0 missing)
##       campaign_duration  < 20.03    to the left,  improve=0.02688889, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  ---RRRRRLR-R, agree=0.655, adj=0.20, (0 split)
##       campaign_duration  < 20.03    to the left,  agree=0.603, adj=0.08, (0 split)
##       category           splits as  ----L-----R----, agree=0.586, adj=0.04, (0 split)
##       goal               < 250      to the left,  agree=0.586, adj=0.04, (0 split)
##       description_length < 2380.5   to the right, agree=0.586, adj=0.04, (0 split)
## 
## Node number 1934: 21 observations
##   mean=0.4761905, MSE=0.2494331 
## 
## Node number 1935: 92 observations
##   mean=0.7717391, MSE=0.1761578 
## 
## Node number 1936: 8 observations
##   mean=0, MSE=0 
## 
## Node number 1937: 30 observations
##   mean=0.4333333, MSE=0.2455556 
## 
## Node number 1938: 9 observations
##   mean=0.2222222, MSE=0.1728395 
## 
## Node number 1939: 22 observations
##   mean=0.8636364, MSE=0.1177686 
## 
## Node number 1944: 154 observations,    complexity param=0.0001347957
##   mean=0.5974026, MSE=0.2405127 
##   left son=3888 (13 obs) right son=3889 (141 obs)
##   Primary splits:
##       description_length < 3100.5   to the right, improve=0.05152881, (0 missing)
##       reward_length      < 8865.5   to the right, improve=0.02383196, (0 missing)
##       campaign_duration  < 59.98    to the right, improve=0.01930484, (0 missing)
##       goal               < 325      to the right, improve=0.01755617, (0 missing)
##       mo_launched        splits as  -RLRRRLR-L--, improve=0.01688388, (0 missing)
## 
## Node number 1945: 33 observations
##   mean=0.7878788, MSE=0.1671258 
## 
## Node number 1956: 57 observations,    complexity param=0.0001696005
##   mean=0.4912281, MSE=0.2499231 
##   left son=3912 (32 obs) right son=3913 (25 obs)
##   Primary splits:
##       reward_length      < 5197.5   to the right, improve=0.11139320, (0 missing)
##       description_length < 1138     to the left,  improve=0.06208949, (0 missing)
##       campaign_duration  < 45.585   to the right, improve=0.03251956, (0 missing)
##       mo_launched        splits as  --RLLL-LL-LL, improve=0.02015470, (0 missing)
##       goal               < 2350     to the right, improve=0.01481770, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  --RLLL-RR-LL, agree=0.702, adj=0.32, (0 split)
##       description_length < 3050.5   to the left,  agree=0.632, adj=0.16, (0 split)
##       campaign_duration  < 36.485   to the left,  agree=0.579, adj=0.04, (0 split)
##       goal               < 2050     to the right, agree=0.579, adj=0.04, (0 split)
## 
## Node number 1957: 40 observations,    complexity param=0.0001696005
##   mean=0.7, MSE=0.21 
##   left son=3914 (7 obs) right son=3915 (33 obs)
##   Primary splits:
##       reward_length      < 4342     to the left,  improve=0.31354360, (0 missing)
##       campaign_duration  < 38.01    to the right, improve=0.10882220, (0 missing)
##       description_length < 2275     to the right, improve=0.06349206, (0 missing)
##       mo_launched        splits as  --RLRL-RL-LL, improve=0.04897572, (0 missing)
##       goal               < 775      to the right, improve=0.01587302, (0 missing)
## 
## Node number 1984: 22 observations
##   mean=0.1363636, MSE=0.1177686 
## 
## Node number 1985: 55 observations,    complexity param=0.000123644
##   mean=0.4181818, MSE=0.2433058 
##   left son=3970 (24 obs) right son=3971 (31 obs)
##   Primary splits:
##       description_length < 720.5    to the left,  improve=0.09000263, (0 missing)
##       category           splits as  ------R---L----, improve=0.07082069, (0 missing)
##       reward_length      < 5301     to the left,  improve=0.04498472, (0 missing)
##       social_media_count splits as  RLL-, improve=0.02274226, (0 missing)
##       campaign_duration  < 64.585   to the right, improve=0.01978781, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  -R--R-LR----, agree=0.655, adj=0.208, (0 split)
##       campaign_duration  < 39.04    to the left,  agree=0.600, adj=0.083, (0 split)
##       social_media_count splits as  RRL-,         agree=0.600, adj=0.083, (0 split)
##       reward_length      < 5778.5   to the right, agree=0.582, adj=0.042, (0 split)
## 
## Node number 1992: 13 observations
##   mean=0.1538462, MSE=0.1301775 
## 
## Node number 1993: 23 observations,    complexity param=0.0001190144
##   mean=0.4782609, MSE=0.2495274 
##   left son=3986 (16 obs) right son=3987 (7 obs)
##   Primary splits:
##       reward_length      < 4254     to the left,  improve=0.25169100, (0 missing)
##       mo_launched        splits as  --RL-R---RRL, improve=0.16889130, (0 missing)
##       description_length < 597.5    to the left,  improve=0.09796037, (0 missing)
##       campaign_duration  < 45.95    to the right, improve=0.01658632, (0 missing)
##       goal               < 2100     to the right, improve=0.01539202, (0 missing)
##   Surrogate splits:
##       mo_launched splits as  --LL-R---LRL, agree=0.783, adj=0.286, (0 split)
## 
## Node number 1996: 9 observations
##   mean=0, MSE=0 
## 
## Node number 1997: 14 observations
##   mean=0.7857143, MSE=0.1683673 
## 
## Node number 1998: 79 observations,    complexity param=0.0001633467
##   mean=0.5949367, MSE=0.240987 
##   left son=3996 (15 obs) right son=3997 (64 obs)
##   Primary splits:
##       reward_length      < 8113.5   to the right, improve=0.10480450, (0 missing)
##       campaign_duration  < 52.425   to the right, improve=0.07577135, (0 missing)
##       description_length < 454.5    to the left,  improve=0.03695770, (0 missing)
##       category           splits as  ------L---R----, improve=0.02773176, (0 missing)
##       goal               < 999.5    to the left,  improve=0.02285307, (0 missing)
##   Surrogate splits:
##       description_length < 1089     to the right, agree=0.823, adj=0.067, (0 split)
## 
## Node number 1999: 157 observations,    complexity param=0.0001440448
##   mean=0.7452229, MSE=0.1898657 
##   left son=3998 (138 obs) right son=3999 (19 obs)
##   Primary splits:
##       goal               < 650      to the right, improve=0.047070480, (0 missing)
##       campaign_duration  < 36.875   to the left,  improve=0.028975290, (0 missing)
##       description_length < 1066.5   to the left,  improve=0.028293550, (0 missing)
##       reward_length      < 9008.5   to the left,  improve=0.014946040, (0 missing)
##       mo_launched        splits as  L-RR-----R-R, improve=0.004492521, (0 missing)
## 
## Node number 2000: 124 observations,    complexity param=0.0001373511
##   mean=0.5483871, MSE=0.2476587 
##   left son=4000 (68 obs) right son=4001 (56 obs)
##   Primary splits:
##       mo_launched       splits as  -LR--RRL--L-, improve=0.04195612, (0 missing)
##       category          splits as  ----L-R---L--R-, improve=0.04076230, (0 missing)
##       goal              < 775      to the left,  improve=0.03972871, (0 missing)
##       reward_length     < 7367.5   to the left,  improve=0.02242371, (0 missing)
##       campaign_duration < 13.68    to the left,  improve=0.01666821, (0 missing)
##   Surrogate splits:
##       description_length < 481      to the left,  agree=0.613, adj=0.143, (0 split)
##       reward_length      < 5089     to the right, agree=0.597, adj=0.107, (0 split)
##       category           splits as  ----L-R---L--L-, agree=0.589, adj=0.089, (0 split)
##       campaign_duration  < 21.875   to the right, agree=0.581, adj=0.071, (0 split)
##       goal               < 1300     to the right, agree=0.573, adj=0.054, (0 split)
## 
## Node number 2001: 221 observations,    complexity param=0.0001309726
##   mean=0.678733, MSE=0.2180545 
##   left son=4002 (206 obs) right son=4003 (15 obs)
##   Primary splits:
##       reward_length      < 4166.5   to the right, improve=0.021645960, (0 missing)
##       goal               < 2050     to the right, improve=0.021540670, (0 missing)
##       description_length < 731      to the right, improve=0.019360250, (0 missing)
##       campaign_duration  < 23.325   to the right, improve=0.008718004, (0 missing)
##       mo_launched        splits as  -RL--LLL--R-, improve=0.007921477, (0 missing)
##   Surrogate splits:
##       category splits as  ----LRL---L--L-, agree=0.937, adj=0.067, (0 split)
## 
## Node number 2002: 235 observations,    complexity param=0.0001840924
##   mean=0.7106383, MSE=0.2056315 
##   left son=4004 (126 obs) right son=4005 (109 obs)
##   Primary splits:
##       description_length < 791.5    to the right, improve=0.03933957, (0 missing)
##       reward_length      < 7544     to the right, improve=0.02695852, (0 missing)
##       mo_launched        splits as  L--LL---RL-R, improve=0.01379942, (0 missing)
##       campaign_duration  < 34.24    to the left,  improve=0.01250131, (0 missing)
##       goal               < 725      to the left,  improve=0.01187894, (0 missing)
##   Surrogate splits:
##       goal              < 1225     to the right, agree=0.604, adj=0.147, (0 split)
##       mo_launched       splits as  L--RL---LL-L, agree=0.583, adj=0.101, (0 split)
##       reward_length     < 4182     to the right, agree=0.549, adj=0.028, (0 split)
##       campaign_duration < 29.895   to the right, agree=0.545, adj=0.018, (0 split)
##       category          splits as  ----L-L---L--R-, agree=0.540, adj=0.009, (0 split)
## 
## Node number 2003: 87 observations
##   mean=0.8735632, MSE=0.1104505 
## 
## Node number 2004: 34 observations,    complexity param=0.0001459807
##   mean=0.4705882, MSE=0.2491349 
##   left son=4008 (18 obs) right son=4009 (16 obs)
##   Primary splits:
##       reward_length      < 9854     to the left,  improve=0.16787230, (0 missing)
##       description_length < 624.5    to the right, improve=0.09642094, (0 missing)
##       mo_launched        splits as  ----L---R-LL, improve=0.08417508, (0 missing)
##       goal               < 3100     to the left,  improve=0.05209605, (0 missing)
##       social_media_count splits as  RLRR,         improve=0.04124579, (0 missing)
##   Surrogate splits:
##       description_length < 674.5    to the left,  agree=0.735, adj=0.438, (0 split)
##       campaign_duration  < 27.635   to the right, agree=0.647, adj=0.250, (0 split)
##       goal               < 3550     to the left,  agree=0.647, adj=0.250, (0 split)
##       social_media_count splits as  LLRR,         agree=0.618, adj=0.188, (0 split)
##       mo_launched        splits as  ----L---R-LR, agree=0.618, adj=0.188, (0 split)
## 
## Node number 2005: 44 observations,    complexity param=0.0001438023
##   mean=0.7954545, MSE=0.1627066 
##   left son=4010 (20 obs) right son=4011 (24 obs)
##   Primary splits:
##       social_media_count splits as  LRRR,         improve=0.19566140, (0 missing)
##       reward_length      < 10325    to the left,  improve=0.05082389, (0 missing)
##       description_length < 843      to the left,  improve=0.02857143, (0 missing)
##       campaign_duration  < 29.725   to the right, improve=0.02645503, (0 missing)
##       goal               < 1550     to the right, improve=0.01226783, (0 missing)
##   Surrogate splits:
##       goal               < 1250     to the left,  agree=0.636, adj=0.20, (0 split)
##       reward_length      < 9262.5   to the right, agree=0.636, adj=0.20, (0 split)
##       description_length < 590.5    to the left,  agree=0.614, adj=0.15, (0 split)
##       mo_launched        splits as  ----R---R-LR, agree=0.591, adj=0.10, (0 split)
##       campaign_duration  < 15.015   to the left,  agree=0.568, adj=0.05, (0 split)
## 
## Node number 2006: 7 observations
##   mean=0.4285714, MSE=0.244898 
## 
## Node number 2007: 174 observations
##   mean=0.8563218, MSE=0.1230347 
## 
## Node number 2010: 9 observations
##   mean=0.5555556, MSE=0.2469136 
## 
## Node number 2011: 18 observations
##   mean=1, MSE=0 
## 
## Node number 2016: 37 observations,    complexity param=0.0003228011
##   mean=0.4594595, MSE=0.2483565 
##   left son=4032 (27 obs) right son=4033 (10 obs)
##   Primary splits:
##       mo_launched        splits as  RLLLLLRLR-LL, improve=0.43572980, (0 missing)
##       campaign_duration  < 31.17    to the left,  improve=0.12591160, (0 missing)
##       reward_length      < 4151     to the right, improve=0.08479412, (0 missing)
##       goal               < 1750     to the left,  improve=0.07284080, (0 missing)
##       description_length < 1480.5   to the left,  improve=0.07284080, (0 missing)
##   Surrogate splits:
##       social_media_count splits as  LLLR, agree=0.757, adj=0.1, (0 split)
## 
## Node number 2017: 1417 observations,    complexity param=0.000262354
##   mean=0.7254764, MSE=0.1991604 
##   left son=4034 (710 obs) right son=4035 (707 obs)
##   Primary splits:
##       mo_launched        splits as  RRRRLLLLLRRL, improve=0.009055492, (0 missing)
##       reward_length      < 5565.5   to the left,  improve=0.003955870, (0 missing)
##       social_media_count splits as  LRLR,         improve=0.003459849, (0 missing)
##       goal               < 3604.5   to the right, improve=0.003377227, (0 missing)
##       campaign_duration  < 89.77    to the left,  improve=0.001500493, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 30.035   to the left,  agree=0.566, adj=0.130, (0 split)
##       social_media_count splits as  RLLL,         agree=0.535, adj=0.068, (0 split)
##       description_length < 1849.5   to the right, agree=0.533, adj=0.064, (0 split)
##       reward_length      < 6057.5   to the left,  agree=0.519, adj=0.035, (0 split)
##       goal               < 2006.5   to the right, agree=0.510, adj=0.017, (0 split)
## 
## Node number 2018: 50 observations,    complexity param=0.0002355625
##   mean=0.72, MSE=0.2016 
##   left son=4036 (23 obs) right son=4037 (27 obs)
##   Primary splits:
##       mo_launched        splits as  RLRRLLRRRRLL, improve=0.34373640, (0 missing)
##       reward_length      < 7947     to the left,  improve=0.12698410, (0 missing)
##       goal               < 425      to the left,  improve=0.04572940, (0 missing)
##       description_length < 1890.5   to the right, improve=0.03174603, (0 missing)
##       campaign_duration  < 44.23    to the right, improve=0.01907402, (0 missing)
##   Surrogate splits:
##       social_media_count splits as  RLRR, agree=0.64, adj=0.217, (0 split)
##       reward_length      < 7491.5   to the left,  agree=0.64, adj=0.217, (0 split)
##       description_length < 1712     to the left,  agree=0.60, adj=0.130, (0 split)
##       campaign_duration  < 30.02    to the right, agree=0.58, adj=0.087, (0 split)
##       category           splits as  ----------R--L-, agree=0.56, adj=0.043, (0 split)
## 
## Node number 2019: 142 observations
##   mean=0.8943662, MSE=0.0944753 
## 
## Node number 2020: 355 observations,    complexity param=0.0002008804
##   mean=0.715493, MSE=0.2035628 
##   left son=4040 (179 obs) right son=4041 (176 obs)
##   Primary splits:
##       reward_length      < 5649.5   to the right, improve=0.026650320, (0 missing)
##       goal               < 3250     to the right, improve=0.020993260, (0 missing)
##       social_media_count splits as  RRL-,         improve=0.012184570, (0 missing)
##       description_length < 1962.5   to the left,  improve=0.008007672, (0 missing)
##       campaign_duration  < 31.845   to the right, improve=0.007843021, (0 missing)
##   Surrogate splits:
##       description_length < 1628.5   to the right, agree=0.603, adj=0.199, (0 split)
##       mo_launched        splits as  --RLLRLLRL--, agree=0.569, adj=0.131, (0 split)
##       goal               < 1575     to the right, agree=0.546, adj=0.085, (0 split)
##       social_media_count splits as  RLL-,         agree=0.538, adj=0.068, (0 split)
##       campaign_duration  < 33.065   to the left,  agree=0.530, adj=0.051, (0 split)
## 
## Node number 2021: 186 observations,    complexity param=0.0001771349
##   mean=0.8387097, MSE=0.1352758 
##   left son=4042 (11 obs) right son=4043 (175 obs)
##   Primary splits:
##       description_length < 2137.5   to the right, improve=0.06857542, (0 missing)
##       reward_length      < 4804.5   to the left,  improve=0.03342312, (0 missing)
##       goal               < 2050     to the right, improve=0.02277094, (0 missing)
##       usa                < 0.5      to the left,  improve=0.02065197, (0 missing)
##       campaign_duration  < 74.74    to the right, improve=0.02065197, (0 missing)
##   Surrogate splits:
##       category splits as  -LR-R-R----R--R, agree=0.946, adj=0.091, (0 split)
## 
## Node number 2022: 96 observations,    complexity param=0.0001591987
##   mean=0.7291667, MSE=0.1974826 
##   left son=4044 (69 obs) right son=4045 (27 obs)
##   Primary splits:
##       description_length < 4496     to the left,  improve=0.07671073, (0 missing)
##       social_media_count splits as  RRLR,         improve=0.06379760, (0 missing)
##       mo_launched        splits as  LLLLRLLLRLLL, improve=0.06341463, (0 missing)
##       reward_length      < 8107.5   to the left,  improve=0.03598681, (0 missing)
##       usa                < 0.5      to the right, improve=0.01772894, (0 missing)
##   Surrogate splits:
##       category      splits as  ---RLLL--------, agree=0.729, adj=0.037, (0 split)
##       reward_length < 9031     to the left,  agree=0.729, adj=0.037, (0 split)
## 
## Node number 2023: 650 observations,    complexity param=0.0001591987
##   mean=0.8569231, MSE=0.1226059 
##   left son=4046 (608 obs) right son=4047 (42 obs)
##   Primary splits:
##       goal               < 520      to the right, improve=0.008014525, (0 missing)
##       reward_length      < 4529     to the left,  improve=0.007433408, (0 missing)
##       mo_launched        splits as  RLRRLRLLLRLL, improve=0.006206292, (0 missing)
##       description_length < 2264     to the right, improve=0.005547975, (0 missing)
##       category           splits as  -RRRLRL--R----R, improve=0.005300504, (0 missing)
## 
## Node number 2024: 101 observations,    complexity param=0.0001123551
##   mean=0.6633663, MSE=0.2233114 
##   left son=4048 (39 obs) right son=4049 (62 obs)
##   Primary splits:
##       social_media_count splits as  RLLR,         improve=0.04394608, (0 missing)
##       campaign_duration  < 60.02    to the left,  improve=0.04365270, (0 missing)
##       description_length < 3177     to the right, improve=0.03199331, (0 missing)
##       reward_length      < 11134    to the left,  improve=0.02146823, (0 missing)
##       mo_launched        splits as  ---LR-L-LLR-, improve=0.01500538, (0 missing)
##   Surrogate splits:
##       description_length < 1651     to the left,  agree=0.644, adj=0.077, (0 split)
##       goal               < 3650     to the right, agree=0.624, adj=0.026, (0 split)
##       reward_length      < 15957.5  to the right, agree=0.624, adj=0.026, (0 split)
## 
## Node number 2025: 373 observations,    complexity param=0.0001628544
##   mean=0.8042895, MSE=0.1574079 
##   left son=4050 (244 obs) right son=4051 (129 obs)
##   Primary splits:
##       social_media_count splits as  LRLL,         improve=0.030271120, (0 missing)
##       goal               < 1960     to the right, improve=0.020237720, (0 missing)
##       reward_length      < 15934.5  to the left,  improve=0.013166980, (0 missing)
##       campaign_duration  < 59.74    to the left,  improve=0.011119340, (0 missing)
##       description_length < 1150     to the right, improve=0.004653916, (0 missing)
##   Surrogate splits:
##       description_length < 3990     to the left,  agree=0.665, adj=0.031, (0 split)
##       campaign_duration  < 59.99    to the left,  agree=0.657, adj=0.008, (0 split)
## 
## Node number 2034: 41 observations,    complexity param=0.0001982897
##   mean=0.5853659, MSE=0.2427127 
##   left son=4068 (31 obs) right son=4069 (10 obs)
##   Primary splits:
##       mo_launched        splits as  -R-LLLLLRLRR, improve=0.22849460, (0 missing)
##       description_length < 5894.5   to the left,  improve=0.19921880, (0 missing)
##       campaign_duration  < 20.21    to the left,  improve=0.15098670, (0 missing)
##       goal               < 999.5    to the right, improve=0.08378825, (0 missing)
##       social_media_count splits as  RRL-,         improve=0.04420120, (0 missing)
##   Surrogate splits:
##       description_length < 6187     to the left,  agree=0.78, adj=0.1, (0 split)
## 
## Node number 2035: 195 observations
##   mean=0.825641, MSE=0.1439579 
## 
## Node number 2036: 44 observations,    complexity param=0.0001124323
##   mean=0.5909091, MSE=0.2417355 
##   left son=4072 (10 obs) right son=4073 (34 obs)
##   Primary splits:
##       mo_launched        splits as  -------R--RL, improve=0.10296630, (0 missing)
##       goal               < 3302.5   to the left,  improve=0.09445123, (0 missing)
##       reward_length      < 5632.5   to the left,  improve=0.04340308, (0 missing)
##       description_length < 1516.5   to the left,  improve=0.04285375, (0 missing)
##       campaign_duration  < 28.305   to the right, improve=0.04285375, (0 missing)
##   Surrogate splits:
##       social_media_count splits as  RRL-,         agree=0.818, adj=0.2, (0 split)
##       description_length < 3822.5   to the right, agree=0.795, adj=0.1, (0 split)
## 
## Node number 2037: 37 observations
##   mean=0.9459459, MSE=0.05113221 
## 
## Node number 2040: 90 observations,    complexity param=0.0001323152
##   mean=0.7222222, MSE=0.2006173 
##   left son=4080 (7 obs) right son=4081 (83 obs)
##   Primary splits:
##       category          splits as  --L-L-R---R--L-, improve=0.08010062, (0 missing)
##       campaign_duration < 24.995   to the right, improve=0.04350853, (0 missing)
##       mo_launched       splits as  ----R-R-L-R-, improve=0.02738211, (0 missing)
##       reward_length     < 7898     to the right, improve=0.02307692, (0 missing)
##       goal              < 925      to the right, improve=0.01969231, (0 missing)
##   Surrogate splits:
##       goal < 475      to the left,  agree=0.933, adj=0.143, (0 split)
## 
## Node number 2041: 179 observations
##   mean=0.877095, MSE=0.1077994 
## 
## Node number 2232: 21 observations
##   mean=0, MSE=0 
## 
## Node number 2233: 13 observations
##   mean=0.3846154, MSE=0.2366864 
## 
## Node number 2284: 19 observations
##   mean=0, MSE=0 
## 
## Node number 2285: 67 observations
##   mean=0.2985075, MSE=0.2094008 
## 
## Node number 2290: 41 observations
##   mean=0.2195122, MSE=0.1713266 
## 
## Node number 2291: 18 observations
##   mean=0.5, MSE=0.25 
## 
## Node number 2298: 80 observations,    complexity param=0.0001743257
##   mean=0.35, MSE=0.2275 
##   left son=4596 (44 obs) right son=4597 (36 obs)
##   Primary splits:
##       reward_length      < 3621.5   to the right, improve=0.08091908, (0 missing)
##       campaign_duration  < 28.12    to the right, improve=0.07778496, (0 missing)
##       mo_launched        splits as  R-RRLR---RRL, improve=0.05563187, (0 missing)
##       goal               < 5250     to the right, improve=0.04395604, (0 missing)
##       description_length < 2160     to the left,  improve=0.01518119, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  L-RRRL---LLL, agree=0.625, adj=0.167, (0 split)
##       goal               < 5250     to the right, agree=0.625, adj=0.167, (0 split)
##       campaign_duration  < 28.78    to the right, agree=0.588, adj=0.083, (0 split)
##       description_length < 2210.5   to the left,  agree=0.588, adj=0.083, (0 split)
##       social_media_count splits as  LLRR,         agree=0.575, adj=0.056, (0 split)
## 
## Node number 2299: 79 observations,    complexity param=0.000104793
##   mean=0.5443038, MSE=0.2480372 
##   left son=4598 (57 obs) right son=4599 (22 obs)
##   Primary splits:
##       mo_launched        splits as  L-LLRL---LLR, improve=0.05209377, (0 missing)
##       campaign_duration  < 30.49    to the left,  improve=0.03365850, (0 missing)
##       description_length < 3447.5   to the right, improve=0.03213905, (0 missing)
##       goal               < 5067     to the right, improve=0.02330177, (0 missing)
##       reward_length      < 4579     to the left,  improve=0.02149878, (0 missing)
##   Surrogate splits:
##       campaign_duration < 83.465   to the left,  agree=0.734, adj=0.045, (0 split)
##       category          splits as  L---------L--R-, agree=0.734, adj=0.045, (0 split)
## 
## Node number 2506: 26 observations,    complexity param=0.0001494703
##   mean=0.3846154, MSE=0.2366864 
##   left son=5012 (12 obs) right son=5013 (14 obs)
##   Primary splits:
##       mo_launched        splits as  R-LRLRLLL-R-, improve=0.32872020, (0 missing)
##       reward_length      < 4375     to the left,  improve=0.17794120, (0 missing)
##       description_length < 2389.5   to the left,  improve=0.09097744, (0 missing)
##       campaign_duration  < 41.475   to the left,  improve=0.08015152, (0 missing)
##       goal               < 15750    to the right, improve=0.01522556, (0 missing)
##   Surrogate splits:
##       reward_length      < 4345     to the left,  agree=0.731, adj=0.417, (0 split)
##       campaign_duration  < 38.5     to the left,  agree=0.692, adj=0.333, (0 split)
##       goal               < 8150     to the left,  agree=0.692, adj=0.333, (0 split)
##       description_length < 2286.5   to the left,  agree=0.654, adj=0.250, (0 split)
##       social_media_count splits as  LRR-,         agree=0.615, adj=0.167, (0 split)
## 
## Node number 2507: 31 observations,    complexity param=0.0001494703
##   mean=0.6451613, MSE=0.2289282 
##   left son=5014 (15 obs) right son=5015 (16 obs)
##   Primary splits:
##       description_length < 1956.5   to the left,  improve=0.24613640, (0 missing)
##       mo_launched        splits as  R-RLRLRRR-L-, improve=0.23725300, (0 missing)
##       reward_length      < 4210     to the right, improve=0.09818182, (0 missing)
##       campaign_duration  < 59.98    to the right, improve=0.05976732, (0 missing)
##       goal               < 8686.25  to the left,  improve=0.05976732, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 58.655   to the right, agree=0.645, adj=0.267, (0 split)
##       mo_launched        splits as  R-RLRLRRR-L-, agree=0.645, adj=0.267, (0 split)
##       reward_length      < 3808.5   to the left,  agree=0.645, adj=0.267, (0 split)
##       goal               < 12394.5  to the right, agree=0.613, adj=0.200, (0 split)
##       social_media_count splits as  RRL-,         agree=0.548, adj=0.067, (0 split)
## 
## Node number 2508: 13 observations
##   mean=0.3846154, MSE=0.2366864 
## 
## Node number 2509: 28 observations
##   mean=0.75, MSE=0.1875 
## 
## Node number 2522: 12 observations
##   mean=0.4166667, MSE=0.2430556 
## 
## Node number 2523: 9 observations
##   mean=1, MSE=0 
## 
## Node number 2524: 10 observations
##   mean=0.2, MSE=0.16 
## 
## Node number 2525: 33 observations
##   mean=0.6969697, MSE=0.2112029 
## 
## Node number 2526: 115 observations,    complexity param=0.0001117706
##   mean=0.7652174, MSE=0.1796597 
##   left son=5052 (15 obs) right son=5053 (100 obs)
##   Primary splits:
##       mo_launched        splits as  RRRRRRRLRLRR, improve=0.04489338, (0 missing)
##       campaign_duration  < 57.385   to the right, improve=0.03409091, (0 missing)
##       description_length < 2223.5   to the right, improve=0.02670035, (0 missing)
##       social_media_count splits as  RLL-,         improve=0.02548087, (0 missing)
##       reward_length      < 2562     to the left,  improve=0.01447010, (0 missing)
##   Surrogate splits:
##       campaign_duration < 17       to the left,  agree=0.878, adj=0.067, (0 split)
## 
## Node number 2527: 28 observations
##   mean=0.9285714, MSE=0.06632653 
## 
## Node number 2582: 21 observations
##   mean=0, MSE=0 
## 
## Node number 2583: 67 observations
##   mean=0.3432836, MSE=0.22544 
## 
## Node number 2586: 16 observations
##   mean=0, MSE=0 
## 
## Node number 2587: 269 observations,    complexity param=0.0001303732
##   mean=0.267658, MSE=0.1960172 
##   left son=5174 (84 obs) right son=5175 (185 obs)
##   Primary splits:
##       mo_launched        splits as  LLRRLRRRRRLR, improve=0.01838391, (0 missing)
##       description_length < 1921.5   to the left,  improve=0.01558258, (0 missing)
##       campaign_duration  < 59.545   to the right, improve=0.01529896, (0 missing)
##       usa                < 0.5      to the left,  improve=0.01411128, (0 missing)
##       category           splits as  L-------L---LR-, improve=0.01355264, (0 missing)
##   Surrogate splits:
##       campaign_duration < 17.28    to the left,  agree=0.691, adj=0.012, (0 split)
##       reward_length     < 11350    to the right, agree=0.691, adj=0.012, (0 split)
## 
## Node number 2588: 228 observations,    complexity param=0.0001009297
##   mean=0.2587719, MSE=0.191809 
##   left son=5176 (84 obs) right son=5177 (144 obs)
##   Primary splits:
##       mo_launched        splits as  RR--R-RL-LRL, improve=0.01418518, (0 missing)
##       reward_length      < 6941     to the left,  improve=0.01406892, (0 missing)
##       campaign_duration  < 59.98    to the right, improve=0.01380931, (0 missing)
##       goal               < 9999.5   to the left,  improve=0.01105786, (0 missing)
##       description_length < 2771     to the left,  improve=0.01046459, (0 missing)
##   Surrogate splits:
##       reward_length < 10180    to the right, agree=0.662, adj=0.083, (0 split)
##       category      splits as  R-------R---RL-, agree=0.645, adj=0.036, (0 split)
## 
## Node number 2589: 78 observations,    complexity param=0.000119573
##   mean=0.4102564, MSE=0.2419461 
##   left son=5178 (52 obs) right son=5179 (26 obs)
##   Primary splits:
##       reward_length     < 9502.5   to the left,  improve=0.05740489, (0 missing)
##       category          splits as  R-------L---RL-, improve=0.05326087, (0 missing)
##       mo_launched       splits as  LR--R-RL-RRR, improve=0.04350414, (0 missing)
##       goal              < 13177    to the left,  improve=0.03055713, (0 missing)
##       campaign_duration < 49.56    to the right, improve=0.01929965, (0 missing)
##   Surrogate splits:
##       goal               < 9875     to the right, agree=0.692, adj=0.077, (0 split)
##       description_length < 4512.5   to the left,  agree=0.679, adj=0.038, (0 split)
## 
## Node number 2590: 88 observations,    complexity param=0.0001487692
##   mean=0.3522727, MSE=0.2281767 
##   left son=5180 (31 obs) right son=5181 (57 obs)
##   Primary splits:
##       reward_length      < 6730     to the left,  improve=0.08693654, (0 missing)
##       goal               < 12237.5  to the right, improve=0.06170803, (0 missing)
##       mo_launched        splits as  --RL-L--R---, improve=0.04437971, (0 missing)
##       campaign_duration  < 47.71    to the right, improve=0.01660962, (0 missing)
##       description_length < 3073     to the left,  improve=0.01575671, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 24.08    to the left,  agree=0.670, adj=0.065, (0 split)
##       description_length < 2548.5   to the left,  agree=0.670, adj=0.065, (0 split)
##       mo_launched        splits as  --RR-L--R---, agree=0.659, adj=0.032, (0 split)
##       category           splits as  ------------RL-, agree=0.659, adj=0.032, (0 split)
##       goal               < 13309.5  to the right, agree=0.659, adj=0.032, (0 split)
## 
## Node number 2591: 80 observations,    complexity param=0.0001487692
##   mean=0.5125, MSE=0.2498437 
##   left son=5182 (65 obs) right son=5183 (15 obs)
##   Primary splits:
##       social_media_count splits as  LRLR,         improve=0.07634579, (0 missing)
##       reward_length      < 9197     to the right, improve=0.04366636, (0 missing)
##       description_length < 2223     to the left,  improve=0.02049170, (0 missing)
##       campaign_duration  < 44.89    to the left,  improve=0.02039915, (0 missing)
##       goal               < 14500    to the left,  improve=0.01955529, (0 missing)
## 
## Node number 2594: 20 observations
##   mean=0, MSE=0 
## 
## Node number 2595: 69 observations,    complexity param=0.0001145255
##   mean=0.2753623, MSE=0.1995379 
##   left son=5190 (12 obs) right son=5191 (57 obs)
##   Primary splits:
##       goal               < 172500   to the right, improve=0.08000000, (0 missing)
##       campaign_duration  < 42.79    to the right, improve=0.07206897, (0 missing)
##       description_length < 6691.5   to the left,  improve=0.04474532, (0 missing)
##       reward_length      < 6772.5   to the left,  improve=0.03420556, (0 missing)
##       mo_launched        splits as  R-LRL--LL---, improve=0.01649197, (0 missing)
## 
## Node number 2600: 109 observations
##   mean=0.1559633, MSE=0.1316388 
## 
## Node number 2601: 13 observations
##   mean=0.4615385, MSE=0.2485207 
## 
## Node number 2602: 41 observations
##   mean=0.195122, MSE=0.1570494 
## 
## Node number 2603: 78 observations
##   mean=0.4358974, MSE=0.2458909 
## 
## Node number 2604: 171 observations,    complexity param=0.0002064971
##   mean=0.380117, MSE=0.2356281 
##   left son=5208 (84 obs) right son=5209 (87 obs)
##   Primary splits:
##       campaign_duration < 30.28    to the left,  improve=0.04630846, (0 missing)
##       video_status      < 0.5      to the left,  improve=0.04627981, (0 missing)
##       usa               < 0.5      to the left,  improve=0.02821220, (0 missing)
##       reward_length     < 6257.5   to the left,  improve=0.02357596, (0 missing)
##       mo_launched       splits as  -R-L--L-LL-L, improve=0.01850537, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  -R-L--L-LL-R, agree=0.620, adj=0.226, (0 split)
##       reward_length      < 7012.5   to the left,  agree=0.567, adj=0.119, (0 split)
##       goal               < 14250    to the right, agree=0.550, adj=0.083, (0 split)
##       category           splits as  R-------L---R--, agree=0.544, adj=0.071, (0 split)
##       description_length < 5942     to the left,  agree=0.544, adj=0.071, (0 split)
## 
## Node number 2605: 23 observations
##   mean=0.7391304, MSE=0.1928166 
## 
## Node number 2616: 119 observations,    complexity param=0.0001486531
##   mean=0.3613445, MSE=0.2307747 
##   left son=5232 (103 obs) right son=5233 (16 obs)
##   Primary splits:
##       description_length < 5283     to the right, improve=0.04679163, (0 missing)
##       campaign_duration  < 39.56    to the right, improve=0.04454030, (0 missing)
##       goal               < 14500    to the right, improve=0.02170963, (0 missing)
##       reward_length      < 9768     to the right, improve=0.01494709, (0 missing)
##       social_media_count splits as  LRL-,         improve=0.01294102, (0 missing)
## 
## Node number 2617: 11 observations
##   mean=0.7272727, MSE=0.1983471 
## 
## Node number 2618: 15 observations
##   mean=0.2666667, MSE=0.1955556 
## 
## Node number 2619: 91 observations,    complexity param=0.0001210678
##   mean=0.5934066, MSE=0.2412752 
##   left son=5238 (52 obs) right son=5239 (39 obs)
##   Primary splits:
##       campaign_duration  < 30.215   to the left,  improve=0.04821488, (0 missing)
##       description_length < 5686     to the left,  improve=0.03249009, (0 missing)
##       social_media_count splits as  LRRL,         improve=0.03128128, (0 missing)
##       usa                < 0.5      to the right, improve=0.02402402, (0 missing)
##       goal               < 28750    to the right, improve=0.02207207, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  LR--L--L-R-L, agree=0.637, adj=0.154, (0 split)
##       description_length < 14790    to the left,  agree=0.615, adj=0.103, (0 split)
##       reward_length      < 7473.5   to the right, agree=0.615, adj=0.103, (0 split)
##       social_media_count splits as  LLLR,         agree=0.582, adj=0.026, (0 split)
##       video_status       < 0.5      to the right, agree=0.582, adj=0.026, (0 split)
## 
## Node number 2626: 69 observations
##   mean=0.173913, MSE=0.1436673 
## 
## Node number 2627: 7 observations
##   mean=0.7142857, MSE=0.2040816 
## 
## Node number 2658: 17 observations
##   mean=0.1176471, MSE=0.1038062 
## 
## Node number 2659: 327 observations,    complexity param=0.0001262147
##   mean=0.3608563, MSE=0.230639 
##   left son=5318 (267 obs) right son=5319 (60 obs)
##   Primary splits:
##       social_media_count splits as  LRR-,         improve=0.010908470, (0 missing)
##       description_length < 9555     to the left,  improve=0.008175388, (0 missing)
##       usa                < 0.5      to the left,  improve=0.007692439, (0 missing)
##       reward_length      < 6703     to the left,  improve=0.005724203, (0 missing)
##       campaign_duration  < 48.06    to the right, improve=0.005235656, (0 missing)
##   Surrogate splits:
##       description_length < 940.5    to the right, agree=0.82, adj=0.017, (0 split)
## 
## Node number 2660: 76 observations
##   mean=0.25, MSE=0.1875 
## 
## Node number 2661: 235 observations,    complexity param=0.0001762652
##   mean=0.4553191, MSE=0.2480036 
##   left son=5322 (8 obs) right son=5323 (227 obs)
##   Primary splits:
##       usa                < 0.5      to the left,  improve=0.02946035, (0 missing)
##       reward_length      < 5427.5   to the left,  improve=0.02771299, (0 missing)
##       goal               < 4997     to the right, improve=0.02558124, (0 missing)
##       description_length < 4508     to the right, improve=0.02165866, (0 missing)
##       campaign_duration  < 21.65    to the left,  improve=0.01807877, (0 missing)
## 
## Node number 2662: 7 observations
##   mean=0.1428571, MSE=0.122449 
## 
## Node number 2663: 80 observations,    complexity param=0.0001405671
##   mean=0.6, MSE=0.24 
##   left son=5326 (52 obs) right son=5327 (28 obs)
##   Primary splits:
##       campaign_duration  < 31.83    to the left,  improve=0.05048077, (0 missing)
##       description_length < 5849     to the right, improve=0.04659189, (0 missing)
##       reward_length      < 7064.5   to the left,  improve=0.03879218, (0 missing)
##       category           splits as  --------R---L--, improve=0.02750913, (0 missing)
##       goal               < 7225     to the left,  improve=0.01937046, (0 missing)
##   Surrogate splits:
##       social_media_count splits as  LLR-,         agree=0.675, adj=0.071, (0 split)
##       usa                < 0.5      to the right, agree=0.662, adj=0.036, (0 split)
##       mo_launched        splits as  -L-RL--LL-L-, agree=0.662, adj=0.036, (0 split)
##       goal               < 8562.5   to the left,  agree=0.662, adj=0.036, (0 split)
##       description_length < 5471.5   to the right, agree=0.662, adj=0.036, (0 split)
## 
## Node number 2664: 26 observations
##   mean=0.1153846, MSE=0.102071 
## 
## Node number 2665: 19 observations
##   mean=0.4210526, MSE=0.2437673 
## 
## Node number 2666: 23 observations
##   mean=0.2173913, MSE=0.1701323 
## 
## Node number 2667: 173 observations,    complexity param=0.0001481675
##   mean=0.5202312, MSE=0.2495907 
##   left son=5334 (7 obs) right son=5335 (166 obs)
##   Primary splits:
##       reward_length      < 8933     to the right, improve=0.02406056, (0 missing)
##       description_length < 4254     to the left,  improve=0.02271881, (0 missing)
##       goal               < 7900     to the left,  improve=0.02084466, (0 missing)
##       campaign_duration  < 20.195   to the left,  improve=0.01952671, (0 missing)
##       mo_launched        splits as  L-----RLRRRR, improve=0.01636223, (0 missing)
## 
## Node number 2668: 14 observations
##   mean=0.1428571, MSE=0.122449 
## 
## Node number 2669: 56 observations,    complexity param=0.0001480224
##   mean=0.5535714, MSE=0.2471301 
##   left son=5338 (47 obs) right son=5339 (9 obs)
##   Primary splits:
##       mo_launched        splits as  -LRLLL------, improve=0.08712270, (0 missing)
##       description_length < 892.5    to the right, improve=0.08712270, (0 missing)
##       campaign_duration  < 29.98    to the right, improve=0.07268817, (0 missing)
##       goal               < 7100     to the right, improve=0.07180698, (0 missing)
##       social_media_count splits as  RLL-,         improve=0.06215054, (0 missing)
##   Surrogate splits:
##       description_length < 740      to the right, agree=0.857, adj=0.111, (0 split)
## 
## Node number 2670: 118 observations,    complexity param=0.000101404
##   mean=0.6610169, MSE=0.2240735 
##   left son=5340 (91 obs) right son=5341 (27 obs)
##   Primary splits:
##       description_length < 5786     to the left,  improve=0.03132077, (0 missing)
##       social_media_count splits as  LRL-,         improve=0.02944083, (0 missing)
##       campaign_duration  < 59.98    to the left,  improve=0.02823454, (0 missing)
##       mo_launched        splits as  -LLRLR------, improve=0.02423077, (0 missing)
##       reward_length      < 5913     to the right, improve=0.01812130, (0 missing)
## 
## Node number 2671: 7 observations
##   mean=1, MSE=0 
## 
## Node number 2672: 26 observations
##   mean=0.1538462, MSE=0.1301775 
## 
## Node number 2673: 35 observations
##   mean=0.4285714, MSE=0.244898 
## 
## Node number 2674: 94 observations
##   mean=0.4574468, MSE=0.2481892 
## 
## Node number 2675: 9 observations
##   mean=0.8888889, MSE=0.09876543 
## 
## Node number 2686: 15 observations
##   mean=0.4666667, MSE=0.2488889 
## 
## Node number 2687: 179 observations,    complexity param=0.0001024705
##   mean=0.7374302, MSE=0.1936269 
##   left son=5374 (20 obs) right son=5375 (159 obs)
##   Primary splits:
##       campaign_duration  < 27.53    to the left,  improve=0.02282160, (0 missing)
##       mo_launched        splits as  LLRL---LLL--, improve=0.02132550, (0 missing)
##       description_length < 1915.5   to the right, improve=0.02106867, (0 missing)
##       social_media_count splits as  RLRL,         improve=0.01807126, (0 missing)
##       reward_length      < 11039.5  to the right, improve=0.01206357, (0 missing)
## 
## Node number 2722: 21 observations
##   mean=0.0952381, MSE=0.0861678 
## 
## Node number 2723: 65 observations,    complexity param=0.0001331054
##   mean=0.4, MSE=0.24 
##   left son=5446 (36 obs) right son=5447 (29 obs)
##   Primary splits:
##       campaign_duration  < 30.215   to the left,  improve=0.04613665, (0 missing)
##       reward_length      < 19075.5  to the right, improve=0.04003268, (0 missing)
##       goal               < 47500    to the left,  improve=0.03453136, (0 missing)
##       description_length < 15570    to the left,  improve=0.01997041, (0 missing)
##       social_media_count splits as  RRL-,         improve=0.01315789, (0 missing)
##   Surrogate splits:
##       description_length < 14882.5  to the left,  agree=0.692, adj=0.310, (0 split)
##       goal               < 52500    to the left,  agree=0.677, adj=0.276, (0 split)
##       social_media_count splits as  LLR-,         agree=0.615, adj=0.138, (0 split)
##       reward_length      < 13991.5  to the right, agree=0.615, adj=0.138, (0 split)
## 
## Node number 2724: 36 observations
##   mean=0.1388889, MSE=0.1195988 
## 
## Node number 2725: 22 observations,    complexity param=0.0001219481
##   mean=0.4545455, MSE=0.2479339 
##   left son=5450 (10 obs) right son=5451 (12 obs)
##   Primary splits:
##       reward_length      < 12292.5  to the left,  improve=0.21777780, (0 missing)
##       mo_launched        splits as  --L-RRLRR-L-, improve=0.18285710, (0 missing)
##       description_length < 5860     to the left,  improve=0.09642857, (0 missing)
##       goal               < 45000    to the right, improve=0.03333333, (0 missing)
##       social_media_count splits as  LRL-,         improve=0.02571429, (0 missing)
##   Surrogate splits:
##       description_length < 6426.5   to the right, agree=0.773, adj=0.5, (0 split)
##       mo_launched        splits as  --L-RRRRR-L-, agree=0.727, adj=0.4, (0 split)
##       social_media_count splits as  LRL-,         agree=0.682, adj=0.3, (0 split)
##       video_status       < 0.5      to the left,  agree=0.682, adj=0.3, (0 split)
##       campaign_duration  < 26.445   to the left,  agree=0.636, adj=0.2, (0 split)
## 
## Node number 2726: 58 observations,    complexity param=0.0001998927
##   mean=0.3103448, MSE=0.2140309 
##   left son=5452 (30 obs) right son=5453 (28 obs)
##   Primary splits:
##       reward_length      < 17237.5  to the left,  improve=0.15685190, (0 missing)
##       mo_launched        splits as  L-R-RLRRR-R-, improve=0.06176471, (0 missing)
##       description_length < 8918     to the right, improve=0.05347222, (0 missing)
##       goal               < 375000   to the left,  improve=0.05159990, (0 missing)
##       campaign_duration  < 31.53    to the left,  improve=0.02784091, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  R-L-LLLRR-L-, agree=0.638, adj=0.250, (0 split)
##       goal               < 154500   to the right, agree=0.621, adj=0.214, (0 split)
##       campaign_duration  < 30.03    to the left,  agree=0.586, adj=0.143, (0 split)
##       description_length < 8276.5   to the right, agree=0.586, adj=0.143, (0 split)
##       social_media_count splits as  LRR-,         agree=0.569, adj=0.107, (0 split)
## 
## Node number 2727: 106 observations,    complexity param=0.0001451602
##   mean=0.5566038, MSE=0.246796 
##   left son=5454 (53 obs) right son=5455 (53 obs)
##   Primary splits:
##       mo_launched        splits as  R-R-RLLLL-R-, improve=0.04363505, (0 missing)
##       reward_length      < 20513.5  to the left,  improve=0.04151016, (0 missing)
##       campaign_duration  < 32.005   to the left,  improve=0.03616506, (0 missing)
##       description_length < 7365     to the right, improve=0.02587776, (0 missing)
##       category           splits as  L-------R---L--, improve=0.02310989, (0 missing)
##   Surrogate splits:
##       reward_length      < 19881.5  to the left,  agree=0.594, adj=0.189, (0 split)
##       goal               < 35250    to the right, agree=0.566, adj=0.132, (0 split)
##       description_length < 11401    to the left,  agree=0.566, adj=0.132, (0 split)
##       category           splits as  R-------L---L--, agree=0.547, adj=0.094, (0 split)
##       usa                < 0.5      to the right, agree=0.528, adj=0.057, (0 split)
## 
## Node number 2736: 23 observations
##   mean=0.173913, MSE=0.1436673 
## 
## Node number 2737: 34 observations,    complexity param=0.0001498951
##   mean=0.5, MSE=0.25 
##   left son=5474 (19 obs) right son=5475 (15 obs)
##   Primary splits:
##       mo_launched        splits as  RL--R-L-RLL-, improve=0.17192980, (0 missing)
##       reward_length      < 34383    to the right, improve=0.12857140, (0 missing)
##       category           splits as  L-------R---LR-, improve=0.07692308, (0 missing)
##       description_length < 12183.5  to the right, improve=0.06060606, (0 missing)
##       goal               < 47500    to the left,  improve=0.04761905, (0 missing)
##   Surrogate splits:
##       reward_length      < 33521.5  to the right, agree=0.706, adj=0.333, (0 split)
##       goal               < 387242   to the left,  agree=0.676, adj=0.267, (0 split)
##       description_length < 13487.5  to the left,  agree=0.647, adj=0.200, (0 split)
##       category           splits as  L-------L---LR-, agree=0.618, adj=0.133, (0 split)
##       campaign_duration  < 30.02    to the right, agree=0.588, adj=0.067, (0 split)
## 
## Node number 2752: 45 observations
##   mean=0.1555556, MSE=0.131358 
## 
## Node number 2753: 14 observations
##   mean=0.6428571, MSE=0.2295918 
## 
## Node number 2754: 152 observations,    complexity param=0.0001496983
##   mean=0.3947368, MSE=0.2389197 
##   left son=5508 (114 obs) right son=5509 (38 obs)
##   Primary splits:
##       mo_launched        splits as  -LRLRLLL-LL-, improve=0.04734300, (0 missing)
##       goal               < 7900     to the left,  improve=0.04438443, (0 missing)
##       description_length < 3481     to the left,  improve=0.02000914, (0 missing)
##       category           splits as  R-----------L--, improve=0.01825967, (0 missing)
##       usa                < 0.5      to the left,  improve=0.01117779, (0 missing)
##   Surrogate splits:
##       description_length < 1046.5   to the right, agree=0.763, adj=0.053, (0 split)
##       social_media_count splits as  LLLR,         agree=0.757, adj=0.026, (0 split)
## 
## Node number 2755: 100 observations,    complexity param=0.0001496983
##   mean=0.51, MSE=0.2499 
##   left son=5510 (23 obs) right son=5511 (77 obs)
##   Primary splits:
##       social_media_count splits as  RLR-,         improve=0.07418642, (0 missing)
##       mo_launched        splits as  -RLRLRRR-LR-, improve=0.05204729, (0 missing)
##       reward_length      < 11944.5  to the right, improve=0.02334785, (0 missing)
##       campaign_duration  < 32.245   to the left,  improve=0.02225746, (0 missing)
##       description_length < 3796     to the left,  improve=0.01264906, (0 missing)
##   Surrogate splits:
##       reward_length < 11573    to the left,  agree=0.78, adj=0.043, (0 split)
## 
## Node number 2758: 15 observations
##   mean=0.4666667, MSE=0.2488889 
## 
## Node number 2759: 33 observations
##   mean=0.8181818, MSE=0.1487603 
## 
## Node number 2760: 8 observations
##   mean=0.125, MSE=0.109375 
## 
## Node number 2761: 14 observations
##   mean=0.5714286, MSE=0.244898 
## 
## Node number 2762: 16 observations
##   mean=0.5625, MSE=0.2460938 
## 
## Node number 2763: 9 observations
##   mean=1, MSE=0 
## 
## Node number 2770: 178 observations,    complexity param=0.0001362407
##   mean=0.505618, MSE=0.2499684 
##   left son=5540 (27 obs) right son=5541 (151 obs)
##   Primary splits:
##       description_length < 10453.5  to the right, improve=0.03134224, (0 missing)
##       reward_length      < 17274.5  to the right, improve=0.01821775, (0 missing)
##       goal               < 17750    to the right, improve=0.01722639, (0 missing)
##       campaign_duration  < 50.74    to the right, improve=0.01226330, (0 missing)
##       category           splits as  R-----------L--, improve=0.01205742, (0 missing)
##   Surrogate splits:
##       reward_length < 21441    to the right, agree=0.871, adj=0.148, (0 split)
## 
## Node number 2771: 61 observations,    complexity param=0.0001244094
##   mean=0.6721311, MSE=0.2203709 
##   left son=5542 (9 obs) right son=5543 (52 obs)
##   Primary splits:
##       campaign_duration  < 41.47    to the right, improve=0.09015009, (0 missing)
##       category           splits as  L-----------R--, improve=0.08721160, (0 missing)
##       goal               < 5625     to the right, improve=0.05605543, (0 missing)
##       mo_launched        splits as  --LRRR-R-RLR, improve=0.04364723, (0 missing)
##       description_length < 13187    to the left,  improve=0.02887838, (0 missing)
##   Surrogate splits:
##       reward_length < 56791    to the right, agree=0.885, adj=0.222, (0 split)
##       mo_launched   splits as  --RRRR-R-RRL, agree=0.869, adj=0.111, (0 split)
## 
## Node number 2776: 16 observations
##   mean=0.1875, MSE=0.1523438 
## 
## Node number 2777: 43 observations,    complexity param=0.0001625835
##   mean=0.7209302, MSE=0.2011898 
##   left son=5554 (7 obs) right son=5555 (36 obs)
##   Primary splits:
##       campaign_duration  < 40.78    to the right, improve=0.18306240, (0 missing)
##       description_length < 6689.5   to the left,  improve=0.17878730, (0 missing)
##       reward_length      < 12361.5  to the left,  improve=0.05545315, (0 missing)
##       mo_launched        splits as  LR----R-R---, improve=0.05261028, (0 missing)
##       goal               < 14250    to the right, improve=0.02710573, (0 missing)
## 
## Node number 2784: 156 observations,    complexity param=0.0001680759
##   mean=0.4551282, MSE=0.2479865 
##   left son=5568 (106 obs) right son=5569 (50 obs)
##   Primary splits:
##       mo_launched        splits as  LRLLRRLLRLLL, improve=0.03992121, (0 missing)
##       social_media_count splits as  RRL-,         improve=0.03924201, (0 missing)
##       campaign_duration  < 32.09    to the left,  improve=0.03524502, (0 missing)
##       usa                < 0.5      to the left,  improve=0.02631533, (0 missing)
##       reward_length      < 11625.5  to the right, improve=0.01895251, (0 missing)
##   Surrogate splits:
##       video_status < 0.5      to the right, agree=0.686, adj=0.02, (0 split)
## 
## Node number 2785: 21 observations,    complexity param=0.0001875995
##   mean=0.7619048, MSE=0.1814059 
##   left son=5570 (8 obs) right son=5571 (13 obs)
##   Primary splits:
##       mo_launched        splits as  --LRRLRRRRRL, improve=0.5078125, (0 missing)
##       campaign_duration  < 28.355   to the left,  improve=0.1562500, (0 missing)
##       goal               < 15500    to the right, improve=0.1313636, (0 missing)
##       description_length < 6981.5   to the left,  improve=0.1313636, (0 missing)
##       reward_length      < 13012    to the right, improve=0.0250000, (0 missing)
##   Surrogate splits:
##       reward_length      < 12689.5  to the left,  agree=0.762, adj=0.375, (0 split)
##       description_length < 4035.5   to the left,  agree=0.714, adj=0.250, (0 split)
## 
## Node number 2792: 8 observations
##   mean=0.125, MSE=0.109375 
## 
## Node number 2793: 52 observations,    complexity param=0.0001225609
##   mean=0.5576923, MSE=0.2466716 
##   left son=5586 (43 obs) right son=5587 (9 obs)
##   Primary splits:
##       social_media_count splits as  LRL-,         improve=0.09307362, (0 missing)
##       description_length < 3002     to the right, improve=0.07421289, (0 missing)
##       mo_launched        splits as  -LL--R-L-R--, improve=0.06663335, (0 missing)
##       goal               < 9250     to the right, improve=0.06013660, (0 missing)
##       reward_length      < 15245    to the right, improve=0.04095846, (0 missing)
## 
## Node number 2794: 10 observations
##   mean=0.4, MSE=0.24 
## 
## Node number 2795: 54 observations
##   mean=0.8518519, MSE=0.1262003 
## 
## Node number 2808: 7 observations
##   mean=0.1428571, MSE=0.122449 
## 
## Node number 2809: 16 observations
##   mean=0.75, MSE=0.1875 
## 
## Node number 2852: 45 observations,    complexity param=0.0001089235
##   mean=0.1111111, MSE=0.09876543 
##   left son=5704 (32 obs) right son=5705 (13 obs)
##   Primary splits:
##       campaign_duration  < 58.665   to the left,  improve=0.30769230, (0 missing)
##       social_media_count splits as  LRL-,         improve=0.05686090, (0 missing)
##       goal               < 64000    to the right, improve=0.04222973, (0 missing)
##       reward_length      < 8625     to the left,  improve=0.03125000, (0 missing)
##       description_length < 6488.5   to the right, improve=0.01680672, (0 missing)
##   Surrogate splits:
##       description_length < 5000     to the right, agree=0.756, adj=0.154, (0 split)
## 
## Node number 2853: 13 observations
##   mean=0.3846154, MSE=0.2366864 
## 
## Node number 2950: 28 observations
##   mean=0.1428571, MSE=0.122449 
## 
## Node number 2951: 35 observations,    complexity param=0.0001936838
##   mean=0.5714286, MSE=0.244898 
##   left son=5902 (12 obs) right son=5903 (23 obs)
##   Primary splits:
##       campaign_duration  < 32.755   to the right, improve=0.22010870, (0 missing)
##       social_media_count splits as  LRLR, improve=0.17633330, (0 missing)
##       description_length < 1547     to the left,  improve=0.11149690, (0 missing)
##       mo_launched        splits as  --R--RL-L---, improve=0.06167763, (0 missing)
##       category           splits as  ------L---R----, improve=0.04632675, (0 missing)
##   Surrogate splits:
##       social_media_count splits as  RRLR,         agree=0.686, adj=0.083, (0 split)
##       mo_launched        splits as  --R--RL-R---, agree=0.686, adj=0.083, (0 split)
##       description_length < 1645     to the right, agree=0.686, adj=0.083, (0 split)
## 
## Node number 2992: 230 observations,    complexity param=0.0001341032
##   mean=0.3565217, MSE=0.229414 
##   left son=5984 (23 obs) right son=5985 (207 obs)
##   Primary splits:
##       social_media_count splits as  RRLL,         improve=0.02475646, (0 missing)
##       campaign_duration  < 50.62    to the right, improve=0.01615082, (0 missing)
##       reward_length      < 6918     to the left,  improve=0.01076096, (0 missing)
##       goal               < 17750    to the right, improve=0.01069097, (0 missing)
##       description_length < 857.5    to the left,  improve=0.01041269, (0 missing)
##   Surrogate splits:
##       campaign_duration < 16.245   to the left,  agree=0.904, adj=0.043, (0 split)
## 
## Node number 2993: 180 observations,    complexity param=0.0002304778
##   mean=0.5055556, MSE=0.2499691 
##   left son=5986 (56 obs) right son=5987 (124 obs)
##   Primary splits:
##       reward_length      < 5937     to the left,  improve=0.04994671, (0 missing)
##       goal               < 11543.5  to the right, improve=0.02788268, (0 missing)
##       campaign_duration  < 21.005   to the right, improve=0.02000930, (0 missing)
##       description_length < 1805.5   to the left,  improve=0.01707442, (0 missing)
##       category           splits as  ------R---L----, improve=0.01232130, (0 missing)
##   Surrogate splits:
##       goal < 15250    to the right, agree=0.711, adj=0.071, (0 split)
## 
## Node number 2996: 119 observations,    complexity param=0.0001587067
##   mean=0.3781513, MSE=0.2351529 
##   left son=5992 (60 obs) right son=5993 (59 obs)
##   Primary splits:
##       goal               < 5050     to the right, improve=0.053750020, (0 missing)
##       reward_length      < 6739     to the right, improve=0.024461240, (0 missing)
##       description_length < 950      to the right, improve=0.014714710, (0 missing)
##       campaign_duration  < 43.795   to the right, improve=0.011622520, (0 missing)
##       social_media_count splits as  LRRL,         improve=0.005896806, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  L-RL--LL---L, agree=0.597, adj=0.186, (0 split)
##       reward_length      < 5349     to the left,  agree=0.580, adj=0.153, (0 split)
##       category           splits as  ----L-L---R----, agree=0.571, adj=0.136, (0 split)
##       social_media_count splits as  RRLL, agree=0.563, adj=0.119, (0 split)
##       description_length < 895.5    to the right, agree=0.563, adj=0.119, (0 split)
## 
## Node number 2997: 130 observations,    complexity param=0.0002013969
##   mean=0.5615385, MSE=0.246213 
##   left son=5994 (9 obs) right son=5995 (121 obs)
##   Primary splits:
##       reward_length      < 5017.5   to the left,  improve=0.061290850, (0 missing)
##       campaign_duration  < 36.94    to the right, improve=0.041011730, (0 missing)
##       description_length < 330.5    to the left,  improve=0.035353870, (0 missing)
##       goal               < 7999.5   to the left,  improve=0.006488825, (0 missing)
##       mo_launched        splits as  -R--RR--RRL-, improve=0.003482472, (0 missing)
## 
## Node number 2998: 611 observations,    complexity param=0.0002390147
##   mean=0.594108, MSE=0.2411437 
##   left son=5996 (400 obs) right son=5997 (211 obs)
##   Primary splits:
##       reward_length      < 7442.5   to the left,  improve=0.012023570, (0 missing)
##       mo_launched        splits as  RRRLRLLRRLRL, improve=0.011555100, (0 missing)
##       category           splits as  ------R---L----, improve=0.005278974, (0 missing)
##       description_length < 1809     to the right, improve=0.004531106, (0 missing)
##       campaign_duration  < 13.73    to the right, improve=0.004340857, (0 missing)
##   Surrogate splits:
##       social_media_count splits as  LLRR,         agree=0.676, adj=0.062, (0 split)
##       goal               < 4472     to the right, agree=0.656, adj=0.005, (0 split)
##       description_length < 1884.5   to the left,  agree=0.656, adj=0.005, (0 split)
## 
## Node number 2999: 27 observations
##   mean=0.9259259, MSE=0.06858711 
## 
## Node number 3000: 25 observations,    complexity param=0.0001096348
##   mean=0.24, MSE=0.1824 
##   left son=6000 (18 obs) right son=6001 (7 obs)
##   Primary splits:
##       description_length < 669      to the right, improve=0.23419660, (0 missing)
##       social_media_count splits as  RLRL,         improve=0.09575074, (0 missing)
##       goal               < 11000    to the right, improve=0.03412023, (0 missing)
##       reward_length      < 12706.5  to the right, improve=0.02721547, (0 missing)
##       campaign_duration  < 31.04    to the right, improve=0.01315789, (0 missing)
## 
## Node number 3001: 8 observations
##   mean=0.75, MSE=0.1875 
## 
## Node number 3002: 114 observations,    complexity param=0.000149019
##   mean=0.5614035, MSE=0.2462296 
##   left son=6004 (66 obs) right son=6005 (48 obs)
##   Primary splits:
##       mo_launched        splits as  R-L-RLRRLLLR, improve=0.03272727, (0 missing)
##       campaign_duration  < 29.56    to the right, improve=0.02860804, (0 missing)
##       description_length < 37       to the right, improve=0.02323765, (0 missing)
##       goal               < 6750     to the left,  improve=0.01593769, (0 missing)
##       reward_length      < 10216    to the right, improve=0.01485749, (0 missing)
##   Surrogate splits:
##       description_length < 965.5    to the left,  agree=0.605, adj=0.062, (0 split)
##       category           splits as  --R-L-L---LR---, agree=0.596, adj=0.042, (0 split)
##       reward_length      < 17262.5  to the left,  agree=0.596, adj=0.042, (0 split)
##       campaign_duration  < 59.995   to the left,  agree=0.588, adj=0.021, (0 split)
##       goal               < 15500    to the left,  agree=0.588, adj=0.021, (0 split)
## 
## Node number 3003: 56 observations,    complexity param=0.0001330918
##   mean=0.7678571, MSE=0.1782526 
##   left son=6006 (21 obs) right son=6007 (35 obs)
##   Primary splits:
##       mo_launched        splits as  R-L-LRRLRRRL, improve=0.12987480, (0 missing)
##       social_media_count splits as  LLRL,         improve=0.06572295, (0 missing)
##       campaign_duration  < 30.695   to the right, improve=0.04308289, (0 missing)
##       description_length < 849.5    to the left,  improve=0.03492181, (0 missing)
##       reward_length      < 10511    to the right, improve=0.02735404, (0 missing)
##   Surrogate splits:
##       category           splits as  ----R-L---R----, agree=0.696, adj=0.190, (0 split)
##       description_length < 529      to the left,  agree=0.661, adj=0.095, (0 split)
##       reward_length      < 9805     to the left,  agree=0.661, adj=0.095, (0 split)
##       campaign_duration  < 48.2     to the right, agree=0.643, adj=0.048, (0 split)
##       social_media_count splits as  RRRL, agree=0.643, adj=0.048, (0 split)
## 
## Node number 3004: 7 observations
##   mean=0.1428571, MSE=0.122449 
## 
## Node number 3005: 48 observations,    complexity param=0.0001866282
##   mean=0.625, MSE=0.234375 
##   left son=6010 (32 obs) right son=6011 (16 obs)
##   Primary splits:
##       reward_length     < 11222.5  to the right, improve=0.20833330, (0 missing)
##       campaign_duration < 24.935   to the left,  improve=0.12000000, (0 missing)
##       mo_launched       splits as  RLLRRLLLRLLR, improve=0.11326600, (0 missing)
##       goal              < 13750    to the left,  improve=0.05333333, (0 missing)
##       category          splits as  ------R---L----, improve=0.04537815, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  RLLLLLLLLLLR, agree=0.708, adj=0.125, (0 split)
##       description_length < 1309     to the right, agree=0.708, adj=0.125, (0 split)
##       campaign_duration  < 59.705   to the left,  agree=0.688, adj=0.063, (0 split)
## 
## Node number 3006: 166 observations,    complexity param=0.0001545966
##   mean=0.6807229, MSE=0.2173392 
##   left son=6012 (114 obs) right son=6013 (52 obs)
##   Primary splits:
##       reward_length      < 11022    to the right, improve=0.03383441, (0 missing)
##       social_media_count splits as  LRLL,         improve=0.02089645, (0 missing)
##       campaign_duration  < 29.155   to the right, improve=0.01607001, (0 missing)
##       description_length < 1837     to the right, improve=0.01201894, (0 missing)
##       goal               < 4650     to the right, improve=0.01142942, (0 missing)
##   Surrogate splits:
##       description_length < 1863.5   to the left,  agree=0.723, adj=0.115, (0 split)
##       campaign_duration  < 19.115   to the right, agree=0.711, adj=0.077, (0 split)
##       goal               < 4950     to the right, agree=0.705, adj=0.058, (0 split)
## 
## Node number 3007: 162 observations,    complexity param=0.0001262203
##   mean=0.8271605, MSE=0.142966 
##   left son=6014 (23 obs) right son=6015 (139 obs)
##   Primary splits:
##       campaign_duration  < 59.64    to the right, improve=0.035439670, (0 missing)
##       goal               < 6065.95  to the right, improve=0.028227460, (0 missing)
##       description_length < 1179     to the left,  improve=0.018549210, (0 missing)
##       category           splits as  --R-RRL---R----, improve=0.015929910, (0 missing)
##       reward_length      < 15939    to the left,  improve=0.009577031, (0 missing)
##   Surrogate splits:
##       reward_length < 9746     to the left,  agree=0.877, adj=0.13, (0 split)
## 
## Node number 3008: 62 observations,    complexity param=0.0001314054
##   mean=0.1451613, MSE=0.1240895 
##   left son=6016 (51 obs) right son=6017 (11 obs)
##   Primary splits:
##       reward_length      < 13415.5  to the left,  improve=0.16637330, (0 missing)
##       mo_launched        splits as  RRRLRLLLRLRR, improve=0.13099730, (0 missing)
##       goal               < 44000    to the right, improve=0.05419510, (0 missing)
##       description_length < 3579.5   to the right, improve=0.03927226, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.02161235, (0 missing)
## 
## Node number 3009: 229 observations,    complexity param=0.0002572943
##   mean=0.3624454, MSE=0.2310787 
##   left son=6018 (106 obs) right son=6019 (123 obs)
##   Primary splits:
##       reward_length      < 8833.5   to the left,  improve=0.05119379, (0 missing)
##       mo_launched        splits as  LRLRRRRRLRRL, improve=0.03799627, (0 missing)
##       social_media_count splits as  LLRL,         improve=0.02240885, (0 missing)
##       goal               < 48500    to the right, improve=0.02151380, (0 missing)
##       description_length < 4201     to the left,  improve=0.02015596, (0 missing)
##   Surrogate splits:
##       description_length < 2815     to the left,  agree=0.633, adj=0.208, (0 split)
##       mo_launched        splits as  LRRLRLRRLRRR, agree=0.603, adj=0.142, (0 split)
##       campaign_duration  < 59.995   to the right, agree=0.568, adj=0.066, (0 split)
##       goal               < 28825    to the left,  agree=0.555, adj=0.038, (0 split)
##       social_media_count splits as  LRRL,         agree=0.550, adj=0.028, (0 split)
## 
## Node number 3010: 255 observations,    complexity param=0.0003110854
##   mean=0.4, MSE=0.24 
##   left son=6020 (203 obs) right son=6021 (52 obs)
##   Primary splits:
##       social_media_count splits as  LLRR,         improve=0.04951370, (0 missing)
##       reward_length      < 13686.5  to the left,  improve=0.03950617, (0 missing)
##       mo_launched        splits as  LLLLLLLLLLRR, improve=0.03074218, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.02216312, (0 missing)
##       description_length < 2037     to the left,  improve=0.01487065, (0 missing)
## 
## Node number 3011: 520 observations,    complexity param=0.0002660963
##   mean=0.5557692, MSE=0.2468898 
##   left son=6022 (327 obs) right son=6023 (193 obs)
##   Primary splits:
##       mo_launched        splits as  LRRLLLLRLRLR, improve=0.02018968, (0 missing)
##       campaign_duration  < 45.025   to the right, improve=0.01803995, (0 missing)
##       description_length < 2956.5   to the left,  improve=0.01592248, (0 missing)
##       goal               < 15660    to the right, improve=0.01460587, (0 missing)
##       social_media_count splits as  RRLR,         improve=0.01311946, (0 missing)
##   Surrogate splits:
##       video_status      < 0.5      to the right, agree=0.633, adj=0.010, (0 split)
##       reward_length     < 4870     to the right, agree=0.633, adj=0.010, (0 split)
##       campaign_duration < 90.48    to the left,  agree=0.631, adj=0.005, (0 split)
## 
## Node number 3012: 51 observations,    complexity param=0.0001302223
##   mean=0.4509804, MSE=0.2475971 
##   left son=6024 (12 obs) right son=6025 (39 obs)
##   Primary splits:
##       description_length < 2680     to the left,  improve=0.10045390, (0 missing)
##       goal               < 49000    to the right, improve=0.05019709, (0 missing)
##       mo_launched        splits as  ----L-RR-L-L, improve=0.04101597, (0 missing)
##       reward_length      < 25131    to the left,  improve=0.03737060, (0 missing)
##       category           splits as  ------L---R----, improve=0.03734566, (0 missing)
## 
## Node number 3013: 57 observations,    complexity param=0.0002063242
##   mean=0.7368421, MSE=0.1939058 
##   left son=6026 (22 obs) right son=6027 (35 obs)
##   Primary splits:
##       campaign_duration  < 33.035   to the right, improve=0.18183670, (0 missing)
##       description_length < 3807.5   to the right, improve=0.08376144, (0 missing)
##       social_media_count splits as  LLRR,         improve=0.03104308, (0 missing)
##       reward_length      < 19070    to the left,  improve=0.02517422, (0 missing)
##       mo_launched        splits as  ----L-RR-R-L, improve=0.01766807, (0 missing)
##   Surrogate splits:
##       reward_length      < 19332    to the left,  agree=0.684, adj=0.182, (0 split)
##       mo_launched        splits as  ----L-RR-R-L, agree=0.667, adj=0.136, (0 split)
##       video_status       < 0.5      to the left,  agree=0.649, adj=0.091, (0 split)
##       goal               < 14731    to the left,  agree=0.649, adj=0.091, (0 split)
##       social_media_count splits as  RRLR,         agree=0.632, adj=0.045, (0 split)
## 
## Node number 3014: 9 observations
##   mean=0.4444444, MSE=0.2469136 
## 
## Node number 3015: 106 observations,    complexity param=0.0001021543
##   mean=0.8301887, MSE=0.1409754 
##   left son=6030 (11 obs) right son=6031 (95 obs)
##   Primary splits:
##       goal               < 42500    to the right, improve=0.06658934, (0 missing)
##       mo_launched        splits as  LRLL-L--L-L-, improve=0.04467085, (0 missing)
##       reward_length      < 33167.5  to the left,  improve=0.03112648, (0 missing)
##       description_length < 2610.5   to the right, improve=0.03112648, (0 missing)
##       campaign_duration  < 52.715   to the right, improve=0.02567515, (0 missing)
##   Surrogate splits:
##       description_length < 1977     to the left,  agree=0.915, adj=0.182, (0 split)
## 
## Node number 3016: 36 observations,    complexity param=0.0001696791
##   mean=0.3055556, MSE=0.2121914 
##   left son=6032 (23 obs) right son=6033 (13 obs)
##   Primary splits:
##       description_length < 6296.5   to the right, improve=0.25570080, (0 missing)
##       mo_launched        splits as  RRLLLLLRRRRL, improve=0.16923080, (0 missing)
##       social_media_count splits as  LRRR,         improve=0.03272727, (0 missing)
##       goal               < 16750    to the right, improve=0.03030303, (0 missing)
##       campaign_duration  < 44.24    to the left,  improve=0.03011196, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  RLLLLLLRLRLL, agree=0.833, adj=0.538, (0 split)
##       social_media_count splits as  LLRL,         agree=0.667, adj=0.077, (0 split)
##       reward_length      < 8086.5   to the right, agree=0.667, adj=0.077, (0 split)
## 
## Node number 3017: 52 observations,    complexity param=0.0001302149
##   mean=0.5576923, MSE=0.2466716 
##   left son=6034 (27 obs) right son=6035 (25 obs)
##   Primary splits:
##       mo_launched        splits as  R-LRLRLLRRLL, improve=0.09888611, (0 missing)
##       goal               < 20500    to the right, improve=0.06013660, (0 missing)
##       campaign_duration  < 30.02    to the left,  improve=0.04580437, (0 missing)
##       description_length < 5880.5   to the right, improve=0.04497751, (0 missing)
##       reward_length      < 19285.5  to the left,  improve=0.02448776, (0 missing)
##   Surrogate splits:
##       reward_length      < 11441.5  to the right, agree=0.635, adj=0.24, (0 split)
##       social_media_count splits as  LRRL,         agree=0.615, adj=0.20, (0 split)
##       campaign_duration  < 29.745   to the left,  agree=0.577, adj=0.12, (0 split)
##       goal               < 19450    to the left,  agree=0.558, adj=0.08, (0 split)
##       description_length < 5542     to the right, agree=0.558, adj=0.08, (0 split)
## 
## Node number 3020: 33 observations,    complexity param=0.0001211865
##   mean=0.3636364, MSE=0.231405 
##   left son=6040 (9 obs) right son=6041 (24 obs)
##   Primary splits:
##       campaign_duration  < 42.95    to the right, improve=0.10333990, (0 missing)
##       social_media_count splits as  RRL-,         improve=0.07875000, (0 missing)
##       reward_length      < 6782.5   to the right, improve=0.07875000, (0 missing)
##       mo_launched        splits as  --L-LLRRL-R-, improve=0.05252101, (0 missing)
##       description_length < 9512     to the left,  improve=0.05023548, (0 missing)
##   Surrogate splits:
##       goal               < 40000    to the right, agree=0.788, adj=0.222, (0 split)
##       description_length < 11182.5  to the right, agree=0.758, adj=0.111, (0 split)
## 
## Node number 3021: 12 observations
##   mean=0.75, MSE=0.1875 
## 
## Node number 3022: 377 observations,    complexity param=0.0002061482
##   mean=0.7108753, MSE=0.2055316 
##   left son=6044 (153 obs) right son=6045 (224 obs)
##   Primary splits:
##       goal               < 25465    to the right, improve=0.03094466, (0 missing)
##       reward_length      < 14742.5  to the right, improve=0.02885216, (0 missing)
##       mo_launched        splits as  RLRLLLLLLLRR, improve=0.02184056, (0 missing)
##       social_media_count splits as  RRLR,         improve=0.01388776, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.01384588, (0 missing)
##   Surrogate splits:
##       description_length < 12818.5  to the right, agree=0.613, adj=0.046, (0 split)
##       mo_launched        splits as  RRRRRRRRRLRR, agree=0.605, adj=0.026, (0 split)
##       social_media_count splits as  RRLL,         agree=0.599, adj=0.013, (0 split)
##       reward_length      < 16308    to the right, agree=0.599, adj=0.013, (0 split)
## 
## Node number 3023: 155 observations,    complexity param=0.0001528161
##   mean=0.8322581, MSE=0.1396046 
##   left son=6046 (74 obs) right son=6047 (81 obs)
##   Primary splits:
##       mo_launched        splits as  LLRRLRLRRRLL, improve=0.06879151, (0 missing)
##       description_length < 15325.5  to the right, improve=0.04500901, (0 missing)
##       social_media_count splits as  LRRL,         improve=0.02943800, (0 missing)
##       goal               < 17000    to the right, improve=0.01927270, (0 missing)
##       campaign_duration  < 59.405   to the left,  improve=0.01845180, (0 missing)
##   Surrogate splits:
##       reward_length      < 23833.5  to the left,  agree=0.600, adj=0.162, (0 split)
##       description_length < 7029.5   to the right, agree=0.594, adj=0.149, (0 split)
##       campaign_duration  < 32.42    to the right, agree=0.568, adj=0.095, (0 split)
##       goal               < 30025    to the right, agree=0.555, adj=0.068, (0 split)
##       social_media_count splits as  RRLR,         agree=0.535, adj=0.027, (0 split)
## 
## Node number 3026: 15 observations
##   mean=0.4, MSE=0.24 
## 
## Node number 3027: 719 observations,    complexity param=0.0001480169
##   mean=0.635605, MSE=0.2316113 
##   left son=6054 (688 obs) right son=6055 (31 obs)
##   Primary splits:
##       reward_length      < 5150     to the right, improve=0.005678404, (0 missing)
##       mo_launched        splits as  RRLRLRLRLLLR, improve=0.005181154, (0 missing)
##       description_length < 3755.5   to the left,  improve=0.004658564, (0 missing)
##       campaign_duration  < 76.45    to the right, improve=0.004049516, (0 missing)
##       goal               < 4600     to the left,  improve=0.001806993, (0 missing)
## 
## Node number 3030: 88 observations,    complexity param=0.0001495628
##   mean=0.6931818, MSE=0.2126808 
##   left son=6060 (38 obs) right son=6061 (50 obs)
##   Primary splits:
##       mo_launched        splits as  RRLRLRRLRLRL, improve=0.09949957, (0 missing)
##       social_media_count splits as  RLRR,         improve=0.07684997, (0 missing)
##       description_length < 8443.5   to the right, improve=0.06746380, (0 missing)
##       campaign_duration  < 59.955   to the right, improve=0.04004077, (0 missing)
##       reward_length      < 8615     to the right, improve=0.03869872, (0 missing)
##   Surrogate splits:
##       social_media_count splits as  RLRL,         agree=0.636, adj=0.158, (0 split)
##       description_length < 7930     to the right, agree=0.625, adj=0.132, (0 split)
##       campaign_duration  < 88.83    to the right, agree=0.602, adj=0.079, (0 split)
##       goal               < 9987     to the left,  agree=0.591, adj=0.053, (0 split)
##       usa                < 0.5      to the left,  agree=0.580, adj=0.026, (0 split)
## 
## Node number 3031: 184 observations
##   mean=0.826087, MSE=0.1436673 
## 
## Node number 3032: 16 observations
##   mean=0.125, MSE=0.109375 
## 
## Node number 3033: 12 observations
##   mean=0.6666667, MSE=0.2222222 
## 
## Node number 3034: 36 observations,    complexity param=0.0001847887
##   mean=0.5, MSE=0.25 
##   left son=6068 (20 obs) right son=6069 (16 obs)
##   Primary splits:
##       description_length < 3286     to the right, improve=0.20000000, (0 missing)
##       mo_launched        splits as  LRLR--LRLRRR, improve=0.16387960, (0 missing)
##       reward_length      < 11688    to the left,  improve=0.05555556, (0 missing)
##       goal               < 5322.5   to the left,  improve=0.03703704, (0 missing)
##       campaign_duration  < 30.51    to the right, improve=0.01785714, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  LRLR--LRLRLL, agree=0.778, adj=0.500, (0 split)
##       campaign_duration  < 29.98    to the right, agree=0.694, adj=0.312, (0 split)
##       goal               < 10750    to the left,  agree=0.639, adj=0.187, (0 split)
##       social_media_count splits as  LLRL,         agree=0.611, adj=0.125, (0 split)
##       reward_length      < 8631.5   to the right, agree=0.583, adj=0.063, (0 split)
## 
## Node number 3035: 44 observations
##   mean=0.8181818, MSE=0.1487603 
## 
## Node number 3036: 1523 observations,    complexity param=0.0002684924
##   mean=0.7163493, MSE=0.203193 
##   left son=6072 (428 obs) right son=6073 (1095 obs)
##   Primary splits:
##       reward_length     < 7332.5   to the left,  improve=0.005847438, (0 missing)
##       usa               < 0.5      to the left,  improve=0.004748779, (0 missing)
##       goal              < 9052     to the right, improve=0.004486900, (0 missing)
##       campaign_duration < 22.575   to the left,  improve=0.004454254, (0 missing)
##       mo_launched       splits as  RRLRLRLRLLLL, improve=0.003446402, (0 missing)
##   Surrogate splits:
##       campaign_duration < 22.93    to the left,  agree=0.72, adj=0.002, (0 split)
## 
## Node number 3037: 237 observations,    complexity param=0.0002237785
##   mean=0.835443, MSE=0.137478 
##   left son=6074 (7 obs) right son=6075 (230 obs)
##   Primary splits:
##       usa           < 0.5      to the left,  improve=0.06690121, (0 missing)
##       mo_launched   splits as  RRRLLRLRLRRL, improve=0.05205483, (0 missing)
##       reward_length < 6731     to the left,  improve=0.01668178, (0 missing)
##       goal          < 8185     to the right, improve=0.01668178, (0 missing)
##       category      splits as  ------R---L----, improve=0.01564377, (0 missing)
## 
## Node number 3038: 244 observations,    complexity param=0.0001390319
##   mean=0.7622951, MSE=0.1812013 
##   left son=6076 (89 obs) right son=6077 (155 obs)
##   Primary splits:
##       social_media_count splits as  RLLL,         improve=0.038768890, (0 missing)
##       campaign_duration  < 36.155   to the right, improve=0.023663830, (0 missing)
##       description_length < 1959     to the left,  improve=0.018153580, (0 missing)
##       reward_length      < 24028.5  to the right, improve=0.009033590, (0 missing)
##       goal               < 6550     to the left,  improve=0.008611653, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 39.815   to the right, agree=0.643, adj=0.022, (0 split)
##       description_length < 6730     to the right, agree=0.643, adj=0.022, (0 split)
##       goal               < 4742.5   to the left,  agree=0.639, adj=0.011, (0 split)
## 
## Node number 3039: 332 observations,    complexity param=0.000138674
##   mean=0.8463855, MSE=0.1300171 
##   left son=6078 (22 obs) right son=6079 (310 obs)
##   Primary splits:
##       goal               < 11925    to the right, improve=0.024076310, (0 missing)
##       reward_length      < 23034    to the left,  improve=0.011634270, (0 missing)
##       description_length < 2614     to the right, improve=0.010906920, (0 missing)
##       campaign_duration  < 38.595   to the left,  improve=0.010404150, (0 missing)
##       mo_launched        splits as  L---L--RLLRL, improve=0.004764025, (0 missing)
## 
## Node number 3092: 19 observations
##   mean=0, MSE=0 
## 
## Node number 3093: 204 observations,    complexity param=0.000116584
##   mean=0.2009804, MSE=0.1605873 
##   left son=6186 (171 obs) right son=6187 (33 obs)
##   Primary splits:
##       description_length < 729.5    to the right, improve=0.02105106, (0 missing)
##       campaign_duration  < 27.5     to the right, improve=0.01982351, (0 missing)
##       category           splits as  --------R---LR-, improve=0.01080353, (0 missing)
##       goal               < 1945     to the right, improve=0.01016239, (0 missing)
##       mo_launched        splits as  RR-RR-L--LLR, improve=0.01014409, (0 missing)
##   Surrogate splits:
##       reward_length      < 1433.5   to the right, agree=0.848, adj=0.061, (0 split)
##       social_media_count splits as  LLLR,         agree=0.843, adj=0.030, (0 split)
## 
## Node number 3094: 103 observations
##   mean=0.2621359, MSE=0.1934207 
## 
## Node number 3095: 8 observations
##   mean=0.875, MSE=0.109375 
## 
## Node number 3098: 15 observations
##   mean=0.06666667, MSE=0.06222222 
## 
## Node number 3099: 105 observations,    complexity param=0.0001665416
##   mean=0.3809524, MSE=0.2358277 
##   left son=6198 (89 obs) right son=6199 (16 obs)
##   Primary splits:
##       reward_length      < 2994.5   to the left,  improve=0.10382450, (0 missing)
##       campaign_duration  < 29.985   to the right, improve=0.02851244, (0 missing)
##       mo_launched        splits as  --R--L-RR---, improve=0.02644231, (0 missing)
##       description_length < 780.5    to the right, improve=0.02403846, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.02077610, (0 missing)
## 
## Node number 3110: 63 observations,    complexity param=0.0001283513
##   mean=0.3650794, MSE=0.2317964 
##   left son=6220 (15 obs) right son=6221 (48 obs)
##   Primary splits:
##       mo_launched        splits as  RRRLRRRRLLRR, improve=0.07240489, (0 missing)
##       description_length < 4870     to the right, improve=0.03616848, (0 missing)
##       campaign_duration  < 41.31    to the right, improve=0.03177694, (0 missing)
##       goal               < 3225     to the left,  improve=0.03141304, (0 missing)
##       reward_length      < 3026.5   to the right, improve=0.02928940, (0 missing)
##   Surrogate splits:
##       reward_length     < 3877     to the right, agree=0.810, adj=0.200, (0 split)
##       campaign_duration < 33.29    to the left,  agree=0.778, adj=0.067, (0 split)
## 
## Node number 3111: 10 observations
##   mean=0.8, MSE=0.16 
## 
## Node number 3128: 20 observations
##   mean=0.1, MSE=0.09 
## 
## Node number 3129: 7 observations
##   mean=0.5714286, MSE=0.244898 
## 
## Node number 3130: 16 observations
##   mean=0.375, MSE=0.234375 
## 
## Node number 3131: 30 observations,    complexity param=0.0001389883
##   mean=0.7, MSE=0.21 
##   left son=6262 (12 obs) right son=6263 (18 obs)
##   Primary splits:
##       category           splits as  --------L---RL-, improve=0.25485010, (0 missing)
##       reward_length      < 3743     to the left,  improve=0.12052860, (0 missing)
##       mo_launched        splits as  L--R--LRLL--, improve=0.05643739, (0 missing)
##       campaign_duration  < 30.02    to the left,  improve=0.05303030, (0 missing)
##       description_length < 2864.5   to the right, improve=0.02607197, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  R--R--RRRL--, agree=0.667, adj=0.167, (0 split)
##       description_length < 3157.5   to the right, agree=0.667, adj=0.167, (0 split)
##       social_media_count splits as  RLR-,         agree=0.633, adj=0.083, (0 split)
##       reward_length      < 3435     to the left,  agree=0.633, adj=0.083, (0 split)
## 
## Node number 3132: 10 observations
##   mean=0.2, MSE=0.16 
## 
## Node number 3133: 16 observations
##   mean=0.75, MSE=0.1875 
## 
## Node number 3148: 326 observations,    complexity param=0.0001352428
##   mean=0.3128834, MSE=0.2149874 
##   left son=6296 (58 obs) right son=6297 (268 obs)
##   Primary splits:
##       campaign_duration  < 29.995   to the left,  improve=0.015286250, (0 missing)
##       reward_length      < 3017.5   to the left,  improve=0.013027850, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.011581660, (0 missing)
##       description_length < 1065     to the left,  improve=0.010548140, (0 missing)
##       social_media_count splits as  RRLR,         improve=0.009258457, (0 missing)
##   Surrogate splits:
##       description_length < 394.5    to the left,  agree=0.825, adj=0.017, (0 split)
## 
## Node number 3149: 93 observations,    complexity param=0.0001027917
##   mean=0.4623656, MSE=0.2485837 
##   left son=6298 (28 obs) right son=6299 (65 obs)
##   Primary splits:
##       category           splits as  L---R-----R----, improve=0.03442090, (0 missing)
##       reward_length      < 3905     to the right, improve=0.03342656, (0 missing)
##       social_media_count splits as  RLLL, improve=0.02739958, (0 missing)
##       description_length < 1015     to the right, improve=0.02108269, (0 missing)
##       goal               < 3250     to the right, improve=0.01953488, (0 missing)
##   Surrogate splits:
##       reward_length      < 2205     to the left,  agree=0.742, adj=0.143, (0 split)
##       description_length < 1218.5   to the right, agree=0.710, adj=0.036, (0 split)
## 
## Node number 3154: 13 observations
##   mean=0.2307692, MSE=0.1775148 
## 
## Node number 3155: 10 observations
##   mean=0.7, MSE=0.21 
## 
## Node number 3156: 16 observations
##   mean=0.0625, MSE=0.05859375 
## 
## Node number 3157: 40 observations,    complexity param=0.0001099321
##   mean=0.375, MSE=0.234375 
##   left son=6314 (25 obs) right son=6315 (15 obs)
##   Primary splits:
##       description_length < 479.5    to the left,  improve=0.06417778, (0 missing)
##       campaign_duration  < 45.3     to the left,  improve=0.04038232, (0 missing)
##       reward_length      < 3417.5   to the left,  improve=0.03589744, (0 missing)
##       category           splits as  R---------L----, improve=0.03492063, (0 missing)
##       mo_launched        splits as  -LRR-L-R---R, improve=0.03004444, (0 missing)
##   Surrogate splits:
##       reward_length      < 3927     to the left,  agree=0.675, adj=0.133, (0 split)
##       campaign_duration  < 18.065   to the right, agree=0.650, adj=0.067, (0 split)
##       social_media_count splits as  LLRL,         agree=0.650, adj=0.067, (0 split)
## 
## Node number 3158: 42 observations,    complexity param=0.0001126356
##   mean=0.4285714, MSE=0.244898 
##   left son=6316 (34 obs) right son=6317 (8 obs)
##   Primary splits:
##       description_length < 290.5    to the right, improve=0.09926471, (0 missing)
##       reward_length      < 3178.5   to the left,  improve=0.06388152, (0 missing)
##       campaign_duration  < 20.695   to the right, improve=0.06313131, (0 missing)
##       goal               < 1450     to the right, improve=0.04166667, (0 missing)
##       mo_launched        splits as  R---R-L-LLL-, improve=0.03750000, (0 missing)
##   Surrogate splits:
##       social_media_count splits as  LLR-, agree=0.857, adj=0.25, (0 split)
## 
## Node number 3159: 12 observations
##   mean=0.75, MSE=0.1875 
## 
## Node number 3162: 198 observations,    complexity param=0.0001472286
##   mean=0.4393939, MSE=0.2463269 
##   left son=6324 (80 obs) right son=6325 (118 obs)
##   Primary splits:
##       mo_launched        splits as  LR-RRLRL-L-R, improve=0.028575430, (0 missing)
##       reward_length      < 3337.5   to the right, improve=0.016895570, (0 missing)
##       goal               < 1175     to the right, improve=0.011988470, (0 missing)
##       description_length < 963.5    to the right, improve=0.011412640, (0 missing)
##       campaign_duration  < 50.295   to the right, improve=0.008645122, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 51.17    to the right, agree=0.626, adj=0.075, (0 split)
##       reward_length      < 716      to the left,  agree=0.611, adj=0.038, (0 split)
##       goal               < 1625     to the right, agree=0.606, adj=0.025, (0 split)
##       description_length < 598.5    to the left,  agree=0.606, adj=0.025, (0 split)
## 
## Node number 3163: 55 observations,    complexity param=0.0001684563
##   mean=0.7090909, MSE=0.206281 
##   left son=6326 (11 obs) right son=6327 (44 obs)
##   Primary splits:
##       campaign_duration  < 44.775   to the right, improve=0.14463140, (0 missing)
##       mo_launched        splits as  RR-LLLLL-R-L, improve=0.09141293, (0 missing)
##       description_length < 975.5    to the right, improve=0.08979701, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.07236945, (0 missing)
##       goal               < 1273.5   to the right, improve=0.02951601, (0 missing)
## 
## Node number 3164: 26 observations,    complexity param=0.000114616
##   mean=0.5, MSE=0.25 
##   left son=6328 (7 obs) right son=6329 (19 obs)
##   Primary splits:
##       description_length < 815      to the left,  improve=0.18796990, (0 missing)
##       social_media_count splits as  LRRR,         improve=0.06766917, (0 missing)
##       campaign_duration  < 15.885   to the right, improve=0.05882353, (0 missing)
##       goal               < 1550     to the right, improve=0.02777778, (0 missing)
##       reward_length      < 1909     to the left,  improve=0.02777778, (0 missing)
##   Surrogate splits:
##       goal               < 1705     to the right, agree=0.808, adj=0.286, (0 split)
##       social_media_count splits as  RRRL,         agree=0.769, adj=0.143, (0 split)
## 
## Node number 3165: 9 observations
##   mean=0.8888889, MSE=0.09876543 
## 
## Node number 3172: 16 observations
##   mean=0.0625, MSE=0.05859375 
## 
## Node number 3173: 76 observations,    complexity param=0.0001315161
##   mean=0.3947368, MSE=0.2389197 
##   left son=6346 (23 obs) right son=6347 (53 obs)
##   Primary splits:
##       reward_length      < 2215.5   to the right, improve=0.05712689, (0 missing)
##       goal               < 2125     to the right, improve=0.04912532, (0 missing)
##       social_media_count splits as  LRRL,         improve=0.04204845, (0 missing)
##       campaign_duration  < 45.52    to the left,  improve=0.04135401, (0 missing)
##       mo_launched        splits as  -R-----L-RLR, improve=0.03342674, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 6.26     to the left,  agree=0.724, adj=0.087, (0 split)
##       description_length < 1373.5   to the left,  agree=0.724, adj=0.087, (0 split)
##       social_media_count splits as  RRRL,         agree=0.711, adj=0.043, (0 split)
## 
## Node number 3174: 136 observations,    complexity param=0.0001765153
##   mean=0.4558824, MSE=0.2480536 
##   left son=6348 (111 obs) right son=6349 (25 obs)
##   Primary splits:
##       social_media_count splits as  LRL-,         improve=0.03077955, (0 missing)
##       mo_launched        splits as  L-LRRRL-L---, improve=0.03049627, (0 missing)
##       campaign_duration  < 59.13    to the right, improve=0.02946217, (0 missing)
##       description_length < 1314     to the right, improve=0.02612919, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.02259159, (0 missing)
##   Surrogate splits:
##       description_length < 1269.5   to the right, agree=0.831, adj=0.08, (0 split)
## 
## Node number 3175: 43 observations,    complexity param=0.0001693191
##   mean=0.6976744, MSE=0.2109248 
##   left son=6350 (11 obs) right son=6351 (32 obs)
##   Primary splits:
##       social_media_count splits as  RL--,         improve=0.18184730, (0 missing)
##       mo_launched        splits as  R-RRLLR-R---, improve=0.10978160, (0 missing)
##       campaign_duration  < 21.23    to the left,  improve=0.10437870, (0 missing)
##       description_length < 1668.5   to the left,  improve=0.05661561, (0 missing)
##       reward_length      < 1395.5   to the left,  improve=0.05613831, (0 missing)
##   Surrogate splits:
##       goal               < 2900     to the right, agree=0.791, adj=0.182, (0 split)
##       category           splits as  R---L-----R----, agree=0.767, adj=0.091, (0 split)
##       description_length < 1359     to the left,  agree=0.767, adj=0.091, (0 split)
##       reward_length      < 843.5    to the left,  agree=0.767, adj=0.091, (0 split)
## 
## Node number 3186: 33 observations
##   mean=0.2727273, MSE=0.1983471 
## 
## Node number 3187: 12 observations
##   mean=0.6666667, MSE=0.2222222 
## 
## Node number 3192: 71 observations,    complexity param=0.0001148201
##   mean=0.3661972, MSE=0.2320968 
##   left son=6384 (42 obs) right son=6385 (29 obs)
##   Primary splits:
##       mo_launched        splits as  -L--RR-L--L-, improve=0.06787153, (0 missing)
##       campaign_duration  < 30.235   to the left,  improve=0.06308608, (0 missing)
##       description_length < 1416     to the right, improve=0.05646540, (0 missing)
##       social_media_count splits as  LRRL,         improve=0.05646540, (0 missing)
##       goal               < 3250     to the left,  improve=0.04131658, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 44.98    to the left,  agree=0.662, adj=0.172, (0 split)
##       goal               < 2400     to the left,  agree=0.662, adj=0.172, (0 split)
##       description_length < 1374     to the right, agree=0.648, adj=0.138, (0 split)
##       reward_length      < 3588.5   to the left,  agree=0.634, adj=0.103, (0 split)
##       social_media_count splits as  LLRL,         agree=0.620, adj=0.069, (0 split)
## 
## Node number 3193: 106 observations,    complexity param=0.0001282645
##   mean=0.5849057, MSE=0.242791 
##   left son=6386 (74 obs) right son=6387 (32 obs)
##   Primary splits:
##       description_length < 1545     to the right, improve=0.04854561, (0 missing)
##       goal               < 1650     to the right, improve=0.04839564, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.03735209, (0 missing)
##       reward_length      < 3182     to the left,  improve=0.02714722, (0 missing)
##       campaign_duration  < 14.145   to the left,  improve=0.02606924, (0 missing)
##   Surrogate splits:
##       campaign_duration < 51.015   to the left,  agree=0.726, adj=0.094, (0 split)
## 
## Node number 3194: 76 observations,    complexity param=0.0001527192
##   mean=0.5921053, MSE=0.2415166 
##   left son=6388 (68 obs) right son=6389 (8 obs)
##   Primary splits:
##       reward_length      < 3680     to the right, improve=0.08104575, (0 missing)
##       description_length < 1862     to the left,  improve=0.07244965, (0 missing)
##       social_media_count splits as  RLRL,         improve=0.05198626, (0 missing)
##       campaign_duration  < 45.065   to the left,  improve=0.03898377, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.03757448, (0 missing)
##   Surrogate splits:
##       goal < 3950     to the left,  agree=0.921, adj=0.25, (0 split)
## 
## Node number 3195: 28 observations,    complexity param=0.0001617725
##   mean=0.8571429, MSE=0.122449 
##   left son=6390 (7 obs) right son=6391 (21 obs)
##   Primary splits:
##       campaign_duration < 14.09    to the left,  improve=0.5000000, (0 missing)
##       goal              < 1750     to the right, improve=0.1666667, (0 missing)
##       reward_length     < 3904.5   to the right, improve=0.1444444, (0 missing)
##       video_status      < 0.5      to the right, improve=0.1078431, (0 missing)
##       mo_launched       splits as  -L--LL-R--R-, improve=0.1078431, (0 missing)
##   Surrogate splits:
##       social_media_count splits as  RRRL,         agree=0.786, adj=0.143, (0 split)
##       reward_length      < 4015.5   to the right, agree=0.786, adj=0.143, (0 split)
## 
## Node number 3196: 11 observations
##   mean=0.3636364, MSE=0.231405 
## 
## Node number 3197: 303 observations,    complexity param=0.0001336597
##   mean=0.69967, MSE=0.2101319 
##   left son=6394 (220 obs) right son=6395 (83 obs)
##   Primary splits:
##       campaign_duration  < 29.97    to the right, improve=0.016378270, (0 missing)
##       reward_length      < 2762     to the left,  improve=0.016259430, (0 missing)
##       description_length < 2129.5   to the left,  improve=0.014138250, (0 missing)
##       mo_launched        splits as  L-RR--L-LR-L, improve=0.011028090, (0 missing)
##       goal               < 1837.5   to the right, improve=0.005774324, (0 missing)
##   Surrogate splits:
##       description_length < 4655.5   to the left,  agree=0.743, adj=0.060, (0 split)
##       goal               < 993.5    to the right, agree=0.736, adj=0.036, (0 split)
## 
## Node number 3212: 155 observations,    complexity param=0.0001407554
##   mean=0.4645161, MSE=0.2487409 
##   left son=6424 (65 obs) right son=6425 (90 obs)
##   Primary splits:
##       mo_launched        splits as  RRRRLRLLLRRL, improve=0.03556176, (0 missing)
##       reward_length      < 727.5    to the left,  improve=0.03013841, (0 missing)
##       goal               < 481      to the left,  improve=0.02481119, (0 missing)
##       campaign_duration  < 59.995   to the right, improve=0.02010942, (0 missing)
##       description_length < 217.5    to the right, improve=0.01760215, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 59.995   to the right, agree=0.613, adj=0.077, (0 split)
##       goal               < 211      to the left,  agree=0.606, adj=0.062, (0 split)
##       category           splits as  L---R---L-R-RR-, agree=0.600, adj=0.046, (0 split)
##       reward_length      < 2191.5   to the right, agree=0.594, adj=0.031, (0 split)
##       social_media_count splits as  RRL-, agree=0.587, adj=0.015, (0 split)
## 
## Node number 3213: 12 observations
##   mean=0.8333333, MSE=0.1388889 
## 
## Node number 3214: 8 observations
##   mean=0.375, MSE=0.234375 
## 
## Node number 3215: 15 observations
##   mean=1, MSE=0 
## 
## Node number 3228: 147 observations,    complexity param=0.0001369433
##   mean=0.4965986, MSE=0.2499884 
##   left son=6456 (139 obs) right son=6457 (8 obs)
##   Primary splits:
##       campaign_duration  < 60.035   to the left,  improve=0.03296557, (0 missing)
##       description_length < 487.5    to the left,  improve=0.02888092, (0 missing)
##       mo_launched        splits as  LLRRLLLRRLLL, improve=0.02590685, (0 missing)
##       social_media_count splits as  LRR-,         improve=0.01646693, (0 missing)
##       usa                < 0.5      to the left,  improve=0.01621552, (0 missing)
## 
## Node number 3229: 13 observations
##   mean=0.8461538, MSE=0.1301775 
## 
## Node number 3230: 39 observations,    complexity param=0.0001198762
##   mean=0.4871795, MSE=0.2498356 
##   left son=6460 (32 obs) right son=6461 (7 obs)
##   Primary splits:
##       reward_length      < 2421     to the right, improve=0.11984260, (0 missing)
##       campaign_duration  < 44.98    to the right, improve=0.10007310, (0 missing)
##       description_length < 528      to the left,  improve=0.07231716, (0 missing)
##       social_media_count splits as  LR--,         improve=0.03868421, (0 missing)
##       goal               < 625      to the right, improve=0.02400034, (0 missing)
## 
## Node number 3231: 141 observations
##   mean=0.6879433, MSE=0.2146773 
## 
## Node number 3240: 15 observations
##   mean=0.1333333, MSE=0.1155556 
## 
## Node number 3241: 59 observations,    complexity param=0.0001534246
##   mean=0.4745763, MSE=0.2493536 
##   left son=6482 (48 obs) right son=6483 (11 obs)
##   Primary splits:
##       mo_launched        splits as  RLLLLLLLLLRL, improve=0.10850660, (0 missing)
##       campaign_duration  < 47.02    to the right, improve=0.07687551, (0 missing)
##       social_media_count splits as  LRR-,         improve=0.04158986, (0 missing)
##       reward_length      < 3279.5   to the left,  improve=0.02727447, (0 missing)
##       description_length < 2669.5   to the left,  improve=0.01211107, (0 missing)
## 
## Node number 3244: 7 observations
##   mean=0.1428571, MSE=0.122449 
## 
## Node number 3245: 50 observations
##   mean=0.7, MSE=0.21 
## 
## Node number 3248: 11 observations
##   mean=0, MSE=0 
## 
## Node number 3249: 13 observations
##   mean=0.4615385, MSE=0.2485207 
## 
## Node number 3250: 19 observations
##   mean=0.4736842, MSE=0.2493075 
## 
## Node number 3251: 18 observations
##   mean=0.8888889, MSE=0.09876543 
## 
## Node number 3252: 62 observations,    complexity param=0.000114352
##   mean=0.516129, MSE=0.2497399 
##   left son=6504 (21 obs) right son=6505 (41 obs)
##   Primary splits:
##       category           splits as  L---R---R-R----, improve=0.06852981, (0 missing)
##       description_length < 1673.5   to the right, improve=0.04647696, (0 missing)
##       social_media_count splits as  RLL-, improve=0.04270095, (0 missing)
##       mo_launched        splits as  LRL-LL----R-, improve=0.04090240, (0 missing)
##       goal               < 775      to the right, improve=0.03211111, (0 missing)
##   Surrogate splits:
##       description_length < 3179.5   to the right, agree=0.742, adj=0.238, (0 split)
##       mo_launched        splits as  RRR-LR----R-, agree=0.694, adj=0.095, (0 split)
##       usa                < 0.5      to the left,  agree=0.677, adj=0.048, (0 split)
## 
## Node number 3253: 17 observations
##   mean=0.8235294, MSE=0.1453287 
## 
## Node number 3254: 73 observations,    complexity param=0.0001179065
##   mean=0.739726, MSE=0.1925314 
##   left son=6508 (63 obs) right son=6509 (10 obs)
##   Primary splits:
##       description_length < 3656     to the left,  improve=0.05584950, (0 missing)
##       goal               < 675      to the right, improve=0.03695307, (0 missing)
##       reward_length      < 3502.5   to the left,  improve=0.02891845, (0 missing)
##       category           splits as  R---L---R-L----, improve=0.02637560, (0 missing)
##       mo_launched        splits as  ---R--LLRL-R, improve=0.02157322, (0 missing)
## 
## Node number 3255: 14 observations
##   mean=1, MSE=0 
## 
## Node number 3264: 28 observations
##   mean=0.1785714, MSE=0.1466837 
## 
## Node number 3265: 13 observations
##   mean=0.6153846, MSE=0.2366864 
## 
## Node number 3266: 7 observations
##   mean=0.1428571, MSE=0.122449 
## 
## Node number 3267: 25 observations
##   mean=0.8, MSE=0.16 
## 
## Node number 3268: 22 observations,    complexity param=0.0001308142
##   mean=0.3636364, MSE=0.231405 
##   left son=6536 (10 obs) right son=6537 (12 obs)
##   Primary splits:
##       video_status       < 0.5      to the left,  improve=0.25029760, (0 missing)
##       description_length < 1295.5   to the right, improve=0.24795920, (0 missing)
##       reward_length      < 1852.5   to the left,  improve=0.09829932, (0 missing)
##       category           splits as  R-------L-L-LL-, improve=0.06696429, (0 missing)
##       goal               < 775      to the left,  improve=0.04591837, (0 missing)
##   Surrogate splits:
##       category           splits as  R-------R-R-LL-, agree=0.773, adj=0.5, (0 split)
##       mo_launched        splits as  ---R-R-LR-RL, agree=0.636, adj=0.2, (0 split)
##       description_length < 1553.5   to the left,  agree=0.636, adj=0.2, (0 split)
##       reward_length      < 1302.5   to the left,  agree=0.636, adj=0.2, (0 split)
##       goal               < 725      to the left,  agree=0.591, adj=0.1, (0 split)
## 
## Node number 3269: 73 observations,    complexity param=0.000104771
##   mean=0.6438356, MSE=0.2293113 
##   left son=6538 (25 obs) right son=6539 (48 obs)
##   Primary splits:
##       mo_launched        splits as  L--R-R-LR-RR, improve=0.06096631, (0 missing)
##       category           splits as  R---R---L-L-R--, improve=0.05249446, (0 missing)
##       description_length < 2933     to the left,  improve=0.02868091, (0 missing)
##       usa                < 0.5      to the left,  improve=0.02143247, (0 missing)
##       reward_length      < 1211.5   to the left,  improve=0.02143247, (0 missing)
##   Surrogate splits:
##       goal               < 537.5    to the right, agree=0.712, adj=0.16, (0 split)
##       social_media_count splits as  RRL-,         agree=0.685, adj=0.08, (0 split)
##       campaign_duration  < 20.82    to the right, agree=0.671, adj=0.04, (0 split)
## 
## Node number 3270: 25 observations,    complexity param=0.0001820471
##   mean=0.52, MSE=0.2496 
##   left son=6540 (15 obs) right son=6541 (10 obs)
##   Primary splits:
##       category           splits as  L-------R-R-LL-, improve=0.3856838, (0 missing)
##       social_media_count splits as  LRR-, improve=0.2376037, (0 missing)
##       reward_length      < 3255     to the right, improve=0.2216117, (0 missing)
##       description_length < 1790     to the left,  improve=0.1956361, (0 missing)
##       mo_launched        splits as  L--L-L-LR-RR, improve=0.1352398, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  L--R-L-LL-LR, agree=0.76, adj=0.4, (0 split)
##       campaign_duration  < 6.115    to the left,  agree=0.68, adj=0.2, (0 split)
##       social_media_count splits as  LRL-,         agree=0.68, adj=0.2, (0 split)
##       description_length < 2346     to the left,  agree=0.68, adj=0.2, (0 split)
##       goal               < 325      to the right, agree=0.64, adj=0.1, (0 split)
## 
## Node number 3271: 60 observations
##   mean=0.8333333, MSE=0.1388889 
## 
## Node number 3364: 7 observations
##   mean=0.1428571, MSE=0.122449 
## 
## Node number 3365: 27 observations
##   mean=0.5925926, MSE=0.2414266 
## 
## Node number 3384: 8 observations
##   mean=0.25, MSE=0.1875 
## 
## Node number 3385: 22 observations
##   mean=0.6818182, MSE=0.2169421 
## 
## Node number 3386: 16 observations
##   mean=0.5625, MSE=0.2460938 
## 
## Node number 3387: 27 observations
##   mean=0.962963, MSE=0.03566529 
## 
## Node number 3436: 19 observations
##   mean=0.5263158, MSE=0.2493075 
## 
## Node number 3437: 28 observations
##   mean=0.8928571, MSE=0.09566327 
## 
## Node number 3588: 23 observations
##   mean=0.04347826, MSE=0.0415879 
## 
## Node number 3589: 10 observations
##   mean=0.6, MSE=0.24 
## 
## Node number 3590: 28 observations,    complexity param=0.0001222147
##   mean=0.3214286, MSE=0.2181122 
##   left son=7180 (12 obs) right son=7181 (16 obs)
##   Primary splits:
##       description_length < 1114.5   to the left,  improve=0.19493180, (0 missing)
##       goal               < 3173.5   to the left,  improve=0.08122157, (0 missing)
##       reward_length      < 7309     to the left,  improve=0.07800270, (0 missing)
##       mo_launched        splits as  -R--LRR----L, improve=0.03755686, (0 missing)
##       category           splits as  R-------R---L--, improve=0.03755686, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  -L--RRR----L, agree=0.714, adj=0.333, (0 split)
##       goal               < 2247.5   to the left,  agree=0.679, adj=0.250, (0 split)
##       campaign_duration  < 29.98    to the left,  agree=0.607, adj=0.083, (0 split)
##       usa                < 0.5      to the left,  agree=0.607, adj=0.083, (0 split)
##       social_media_count splits as  RRL-,         agree=0.607, adj=0.083, (0 split)
## 
## Node number 3591: 20 observations,    complexity param=0.0001488798
##   mean=0.65, MSE=0.2275 
##   left son=7182 (9 obs) right son=7183 (11 obs)
##   Primary splits:
##       description_length < 1586     to the right, improve=0.36063940, (0 missing)
##       mo_launched        splits as  -L--LRR----R, improve=0.20523920, (0 missing)
##       reward_length      < 5536.5   to the left,  improve=0.14835160, (0 missing)
##       goal               < 2050     to the left,  improve=0.06593407, (0 missing)
##       category           splits as  L-------L---R--, improve=0.02930403, (0 missing)
##   Surrogate splits:
##       reward_length     < 5491     to the left,  agree=0.75, adj=0.444, (0 split)
##       campaign_duration < 29.98    to the left,  agree=0.70, adj=0.333, (0 split)
##       mo_launched       splits as  -L--LRR----R, agree=0.70, adj=0.333, (0 split)
##       category          splits as  R-------L---R--, agree=0.65, adj=0.222, (0 split)
##       goal              < 2750     to the right, agree=0.60, adj=0.111, (0 split)
## 
## Node number 3612: 11 observations
##   mean=0.2727273, MSE=0.1983471 
## 
## Node number 3613: 28 observations,    complexity param=0.0001034897
##   mean=0.6428571, MSE=0.2295918 
##   left son=7226 (21 obs) right son=7227 (7 obs)
##   Primary splits:
##       description_length < 1464.5   to the left,  improve=0.18518520, (0 missing)
##       reward_length      < 5000     to the left,  improve=0.09994058, (0 missing)
##       goal               < 1350     to the right, improve=0.09388889, (0 missing)
##       campaign_duration  < 42.495   to the right, improve=0.08122157, (0 missing)
##       mo_launched        splits as  R-RL--LRRL--, improve=0.05975309, (0 missing)
##   Surrogate splits:
##       mo_launched splits as  R-LL--LRLL--, agree=0.821, adj=0.286, (0 split)
## 
## Node number 3634: 49 observations,    complexity param=0.0001224797
##   mean=0.2857143, MSE=0.2040816 
##   left son=7268 (36 obs) right son=7269 (13 obs)
##   Primary splits:
##       description_length < 1359.5   to the right, improve=0.11303420, (0 missing)
##       mo_launched        splits as  LRRLRRRLRRLR, improve=0.07804878, (0 missing)
##       campaign_duration  < 30.345   to the left,  improve=0.05470085, (0 missing)
##       goal               < 3050     to the left,  improve=0.01730769, (0 missing)
##       social_media_count splits as  RL-L,         improve=0.01531100, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  RLLLLLLLLLLR, agree=0.776, adj=0.154, (0 split)
##       social_media_count splits as  LL-R,         agree=0.755, adj=0.077, (0 split)
##       goal               < 1750     to the right, agree=0.755, adj=0.077, (0 split)
## 
## Node number 3635: 278 observations,    complexity param=0.0001792156
##   mean=0.5, MSE=0.25 
##   left son=7270 (181 obs) right son=7271 (97 obs)
##   Primary splits:
##       mo_launched        splits as  RRLRLLLRLLRL, improve=0.025118190, (0 missing)
##       campaign_duration  < 16.08    to the left,  improve=0.013178700, (0 missing)
##       usa                < 0.5      to the left,  improve=0.007407407, (0 missing)
##       description_length < 1006     to the left,  improve=0.006792453, (0 missing)
##       reward_length      < 5162     to the right, improve=0.005236699, (0 missing)
##   Surrogate splits:
##       description_length < 801.5    to the right, agree=0.669, adj=0.052, (0 split)
##       goal               < 1155.5   to the right, agree=0.655, adj=0.010, (0 split)
##       reward_length      < 4140.5   to the right, agree=0.655, adj=0.010, (0 split)
## 
## Node number 3642: 15 observations
##   mean=0.3333333, MSE=0.2222222 
## 
## Node number 3643: 91 observations,    complexity param=0.0001101662
##   mean=0.6153846, MSE=0.2366864 
##   left son=7286 (84 obs) right son=7287 (7 obs)
##   Primary splits:
##       goal               < 1343     to the right, improve=0.052083330, (0 missing)
##       reward_length      < 7392     to the left,  improve=0.033349800, (0 missing)
##       campaign_duration  < 39.69    to the right, improve=0.026808910, (0 missing)
##       description_length < 1905     to the left,  improve=0.016666670, (0 missing)
##       mo_launched        splits as  L------L--LR, improve=0.007272727, (0 missing)
## 
## Node number 3644: 12 observations
##   mean=0.1666667, MSE=0.1388889 
## 
## Node number 3645: 204 observations,    complexity param=0.0001348783
##   mean=0.6519608, MSE=0.2269079 
##   left son=7290 (68 obs) right son=7291 (136 obs)
##   Primary splits:
##       reward_length      < 5426     to the left,  improve=0.025627450, (0 missing)
##       campaign_duration  < 21.855   to the right, improve=0.022655670, (0 missing)
##       description_length < 819      to the right, improve=0.016979610, (0 missing)
##       mo_launched        splits as  -LLLRLL-LL--, improve=0.012474200, (0 missing)
##       goal               < 3410     to the right, improve=0.008040736, (0 missing)
##   Surrogate splits:
##       description_length < 640.5    to the left,  agree=0.691, adj=0.074, (0 split)
##       campaign_duration  < 9.685    to the left,  agree=0.681, adj=0.044, (0 split)
## 
## Node number 3646: 12 observations
##   mean=0.4166667, MSE=0.2430556 
## 
## Node number 3647: 36 observations
##   mean=0.9166667, MSE=0.07638889 
## 
## Node number 3650: 40 observations
##   mean=0.325, MSE=0.219375 
## 
## Node number 3651: 29 observations
##   mean=0.5862069, MSE=0.2425684 
## 
## Node number 3654: 90 observations,    complexity param=0.000129522
##   mean=0.5111111, MSE=0.2498765 
##   left son=7308 (70 obs) right son=7309 (20 obs)
##   Primary splits:
##       mo_launched        splits as  L-L--LLRL-LR, improve=0.06525268, (0 missing)
##       campaign_duration  < 38.65    to the left,  improve=0.05068328, (0 missing)
##       description_length < 1351.5   to the right, improve=0.04174901, (0 missing)
##       category           splits as  R-------L---R--, improve=0.03745282, (0 missing)
##       goal               < 525      to the right, improve=0.03521380, (0 missing)
##   Surrogate splits:
##       description_length < 1325     to the right, agree=0.789, adj=0.05, (0 split)
## 
## Node number 3655: 9 observations
##   mean=0.8888889, MSE=0.09876543 
## 
## Node number 3666: 23 observations,    complexity param=0.000106909
##   mean=0.4782609, MSE=0.2495274 
##   left son=7332 (12 obs) right son=7333 (11 obs)
##   Primary splits:
##       mo_launched        splits as  -R-LL----R--, improve=0.22778930, (0 missing)
##       goal               < 933      to the left,  improve=0.16889130, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.02279040, (0 missing)
##       reward_length      < 7247.5   to the left,  improve=0.01888112, (0 missing)
##       description_length < 1296.5   to the right, improve=0.01539202, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 30.02    to the left,  agree=0.783, adj=0.545, (0 split)
##       social_media_count splits as  LRR-, agree=0.652, adj=0.273, (0 split)
##       goal               < 833      to the left,  agree=0.652, adj=0.273, (0 split)
##       reward_length      < 5533.5   to the right, agree=0.652, adj=0.273, (0 split)
##       category           splits as  L-----------R--, agree=0.609, adj=0.182, (0 split)
## 
## Node number 3667: 29 observations
##   mean=0.7241379, MSE=0.1997622 
## 
## Node number 3684: 8 observations
##   mean=0.125, MSE=0.109375 
## 
## Node number 3685: 16 observations
##   mean=0.6875, MSE=0.2148438 
## 
## Node number 3718: 64 observations,    complexity param=0.0001004038
##   mean=0.359375, MSE=0.2302246 
##   left son=7436 (11 obs) right son=7437 (53 obs)
##   Primary splits:
##       goal               < 1050     to the left,  improve=0.06497456, (0 missing)
##       description_length < 2749     to the right, improve=0.04499318, (0 missing)
##       campaign_duration  < 45.235   to the left,  improve=0.03550973, (0 missing)
##       reward_length      < 4154.5   to the right, improve=0.02735521, (0 missing)
##       social_media_count splits as  RLR-,         improve=0.02043125, (0 missing)
##   Surrogate splits:
##       description_length < 2235     to the left,  agree=0.859, adj=0.182, (0 split)
## 
## Node number 3719: 76 observations,    complexity param=0.0001191364
##   mean=0.5394737, MSE=0.2484418 
##   left son=7438 (12 obs) right son=7439 (64 obs)
##   Primary splits:
##       video_status       < 0.5      to the left,  improve=0.06324042, (0 missing)
##       reward_length      < 4241     to the right, improve=0.05783503, (0 missing)
##       social_media_count splits as  LRRL,         improve=0.03719731, (0 missing)
##       goal               < 1550     to the right, improve=0.03324548, (0 missing)
##       description_length < 4246.5   to the right, improve=0.03207027, (0 missing)
## 
## Node number 3722: 12 observations
##   mean=0.1666667, MSE=0.1388889 
## 
## Node number 3723: 119 observations,    complexity param=0.0001178388
##   mean=0.512605, MSE=0.2498411 
##   left son=7446 (89 obs) right son=7447 (30 obs)
##   Primary splits:
##       goal               < 1635.5   to the right, improve=0.032022580, (0 missing)
##       description_length < 2970     to the right, improve=0.029246520, (0 missing)
##       campaign_duration  < 34.45    to the right, improve=0.027162240, (0 missing)
##       reward_length      < 4951     to the right, improve=0.016257210, (0 missing)
##       mo_launched        splits as  -R--R-L-L--R, improve=0.005469914, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 14.5     to the right, agree=0.765, adj=0.067, (0 split)
##       description_length < 2353.5   to the right, agree=0.765, adj=0.067, (0 split)
## 
## Node number 3724: 12 observations
##   mean=0.08333333, MSE=0.07638889 
## 
## Node number 3725: 28 observations,    complexity param=0.0001698356
##   mean=0.5357143, MSE=0.2487245 
##   left son=7450 (19 obs) right son=7451 (9 obs)
##   Primary splits:
##       mo_launched        splits as  L-RR-L-R-LL-, improve=0.23754690, (0 missing)
##       campaign_duration  < 29.65    to the left,  improve=0.20683760, (0 missing)
##       description_length < 2975.5   to the right, improve=0.13846150, (0 missing)
##       reward_length      < 5205.5   to the left,  improve=0.12410260, (0 missing)
##       goal               < 1750     to the left,  improve=0.04153846, (0 missing)
##   Surrogate splits:
##       social_media_count splits as  LRL-,         agree=0.750, adj=0.222, (0 split)
##       description_length < 4233.5   to the left,  agree=0.714, adj=0.111, (0 split)
##       reward_length      < 5607     to the left,  agree=0.714, adj=0.111, (0 split)
## 
## Node number 3726: 39 observations,    complexity param=0.0002303799
##   mean=0.5384615, MSE=0.2485207 
##   left son=7452 (22 obs) right son=7453 (17 obs)
##   Primary splits:
##       reward_length      < 5682.5   to the left,  improve=0.25267380, (0 missing)
##       campaign_duration  < 45.16    to the right, improve=0.13775510, (0 missing)
##       mo_launched        splits as  R-LR-R-L-RL-, improve=0.11052630, (0 missing)
##       category           splits as  --------R---L--, improve=0.09490969, (0 missing)
##       social_media_count splits as  LRLL, improve=0.06913580, (0 missing)
##   Surrogate splits:
##       goal               < 1312.5   to the right, agree=0.692, adj=0.294, (0 split)
##       campaign_duration  < 19.7     to the right, agree=0.667, adj=0.235, (0 split)
##       social_media_count splits as  RLLL,         agree=0.590, adj=0.059, (0 split)
##       mo_launched        splits as  L-LR-L-L-LL-, agree=0.590, adj=0.059, (0 split)
##       description_length < 5181.5   to the right, agree=0.590, adj=0.059, (0 split)
## 
## Node number 3727: 108 observations,    complexity param=0.0002303799
##   mean=0.7777778, MSE=0.1728395 
##   left son=7454 (26 obs) right son=7455 (82 obs)
##   Primary splits:
##       description_length < 2379     to the left,  improve=0.14155050, (0 missing)
##       goal               < 3975     to the right, improve=0.04889877, (0 missing)
##       category           splits as  --------L---R--, improve=0.02959831, (0 missing)
##       reward_length      < 5710.5   to the right, improve=0.02388915, (0 missing)
##       campaign_duration  < 33.84    to the left,  improve=0.01058201, (0 missing)
##   Surrogate splits:
##       campaign_duration < 60.02    to the right, agree=0.769, adj=0.038, (0 split)
## 
## Node number 3728: 17 observations
##   mean=0.1176471, MSE=0.1038062 
## 
## Node number 3729: 7 observations
##   mean=0.5714286, MSE=0.244898 
## 
## Node number 3730: 14 observations
##   mean=0.3571429, MSE=0.2295918 
## 
## Node number 3731: 7 observations
##   mean=0.8571429, MSE=0.122449 
## 
## Node number 3776: 23 observations
##   mean=0.173913, MSE=0.1436673 
## 
## Node number 3777: 9 observations
##   mean=0.6666667, MSE=0.2222222 
## 
## Node number 3778: 420 observations,    complexity param=0.0001945707
##   mean=0.5714286, MSE=0.244898 
##   left son=7556 (402 obs) right son=7557 (18 obs)
##   Primary splits:
##       description_length < 4252.5   to the left,  improve=0.018426390, (0 missing)
##       campaign_duration  < 24.745   to the left,  improve=0.012711860, (0 missing)
##       mo_launched        splits as  RRLRLRLRLRLL, improve=0.009799474, (0 missing)
##       category           splits as  R-------R---L--, improve=0.008515247, (0 missing)
##       reward_length      < 9754     to the right, improve=0.008460938, (0 missing)
## 
## Node number 3779: 60 observations
##   mean=0.7833333, MSE=0.1697222 
## 
## Node number 3782: 81 observations,    complexity param=0.0001607786
##   mean=0.6419753, MSE=0.229843 
##   left son=7564 (44 obs) right son=7565 (37 obs)
##   Primary splits:
##       campaign_duration  < 30.125   to the left,  improve=0.073573620, (0 missing)
##       description_length < 4779     to the right, improve=0.052754680, (0 missing)
##       goal               < 2900     to the left,  improve=0.028753750, (0 missing)
##       reward_length      < 11422.5  to the right, improve=0.024942440, (0 missing)
##       usa                < 0.5      to the left,  improve=0.009610843, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  -L-LL--R--RR, agree=0.642, adj=0.216, (0 split)
##       description_length < 6447     to the left,  agree=0.617, adj=0.162, (0 split)
##       category           splits as  L-------R---L--, agree=0.580, adj=0.081, (0 split)
##       goal               < 2900     to the left,  agree=0.580, adj=0.081, (0 split)
##       reward_length      < 16252.5  to the left,  agree=0.580, adj=0.081, (0 split)
## 
## Node number 3783: 99 observations,    complexity param=0.0001607786
##   mean=0.7878788, MSE=0.1671258 
##   left son=7566 (53 obs) right son=7567 (46 obs)
##   Primary splits:
##       reward_length      < 10221    to the left,  improve=0.081358350, (0 missing)
##       campaign_duration  < 40.69    to the right, improve=0.030600420, (0 missing)
##       description_length < 6523     to the left,  improve=0.026923080, (0 missing)
##       goal               < 3790     to the left,  improve=0.025821690, (0 missing)
##       mo_launched        splits as  L-L--LR-LL--, improve=0.008754799, (0 missing)
##   Surrogate splits:
##       description_length < 6202     to the left,  agree=0.636, adj=0.217, (0 split)
##       category           splits as  L-------R---L--, agree=0.616, adj=0.174, (0 split)
##       goal               < 2550     to the right, agree=0.576, adj=0.087, (0 split)
##       campaign_duration  < 29.96    to the right, agree=0.566, adj=0.065, (0 split)
##       usa                < 0.5      to the right, agree=0.566, adj=0.065, (0 split)
## 
## Node number 3784: 28 observations
##   mean=0.5, MSE=0.25 
## 
## Node number 3785: 7 observations
##   mean=1, MSE=0 
## 
## Node number 3794: 8 observations
##   mean=0.5, MSE=0.25 
## 
## Node number 3795: 19 observations
##   mean=0.9473684, MSE=0.0498615 
## 
## Node number 3796: 74 observations
##   mean=0.5405405, MSE=0.2483565 
## 
## Node number 3797: 40 observations
##   mean=0.825, MSE=0.144375 
## 
## Node number 3798: 245 observations,    complexity param=0.0001648558
##   mean=0.7061224, MSE=0.2075135 
##   left son=7596 (190 obs) right son=7597 (55 obs)
##   Primary splits:
##       description_length < 4756     to the left,  improve=0.03073018, (0 missing)
##       reward_length      < 6757     to the right, improve=0.02692899, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.01393636, (0 missing)
##       goal               < 1225     to the right, improve=0.01240853, (0 missing)
##       mo_launched        splits as  -LLLRLLRLL--, improve=0.01042049, (0 missing)
## 
## Node number 3799: 236 observations,    complexity param=0.0001352994
##   mean=0.809322, MSE=0.1543199 
##   left son=7598 (107 obs) right son=7599 (129 obs)
##   Primary splits:
##       category           splits as  R-------R---L--, improve=0.02709825, (0 missing)
##       description_length < 2182     to the left,  improve=0.02102080, (0 missing)
##       reward_length      < 6400.5   to the left,  improve=0.01772902, (0 missing)
##       mo_launched        splits as  -LRRLRRRLR--, improve=0.01592732, (0 missing)
##       campaign_duration  < 20.025   to the left,  improve=0.01300031, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 30.31    to the right, agree=0.602, adj=0.121, (0 split)
##       mo_launched        splits as  -RLRLLRRRL--, agree=0.602, adj=0.121, (0 split)
##       reward_length      < 6366     to the left,  agree=0.576, adj=0.065, (0 split)
##       description_length < 4036.5   to the right, agree=0.564, adj=0.037, (0 split)
##       social_media_count splits as  RLRR,         agree=0.559, adj=0.028, (0 split)
## 
## Node number 3852: 16 observations
##   mean=0.1875, MSE=0.1523438 
## 
## Node number 3853: 11 observations
##   mean=0.7272727, MSE=0.1983471 
## 
## Node number 3854: 40 observations,    complexity param=0.0001413784
##   mean=0.575, MSE=0.244375 
##   left son=7708 (17 obs) right son=7709 (23 obs)
##   Primary splits:
##       reward_length      < 5624.5   to the right, improve=0.14914210, (0 missing)
##       description_length < 2021     to the left,  improve=0.11596790, (0 missing)
##       mo_launched        splits as  R--RL--R-RRR, improve=0.07264091, (0 missing)
##       goal               < 2900     to the right, improve=0.03452685, (0 missing)
##       campaign_duration  < 29.72    to the right, improve=0.03132992, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 30.75    to the right, agree=0.700, adj=0.294, (0 split)
##       mo_launched        splits as  R--RL--R-RRR, agree=0.700, adj=0.294, (0 split)
##       description_length < 1668     to the left,  agree=0.675, adj=0.235, (0 split)
##       goal               < 2900     to the right, agree=0.625, adj=0.118, (0 split)
##       social_media_count splits as  RLR-,         agree=0.600, adj=0.059, (0 split)
## 
## Node number 3855: 14 observations
##   mean=0.9285714, MSE=0.06632653 
## 
## Node number 3858: 20 observations
##   mean=0.25, MSE=0.1875 
## 
## Node number 3859: 9 observations
##   mean=0.6666667, MSE=0.2222222 
## 
## Node number 3864: 29 observations,    complexity param=0.0001198046
##   mean=0.3793103, MSE=0.235434 
##   left son=7728 (21 obs) right son=7729 (8 obs)
##   Primary splits:
##       reward_length      < 4676.5   to the right, improve=0.22234250, (0 missing)
##       description_length < 1756.5   to the left,  improve=0.05937149, (0 missing)
##       goal               < 825      to the left,  improve=0.03472823, (0 missing)
##       campaign_duration  < 35       to the left,  improve=0.01469238, (0 missing)
## 
## Node number 3865: 142 observations,    complexity param=0.0001194504
##   mean=0.5633803, MSE=0.2459829 
##   left son=7730 (21 obs) right son=7731 (121 obs)
##   Primary splits:
##       description_length < 819.5    to the left,  improve=0.023480720, (0 missing)
##       campaign_duration  < 29.715   to the right, improve=0.018064720, (0 missing)
##       category           splits as  ----R-----L--L-, improve=0.017978750, (0 missing)
##       reward_length      < 4399     to the right, improve=0.006307098, (0 missing)
##       goal               < 475      to the right, improve=0.006295525, (0 missing)
## 
## Node number 3866: 25 observations
##   mean=0.52, MSE=0.2496 
## 
## Node number 3867: 33 observations
##   mean=0.8181818, MSE=0.1487603 
## 
## Node number 3888: 13 observations
##   mean=0.2307692, MSE=0.1775148 
## 
## Node number 3889: 141 observations,    complexity param=0.0001347957
##   mean=0.6312057, MSE=0.2327851 
##   left son=7778 (22 obs) right son=7779 (119 obs)
##   Primary splits:
##       campaign_duration  < 59.98    to the right, improve=0.03918099, (0 missing)
##       reward_length      < 8865.5   to the right, improve=0.02739686, (0 missing)
##       description_length < 1640.5   to the left,  improve=0.01705771, (0 missing)
##       goal               < 325      to the right, improve=0.01535785, (0 missing)
##       mo_launched        splits as  -RLRLRLL-L--, improve=0.01158212, (0 missing)
## 
## Node number 3912: 32 observations,    complexity param=0.0001696005
##   mean=0.34375, MSE=0.2255859 
##   left son=7824 (10 obs) right son=7825 (22 obs)
##   Primary splits:
##       reward_length      < 5442     to the left,  improve=0.23809520, (0 missing)
##       description_length < 1145     to the left,  improve=0.17460320, (0 missing)
##       mo_launched        splits as  --LLRR--R-RR, improve=0.06088716, (0 missing)
##       campaign_duration  < 30.85    to the left,  improve=0.03871567, (0 missing)
##       social_media_count splits as  LRL-,         improve=0.01758789, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  --LRRR--R-LR, agree=0.750, adj=0.2, (0 split)
##       description_length < 805      to the left,  agree=0.750, adj=0.2, (0 split)
##       goal               < 1750     to the left,  agree=0.719, adj=0.1, (0 split)
## 
## Node number 3913: 25 observations,    complexity param=0.0001236756
##   mean=0.68, MSE=0.2176 
##   left son=7826 (17 obs) right son=7827 (8 obs)
##   Primary splits:
##       mo_launched        splits as  --RRLL-LL-L-, improve=0.221453300, (0 missing)
##       campaign_duration  < 32.52    to the right, improve=0.044117650, (0 missing)
##       description_length < 1408.5   to the right, improve=0.024714050, (0 missing)
##       reward_length      < 4320     to the left,  improve=0.021066760, (0 missing)
##       goal               < 2800     to the left,  improve=0.008069137, (0 missing)
##   Surrogate splits:
##       campaign_duration < 66.03    to the left,  agree=0.76, adj=0.25, (0 split)
##       reward_length     < 5164     to the left,  agree=0.76, adj=0.25, (0 split)
## 
## Node number 3914: 7 observations
##   mean=0.1428571, MSE=0.122449 
## 
## Node number 3915: 33 observations
##   mean=0.8181818, MSE=0.1487603 
## 
## Node number 3970: 24 observations,    complexity param=0.0001099933
##   mean=0.25, MSE=0.1875 
##   left son=7940 (14 obs) right son=7941 (10 obs)
##   Primary splits:
##       description_length < 519.5    to the right, improve=0.23809520, (0 missing)
##       campaign_duration  < 51.635   to the left,  improve=0.08571429, (0 missing)
##       social_media_count splits as  RLL-,         improve=0.06172840, (0 missing)
##       goal               < 2100     to the left,  improve=0.04166667, (0 missing)
##       reward_length      < 5294     to the left,  improve=0.03703704, (0 missing)
##   Surrogate splits:
##       campaign_duration < 59.98    to the left,  agree=0.708, adj=0.3, (0 split)
##       reward_length     < 4811     to the right, agree=0.708, adj=0.3, (0 split)
##       goal              < 2450     to the right, agree=0.667, adj=0.2, (0 split)
##       mo_launched       splits as  -L--L-RL----, agree=0.625, adj=0.1, (0 split)
## 
## Node number 3971: 31 observations,    complexity param=0.0001180846
##   mean=0.5483871, MSE=0.2476587 
##   left son=7942 (23 obs) right son=7943 (8 obs)
##   Primary splits:
##       reward_length      < 6001     to the left,  improve=0.14982190, (0 missing)
##       description_length < 882.5    to the right, improve=0.11226990, (0 missing)
##       campaign_duration  < 47.96    to the right, improve=0.09151896, (0 missing)
##       category           splits as  ------R---L----, improve=0.03241297, (0 missing)
##       goal               < 2100     to the right, improve=0.02310924, (0 missing)
##   Surrogate splits:
##       campaign_duration < 37.925   to the right, agree=0.806, adj=0.25, (0 split)
## 
## Node number 3986: 16 observations
##   mean=0.3125, MSE=0.2148438 
## 
## Node number 3987: 7 observations
##   mean=0.8571429, MSE=0.122449 
## 
## Node number 3996: 15 observations
##   mean=0.2666667, MSE=0.1955556 
## 
## Node number 3997: 64 observations,    complexity param=0.0001607863
##   mean=0.671875, MSE=0.220459 
##   left son=7994 (17 obs) right son=7995 (47 obs)
##   Primary splits:
##       campaign_duration  < 59.025   to the right, improve=0.11100390, (0 missing)
##       reward_length      < 6906.5   to the left,  improve=0.08368929, (0 missing)
##       category           splits as  ------L---R----, improve=0.06647429, (0 missing)
##       description_length < 882      to the right, improve=0.04856581, (0 missing)
##       social_media_count splits as  RRLR, improve=0.03297557, (0 missing)
##   Surrogate splits:
##       description_length < 251.5    to the left,  agree=0.75, adj=0.059, (0 split)
## 
## Node number 3998: 138 observations,    complexity param=0.0001304682
##   mean=0.7101449, MSE=0.2058391 
##   left son=7996 (8 obs) right son=7997 (130 obs)
##   Primary splits:
##       campaign_duration  < 36.875   to the left,  improve=0.033580260, (0 missing)
##       description_length < 1067     to the left,  improve=0.031887760, (0 missing)
##       reward_length      < 11922.5  to the left,  improve=0.019733970, (0 missing)
##       goal               < 1550     to the left,  improve=0.012952290, (0 missing)
##       social_media_count splits as  LLRL,         improve=0.004783474, (0 missing)
## 
## Node number 3999: 19 observations
##   mean=1, MSE=0 
## 
## Node number 4000: 68 observations,    complexity param=0.0001373511
##   mean=0.4558824, MSE=0.2480536 
##   left son=8000 (43 obs) right son=8001 (25 obs)
##   Primary splits:
##       reward_length      < 5931     to the left,  improve=0.07945419, (0 missing)
##       social_media_count splits as  RLRR, improve=0.06538797, (0 missing)
##       description_length < 639.5    to the right, improve=0.05884917, (0 missing)
##       category           splits as  ----L-R---L--R-, improve=0.03653884, (0 missing)
##       campaign_duration  < 14.755   to the left,  improve=0.01339611, (0 missing)
##   Surrogate splits:
##       description_length < 135      to the right, agree=0.691, adj=0.16, (0 split)
##       mo_launched        splits as  -L-----R--L-, agree=0.676, adj=0.12, (0 split)
##       goal               < 3800     to the left,  agree=0.676, adj=0.12, (0 split)
##       social_media_count splits as  LLLR, agree=0.647, adj=0.04, (0 split)
##       category           splits as  ----L-R---L--L-, agree=0.647, adj=0.04, (0 split)
## 
## Node number 4001: 56 observations
##   mean=0.6607143, MSE=0.2241709 
## 
## Node number 4002: 206 observations,    complexity param=0.0001309726
##   mean=0.6601942, MSE=0.2243378 
##   left son=8004 (7 obs) right son=8005 (199 obs)
##   Primary splits:
##       goal               < 3972.5   to the right, improve=0.021988690, (0 missing)
##       description_length < 731      to the right, improve=0.020749500, (0 missing)
##       campaign_duration  < 23.325   to the right, improve=0.011809600, (0 missing)
##       reward_length      < 4233.5   to the left,  improve=0.008412109, (0 missing)
##       mo_launched        splits as  -RR--RLR--R-, improve=0.006646374, (0 missing)
## 
## Node number 4003: 15 observations
##   mean=0.9333333, MSE=0.06222222 
## 
## Node number 4004: 126 observations,    complexity param=0.0001192254
##   mean=0.6269841, MSE=0.233875 
##   left son=8008 (10 obs) right son=8009 (116 obs)
##   Primary splits:
##       reward_length      < 4307.5   to the left,  improve=0.03941046, (0 missing)
##       description_length < 911      to the left,  improve=0.03710725, (0 missing)
##       category           splits as  ----L-R---L----, improve=0.02261866, (0 missing)
##       goal               < 3100     to the right, improve=0.01784308, (0 missing)
##       mo_launched        splits as  R--LL---RR-R, improve=0.01501999, (0 missing)
## 
## Node number 4005: 109 observations
##   mean=0.8073394, MSE=0.1555425 
## 
## Node number 4008: 18 observations
##   mean=0.2777778, MSE=0.2006173 
## 
## Node number 4009: 16 observations
##   mean=0.6875, MSE=0.2148438 
## 
## Node number 4010: 20 observations,    complexity param=0.0001035159
##   mean=0.6, MSE=0.24 
##   left son=8020 (12 obs) right son=8021 (8 obs)
##   Primary splits:
##       reward_length      < 10325    to the left,  improve=0.21006940, (0 missing)
##       description_length < 870.5    to the left,  improve=0.06250000, (0 missing)
##       goal               < 1300     to the right, improve=0.04166667, (0 missing)
##   Surrogate splits:
##       goal               < 1875     to the left,  agree=0.70, adj=0.250, (0 split)
##       description_length < 495.5    to the right, agree=0.65, adj=0.125, (0 split)
## 
## Node number 4011: 24 observations
##   mean=0.9583333, MSE=0.03993056 
## 
## Node number 4032: 27 observations,    complexity param=0.0001730017
##   mean=0.2592593, MSE=0.1920439 
##   left son=8064 (13 obs) right son=8065 (14 obs)
##   Primary splits:
##       campaign_duration  < 31.17    to the left,  improve=0.32500000, (0 missing)
##       mo_launched        splits as  -LLRRR-R--LR, improve=0.05714286, (0 missing)
##       goal               < 1750     to the left,  improve=0.03952068, (0 missing)
##       description_length < 1480.5   to the left,  improve=0.03952068, (0 missing)
##       reward_length      < 4161.5   to the right, improve=0.03952068, (0 missing)
##   Surrogate splits:
##       description_length < 1981     to the right, agree=0.704, adj=0.385, (0 split)
##       mo_launched        splits as  -RRLRR-R--LR, agree=0.630, adj=0.231, (0 split)
##       social_media_count splits as  RRL-,         agree=0.593, adj=0.154, (0 split)
##       goal               < 1100     to the left,  agree=0.593, adj=0.154, (0 split)
##       reward_length      < 4093     to the left,  agree=0.593, adj=0.154, (0 split)
## 
## Node number 4033: 10 observations
##   mean=1, MSE=0 
## 
## Node number 4034: 710 observations,    complexity param=0.0001862853
##   mean=0.6830986, MSE=0.2164749 
##   left son=8068 (97 obs) right son=8069 (613 obs)
##   Primary splits:
##       description_length < 1324.5   to the left,  improve=0.006662467, (0 missing)
##       reward_length      < 7581.5   to the right, improve=0.004814573, (0 missing)
##       goal               < 3525     to the right, improve=0.004630529, (0 missing)
##       campaign_duration  < 59.75    to the right, improve=0.003767622, (0 missing)
##       mo_launched        splits as  ----RLRRL--L, improve=0.001883080, (0 missing)
## 
## Node number 4035: 707 observations,    complexity param=0.0001439484
##   mean=0.7680339, MSE=0.1781578 
##   left son=8070 (508 obs) right son=8071 (199 obs)
##   Primary splits:
##       social_media_count splits as  LRLR,         improve=0.009617724, (0 missing)
##       reward_length      < 5871.5   to the left,  improve=0.009546030, (0 missing)
##       goal               < 1775     to the right, improve=0.007479812, (0 missing)
##       usa                < 0.5      to the left,  improve=0.003125381, (0 missing)
##       mo_launched        splits as  LRRL-----LR-, improve=0.002951041, (0 missing)
## 
## Node number 4036: 23 observations,    complexity param=0.0001251266
##   mean=0.4347826, MSE=0.2457467 
##   left son=8072 (15 obs) right son=8073 (8 obs)
##   Primary splits:
##       reward_length      < 8072     to the left,  improve=0.21564100, (0 missing)
##       campaign_duration  < 37.16    to the left,  improve=0.15157340, (0 missing)
##       goal               < 675      to the right, improve=0.11819290, (0 missing)
##       mo_launched        splits as  -R--LR----LR, improve=0.05686391, (0 missing)
##       social_media_count splits as  LRL-,         improve=0.04568765, (0 missing)
##   Surrogate splits:
##       goal               < 350      to the right, agree=0.783, adj=0.375, (0 split)
##       description_length < 4220     to the left,  agree=0.739, adj=0.250, (0 split)
##       campaign_duration  < 30.02    to the right, agree=0.696, adj=0.125, (0 split)
##       usa                < 0.5      to the right, agree=0.696, adj=0.125, (0 split)
## 
## Node number 4037: 27 observations
##   mean=0.962963, MSE=0.03566529 
## 
## Node number 4040: 179 observations,    complexity param=0.0002008804
##   mean=0.6424581, MSE=0.2297057 
##   left son=8080 (120 obs) right son=8081 (59 obs)
##   Primary splits:
##       description_length < 1903     to the left,  improve=0.05086250, (0 missing)
##       mo_launched        splits as  --RRLRRLLL--, improve=0.02931428, (0 missing)
##       campaign_duration  < 60.02    to the left,  improve=0.02264914, (0 missing)
##       reward_length      < 6482     to the left,  improve=0.01876387, (0 missing)
##       goal               < 3312.5   to the right, improve=0.01043782, (0 missing)
##   Surrogate splits:
##       campaign_duration < 60.02    to the left,  agree=0.687, adj=0.051, (0 split)
##       goal              < 175      to the right, agree=0.682, adj=0.034, (0 split)
## 
## Node number 4041: 176 observations,    complexity param=0.0001480187
##   mean=0.7897727, MSE=0.1660318 
##   left son=8082 (8 obs) right son=8083 (168 obs)
##   Primary splits:
##       social_media_count splits as  RRL-,         improve=0.04934122, (0 missing)
##       goal               < 3250     to the right, improve=0.03890268, (0 missing)
##       reward_length      < 4896.5   to the left,  improve=0.03866466, (0 missing)
##       mo_launched        splits as  --LLRRRRRR--, improve=0.03428608, (0 missing)
##       campaign_duration  < 63.09    to the right, improve=0.01780624, (0 missing)
## 
## Node number 4042: 11 observations
##   mean=0.4545455, MSE=0.2479339 
## 
## Node number 4043: 175 observations
##   mean=0.8628571, MSE=0.1183347 
## 
## Node number 4044: 69 observations,    complexity param=0.0001591987
##   mean=0.6521739, MSE=0.2268431 
##   left son=8088 (49 obs) right son=8089 (20 obs)
##   Primary splits:
##       mo_launched        splits as  LLRRRLLLRLLL, improve=0.11051020, (0 missing)
##       reward_length      < 8119.5   to the left,  improve=0.06683948, (0 missing)
##       description_length < 2795     to the left,  improve=0.02645503, (0 missing)
##       social_media_count splits as  LRLR,         improve=0.02304075, (0 missing)
##       goal               < 1310     to the right, improve=0.02001082, (0 missing)
##   Surrogate splits:
##       campaign_duration < 60.02    to the left,  agree=0.725, adj=0.05, (0 split)
## 
## Node number 4045: 27 observations
##   mean=0.9259259, MSE=0.06858711 
## 
## Node number 4046: 608 observations,    complexity param=0.0001591987
##   mean=0.8486842, MSE=0.1284193 
##   left son=8092 (94 obs) right son=8093 (514 obs)
##   Primary splits:
##       goal               < 1150     to the left,  improve=0.018716270, (0 missing)
##       reward_length      < 4529     to the left,  improve=0.007068105, (0 missing)
##       mo_launched        splits as  RLRRLRLLLLLL, improve=0.006710137, (0 missing)
##       description_length < 2264     to the right, improve=0.005930218, (0 missing)
##       category           splits as  -RRRLRL--R----R, improve=0.005751438, (0 missing)
##   Surrogate splits:
##       category splits as  -RRRRLR--R----R, agree=0.847, adj=0.011, (0 split)
## 
## Node number 4047: 42 observations
##   mean=0.9761905, MSE=0.02324263 
## 
## Node number 4048: 39 observations,    complexity param=0.0001123551
##   mean=0.5384615, MSE=0.2485207 
##   left son=8096 (13 obs) right son=8097 (26 obs)
##   Primary splits:
##       mo_launched        splits as  ---LR-R-LRR-, improve=0.10714290, (0 missing)
##       description_length < 2772.5   to the right, improve=0.10701550, (0 missing)
##       reward_length      < 13452.5  to the left,  improve=0.06913580, (0 missing)
##       campaign_duration  < 30.735   to the right, improve=0.04761905, (0 missing)
##       goal               < 2750     to the left,  improve=0.01604010, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 43.515   to the right, agree=0.769, adj=0.308, (0 split)
##       description_length < 1588.5   to the left,  agree=0.769, adj=0.308, (0 split)
##       goal               < 675      to the left,  agree=0.718, adj=0.154, (0 split)
## 
## Node number 4049: 62 observations
##   mean=0.7419355, MSE=0.1914672 
## 
## Node number 4050: 244 observations,    complexity param=0.0001237837
##   mean=0.7540984, MSE=0.185434 
##   left son=8100 (139 obs) right son=8101 (105 obs)
##   Primary splits:
##       goal               < 2180     to the right, improve=0.022593500, (0 missing)
##       reward_length      < 15934.5  to the left,  improve=0.020261130, (0 missing)
##       campaign_duration  < 59.74    to the left,  improve=0.018478580, (0 missing)
##       description_length < 3522     to the left,  improve=0.012729230, (0 missing)
##       mo_launched        splits as  ---RL-L-LLL-, improve=0.007704783, (0 missing)
##   Surrogate splits:
##       category           splits as  -LL-RR-R--L--L-, agree=0.602, adj=0.076, (0 split)
##       reward_length      < 9216     to the right, agree=0.598, adj=0.067, (0 split)
##       campaign_duration  < 64.995   to the left,  agree=0.594, adj=0.057, (0 split)
##       mo_launched        splits as  ---LL-L-LLR-, agree=0.582, adj=0.029, (0 split)
##       description_length < 1713.5   to the right, agree=0.582, adj=0.029, (0 split)
## 
## Node number 4051: 129 observations
##   mean=0.8992248, MSE=0.09061955 
## 
## Node number 4068: 31 observations,    complexity param=0.0001631992
##   mean=0.4516129, MSE=0.2476587 
##   left son=8136 (12 obs) right son=8137 (19 obs)
##   Primary splits:
##       campaign_duration  < 20.395   to the left,  improve=0.2070618, (0 missing)
##       description_length < 4142.5   to the left,  improve=0.1422287, (0 missing)
##       goal               < 2350     to the right, improve=0.1036599, (0 missing)
##       reward_length      < 4489.5   to the right, improve=0.0812575, (0 missing)
##       mo_launched        splits as  ---LRLRL-L--, improve=0.0782159, (0 missing)
##   Surrogate splits:
##       description_length < 3839.5   to the left,  agree=0.742, adj=0.333, (0 split)
##       mo_launched        splits as  ---RRLRL-R--, agree=0.677, adj=0.167, (0 split)
##       reward_length      < 4242.5   to the left,  agree=0.677, adj=0.167, (0 split)
##       social_media_count splits as  LRR-, agree=0.645, adj=0.083, (0 split)
##       category           splits as  ----------R--L-, agree=0.645, adj=0.083, (0 split)
## 
## Node number 4069: 10 observations
##   mean=1, MSE=0 
## 
## Node number 4072: 10 observations
##   mean=0.3, MSE=0.21 
## 
## Node number 4073: 34 observations
##   mean=0.6764706, MSE=0.2188581 
## 
## Node number 4080: 7 observations
##   mean=0.2857143, MSE=0.2040816 
## 
## Node number 4081: 83 observations,    complexity param=0.0001195038
##   mean=0.7590361, MSE=0.1829003 
##   left son=8162 (36 obs) right son=8163 (47 obs)
##   Primary splits:
##       campaign_duration  < 24.995   to the right, improve=0.03573117, (0 missing)
##       goal               < 925      to the right, improve=0.03386243, (0 missing)
##       reward_length      < 7975     to the right, improve=0.01927627, (0 missing)
##       description_length < 1884.5   to the right, improve=0.01487097, (0 missing)
##       social_media_count splits as  LLRL,         improve=0.01121240, (0 missing)
##   Surrogate splits:
##       description_length < 2360.5   to the right, agree=0.614, adj=0.111, (0 split)
##       reward_length      < 9157     to the left,  agree=0.614, adj=0.111, (0 split)
##       goal               < 2700     to the right, agree=0.590, adj=0.056, (0 split)
##       usa                < 0.5      to the left,  agree=0.578, adj=0.028, (0 split)
##       social_media_count splits as  RRLR,         agree=0.578, adj=0.028, (0 split)
## 
## Node number 4596: 44 observations,    complexity param=0.0001743257
##   mean=0.2272727, MSE=0.1756198 
##   left son=9192 (24 obs) right son=9193 (20 obs)
##   Primary splits:
##       mo_launched        splits as  L-LLLR---RRL, improve=0.23539220, (0 missing)
##       campaign_duration  < 48.065   to the right, improve=0.08650519, (0 missing)
##       description_length < 2160     to the left,  improve=0.08621672, (0 missing)
##       goal               < 5250     to the right, improve=0.05661925, (0 missing)
##       reward_length      < 3958     to the left,  improve=0.02761438, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 25.305   to the right, agree=0.659, adj=0.25, (0 split)
##       goal               < 5250     to the right, agree=0.659, adj=0.25, (0 split)
##       reward_length      < 3947     to the left,  agree=0.659, adj=0.25, (0 split)
##       usa                < 0.5      to the right, agree=0.614, adj=0.15, (0 split)
##       description_length < 2160     to the left,  agree=0.614, adj=0.15, (0 split)
## 
## Node number 4597: 36 observations,    complexity param=0.0001743257
##   mean=0.5, MSE=0.25 
##   left son=9194 (24 obs) right son=9195 (12 obs)
##   Primary splits:
##       reward_length      < 3412.5   to the left,  improve=0.22222220, (0 missing)
##       description_length < 1678     to the right, improve=0.12315270, (0 missing)
##       mo_launched        splits as  R-RRLR---RLR, improve=0.10288070, (0 missing)
##       social_media_count splits as  RLRL,         improve=0.07142857, (0 missing)
##       campaign_duration  < 28.12    to the right, improve=0.04433498, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  L-RLLL---LLR, agree=0.778, adj=0.333, (0 split)
##       description_length < 1529     to the right, agree=0.722, adj=0.167, (0 split)
## 
## Node number 4598: 57 observations
##   mean=0.4736842, MSE=0.2493075 
## 
## Node number 4599: 22 observations
##   mean=0.7272727, MSE=0.1983471 
## 
## Node number 5012: 12 observations
##   mean=0.08333333, MSE=0.07638889 
## 
## Node number 5013: 14 observations
##   mean=0.6428571, MSE=0.2295918 
## 
## Node number 5014: 15 observations
##   mean=0.4, MSE=0.24 
## 
## Node number 5015: 16 observations
##   mean=0.875, MSE=0.109375 
## 
## Node number 5052: 15 observations
##   mean=0.5333333, MSE=0.2488889 
## 
## Node number 5053: 100 observations,    complexity param=0.0001117706
##   mean=0.8, MSE=0.16 
##   left son=10106 (29 obs) right son=10107 (71 obs)
##   Primary splits:
##       social_media_count splits as  RLL-,         improve=0.08207868, (0 missing)
##       reward_length      < 2562     to the left,  improve=0.03693529, (0 missing)
##       campaign_duration  < 57.385   to the right, improve=0.03515625, (0 missing)
##       description_length < 2352     to the right, improve=0.02385658, (0 missing)
##       mo_launched        splits as  LLRRLLR-R-LL, improve=0.01723786, (0 missing)
##   Surrogate splits:
##       description_length < 6034     to the right, agree=0.73, adj=0.069, (0 split)
##       campaign_duration  < 88.655   to the right, agree=0.72, adj=0.034, (0 split)
## 
## Node number 5174: 84 observations,    complexity param=0.0001040307
##   mean=0.1785714, MSE=0.1466837 
##   left son=10348 (66 obs) right son=10349 (18 obs)
##   Primary splits:
##       category           splits as  L-------R---LL-, improve=0.08224272, (0 missing)
##       goal               < 20327    to the right, improve=0.05232681, (0 missing)
##       description_length < 2716     to the left,  improve=0.04198758, (0 missing)
##       campaign_duration  < 29.98    to the left,  improve=0.03275759, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.03275759, (0 missing)
##   Surrogate splits:
##       reward_length < 11246.5  to the left,  agree=0.798, adj=0.056, (0 split)
## 
## Node number 5175: 185 observations,    complexity param=0.0001303732
##   mean=0.3081081, MSE=0.2131775 
##   left son=10350 (96 obs) right son=10351 (89 obs)
##   Primary splits:
##       category           splits as  L-------L---RR-, improve=0.05037109, (0 missing)
##       reward_length      < 7925.5   to the left,  improve=0.02393889, (0 missing)
##       campaign_duration  < 59.545   to the right, improve=0.02209187, (0 missing)
##       description_length < 1919.5   to the left,  improve=0.02012712, (0 missing)
##       social_media_count splits as  LLR-, improve=0.01279104, (0 missing)
##   Surrogate splits:
##       goal               < 23660    to the left,  agree=0.595, adj=0.157, (0 split)
##       campaign_duration  < 30.76    to the left,  agree=0.589, adj=0.146, (0 split)
##       mo_launched        splits as  --LR-LRLLR-L, agree=0.589, adj=0.146, (0 split)
##       social_media_count splits as  RLL-,         agree=0.578, adj=0.124, (0 split)
##       description_length < 4170     to the right, agree=0.568, adj=0.101, (0 split)
## 
## Node number 5176: 84 observations
##   mean=0.1904762, MSE=0.154195 
## 
## Node number 5177: 144 observations,    complexity param=0.0001009297
##   mean=0.2986111, MSE=0.2094425 
##   left son=10354 (102 obs) right son=10355 (42 obs)
##   Primary splits:
##       category           splits as  R-------L---LR-, improve=0.03320518, (0 missing)
##       reward_length      < 10799.5  to the right, improve=0.02838284, (0 missing)
##       campaign_duration  < 30.02    to the left,  improve=0.02394818, (0 missing)
##       description_length < 2763     to the left,  improve=0.01475640, (0 missing)
##       goal               < 14900    to the right, improve=0.01417548, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 60.02    to the left,  agree=0.715, adj=0.024, (0 split)
##       description_length < 3596.5   to the left,  agree=0.715, adj=0.024, (0 split)
## 
## Node number 5178: 52 observations
##   mean=0.3269231, MSE=0.2200444 
## 
## Node number 5179: 26 observations,    complexity param=0.000119573
##   mean=0.5769231, MSE=0.2440828 
##   left son=10358 (10 obs) right son=10359 (16 obs)
##   Primary splits:
##       reward_length      < 10689    to the right, improve=0.19636360, (0 missing)
##       description_length < 4060     to the left,  improve=0.05454545, (0 missing)
##       goal               < 10500    to the right, improve=0.03878788, (0 missing)
##       social_media_count splits as  LR--,         improve=0.02848029, (0 missing)
##       mo_launched        splits as  RL--L-LL-RRL, improve=0.02848029, (0 missing)
##   Surrogate splits:
##       social_media_count splits as  RL--,         agree=0.731, adj=0.3, (0 split)
##       campaign_duration  < 24.87    to the left,  agree=0.692, adj=0.2, (0 split)
##       mo_launched        splits as  RR--R-RR-RRL, agree=0.692, adj=0.2, (0 split)
##       goal               < 9875     to the left,  agree=0.692, adj=0.2, (0 split)
## 
## Node number 5180: 31 observations
##   mean=0.1612903, MSE=0.1352758 
## 
## Node number 5181: 57 observations
##   mean=0.4561404, MSE=0.2480763 
## 
## Node number 5182: 65 observations,    complexity param=0.0001276196
##   mean=0.4461538, MSE=0.2471006 
##   left son=10364 (37 obs) right son=10365 (28 obs)
##   Primary splits:
##       reward_length      < 6984     to the right, improve=0.04806284, (0 missing)
##       campaign_duration  < 26.1     to the right, improve=0.03162630, (0 missing)
##       description_length < 3752     to the left,  improve=0.02897510, (0 missing)
##       goal               < 14500    to the left,  improve=0.02873563, (0 missing)
##       mo_launched        splits as  --RL-R--R---, improve=0.02859611, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 17       to the right, agree=0.615, adj=0.107, (0 split)
##       video_status       < 0.5      to the right, agree=0.615, adj=0.107, (0 split)
##       category           splits as  R-------L------, agree=0.600, adj=0.071, (0 split)
##       description_length < 3343     to the right, agree=0.585, adj=0.036, (0 split)
## 
## Node number 5183: 15 observations
##   mean=0.8, MSE=0.16 
## 
## Node number 5190: 12 observations
##   mean=0, MSE=0 
## 
## Node number 5191: 57 observations,    complexity param=0.0001145255
##   mean=0.3333333, MSE=0.2222222 
##   left son=10382 (9 obs) right son=10383 (48 obs)
##   Primary splits:
##       campaign_duration  < 42.79    to the right, improve=0.09375000, (0 missing)
##       description_length < 6691.5   to the left,  improve=0.06493506, (0 missing)
##       reward_length      < 6772.5   to the left,  improve=0.05315615, (0 missing)
##       social_media_count splits as  LRR-,         improve=0.02857143, (0 missing)
##       mo_launched        splits as  R-LRL--LL---, improve=0.01905488, (0 missing)
## 
## Node number 5208: 84 observations,    complexity param=0.0001056284
##   mean=0.2738095, MSE=0.1988379 
##   left son=10416 (35 obs) right son=10417 (49 obs)
##   Primary splits:
##       mo_launched        splits as  -R-L--R-LR-L, improve=0.06160269, (0 missing)
##       description_length < 6196     to the right, improve=0.05582187, (0 missing)
##       reward_length      < 5875     to the left,  improve=0.04524590, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.03968939, (0 missing)
##       social_media_count splits as  RLL-,         improve=0.01871095, (0 missing)
##   Surrogate splits:
##       goal               < 10886    to the left,  agree=0.631, adj=0.114, (0 split)
##       campaign_duration  < 30.02    to the left,  agree=0.607, adj=0.057, (0 split)
##       description_length < 10069    to the right, agree=0.607, adj=0.057, (0 split)
##       reward_length      < 11105    to the right, agree=0.607, adj=0.057, (0 split)
##       social_media_count splits as  RRL-,         agree=0.595, adj=0.029, (0 split)
## 
## Node number 5209: 87 observations,    complexity param=0.0002064971
##   mean=0.4827586, MSE=0.2497027 
##   left son=10418 (66 obs) right son=10419 (21 obs)
##   Primary splits:
##       social_media_count splits as  LRL-, improve=0.09929224, (0 missing)
##       goal               < 16750    to the right, improve=0.04581069, (0 missing)
##       category           splits as  L-------R---L--, improve=0.03724308, (0 missing)
##       mo_launched        splits as  -R-L--L-RL-R, improve=0.02406271, (0 missing)
##       description_length < 8673     to the right, improve=0.01737168, (0 missing)
##   Surrogate splits:
##       reward_length      < 5441.5   to the right, agree=0.793, adj=0.143, (0 split)
##       description_length < 4722.5   to the right, agree=0.770, adj=0.048, (0 split)
## 
## Node number 5232: 103 observations,    complexity param=0.0001486531
##   mean=0.3203883, MSE=0.2177397 
##   left son=10464 (24 obs) right son=10465 (79 obs)
##   Primary splits:
##       campaign_duration  < 39.56    to the right, improve=0.07840521, (0 missing)
##       description_length < 9060.5   to the left,  improve=0.03695145, (0 missing)
##       reward_length      < 5656     to the left,  improve=0.03403303, (0 missing)
##       goal               < 14500    to the right, improve=0.02110454, (0 missing)
##       social_media_count splits as  LRL-,         improve=0.01321678, (0 missing)
## 
## Node number 5233: 16 observations
##   mean=0.625, MSE=0.234375 
## 
## Node number 5238: 52 observations,    complexity param=0.0001210678
##   mean=0.5, MSE=0.25 
##   left son=10476 (32 obs) right son=10477 (20 obs)
##   Primary splits:
##       goal               < 28750    to the right, improve=0.10000000, (0 missing)
##       description_length < 5706.5   to the left,  improve=0.08571429, (0 missing)
##       campaign_duration  < 30.02    to the right, improve=0.06459948, (0 missing)
##       reward_length      < 10692    to the left,  improve=0.04545455, (0 missing)
##       mo_launched        splits as  RR--R--R-L-R, improve=0.03333333, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 29.88    to the right, agree=0.692, adj=0.20, (0 split)
##       reward_length      < 6541     to the right, agree=0.654, adj=0.10, (0 split)
##       mo_launched        splits as  LL--L--L-L-R, agree=0.635, adj=0.05, (0 split)
##       description_length < 6356     to the right, agree=0.635, adj=0.05, (0 split)
## 
## Node number 5239: 39 observations
##   mean=0.7179487, MSE=0.2024984 
## 
## Node number 5318: 267 observations,    complexity param=0.0001262147
##   mean=0.3370787, MSE=0.2234566 
##   left son=10636 (257 obs) right son=10637 (10 obs)
##   Primary splits:
##       description_length < 9555     to the left,  improve=0.022935000, (0 missing)
##       campaign_duration  < 62.25    to the left,  improve=0.012037200, (0 missing)
##       mo_launched        splits as  L-R--RR--L-R, improve=0.008354352, (0 missing)
##       reward_length      < 8446     to the left,  improve=0.006498435, (0 missing)
##       usa                < 0.5      to the left,  improve=0.006115727, (0 missing)
## 
## Node number 5319: 60 observations
##   mean=0.4666667, MSE=0.2488889 
## 
## Node number 5322: 8 observations
##   mean=0, MSE=0 
## 
## Node number 5323: 227 observations,    complexity param=0.0001753324
##   mean=0.4713656, MSE=0.2491801 
##   left son=10646 (34 obs) right son=10647 (193 obs)
##   Primary splits:
##       reward_length      < 5427.5   to the left,  improve=0.030193960, (0 missing)
##       goal               < 4997     to the right, improve=0.023626180, (0 missing)
##       campaign_duration  < 22.695   to the left,  improve=0.020909890, (0 missing)
##       description_length < 4508     to the right, improve=0.019000580, (0 missing)
##       mo_launched        splits as  -R-LR--LL-L-, improve=0.003154081, (0 missing)
##   Surrogate splits:
##       campaign_duration < 39.98    to the right, agree=0.859, adj=0.059, (0 split)
## 
## Node number 5326: 52 observations,    complexity param=0.0001405671
##   mean=0.5192308, MSE=0.2496302 
##   left son=10652 (41 obs) right son=10653 (11 obs)
##   Primary splits:
##       description_length < 5858     to the right, improve=0.09605322, (0 missing)
##       mo_launched        splits as  -L-RL--LL-L-, improve=0.03878788, (0 missing)
##       goal               < 5200     to the right, improve=0.02419753, (0 missing)
##       reward_length      < 6723     to the left,  improve=0.02223167, (0 missing)
##       campaign_duration  < 22.635   to the left,  improve=0.01515152, (0 missing)
##   Surrogate splits:
##       reward_length < 5609     to the right, agree=0.827, adj=0.182, (0 split)
## 
## Node number 5327: 28 observations,    complexity param=0.0001271248
##   mean=0.75, MSE=0.1875 
##   left son=10654 (9 obs) right son=10655 (19 obs)
##   Primary splits:
##       reward_length      < 7029     to the left,  improve=0.23586740, (0 missing)
##       mo_launched        splits as  -R-LL--RR-L-, improve=0.15789470, (0 missing)
##       category           splits as  --------R---L--, improve=0.08376068, (0 missing)
##       goal               < 7225     to the left,  improve=0.06666667, (0 missing)
##       description_length < 5945     to the left,  improve=0.06666667, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  -R-RR--RL-R-, agree=0.714, adj=0.111, (0 split)
##       description_length < 5595     to the left,  agree=0.714, adj=0.111, (0 split)
## 
## Node number 5334: 7 observations
##   mean=0.1428571, MSE=0.122449 
## 
## Node number 5335: 166 observations,    complexity param=0.0001481675
##   mean=0.5361446, MSE=0.2486936 
##   left son=10670 (128 obs) right son=10671 (38 obs)
##   Primary splits:
##       reward_length      < 7994     to the left,  improve=0.03630037, (0 missing)
##       description_length < 4254     to the left,  improve=0.03427256, (0 missing)
##       campaign_duration  < 20.195   to the left,  improve=0.02271553, (0 missing)
##       goal               < 6585     to the left,  improve=0.02075141, (0 missing)
##       mo_launched        splits as  L-----RLLLRR, improve=0.01353002, (0 missing)
## 
## Node number 5338: 47 observations,    complexity param=0.0001480224
##   mean=0.4893617, MSE=0.2498868 
##   left son=10676 (12 obs) right son=10677 (35 obs)
##   Primary splits:
##       goal               < 7100     to the right, improve=0.14287440, (0 missing)
##       campaign_duration  < 29.98    to the right, improve=0.09320652, (0 missing)
##       reward_length      < 5591.5   to the left,  improve=0.09302914, (0 missing)
##       social_media_count splits as  RLL-,         improve=0.04703177, (0 missing)
##       description_length < 899.5    to the right, improve=0.03542961, (0 missing)
## 
## Node number 5339: 9 observations
##   mean=0.8888889, MSE=0.09876543 
## 
## Node number 5340: 91 observations,    complexity param=0.000101404
##   mean=0.6153846, MSE=0.2366864 
##   left son=10680 (81 obs) right son=10681 (10 obs)
##   Primary splits:
##       campaign_duration  < 59.98    to the left,  improve=0.04225309, (0 missing)
##       social_media_count splits as  LRL-,         improve=0.04056338, (0 missing)
##       description_length < 2417     to the right, improve=0.03502083, (0 missing)
##       reward_length      < 5913     to the right, improve=0.02063983, (0 missing)
##       mo_launched        splits as  -LLRLR------, improve=0.01728535, (0 missing)
## 
## Node number 5341: 27 observations,    complexity param=0.000101404
##   mean=0.8148148, MSE=0.1508916 
##   left son=10682 (8 obs) right son=10683 (19 obs)
##   Primary splits:
##       mo_launched        splits as  -RRRLR------, improve=0.27655500, (0 missing)
##       reward_length      < 6473.5   to the right, improve=0.09569378, (0 missing)
##       goal               < 5350     to the left,  improve=0.09235764, (0 missing)
##       category           splits as  R------------L-, improve=0.07212787, (0 missing)
##       description_length < 7037.5   to the right, improve=0.05139037, (0 missing)
##   Surrogate splits:
##       goal < 7750     to the right, agree=0.741, adj=0.125, (0 split)
## 
## Node number 5374: 20 observations,    complexity param=0.0001024705
##   mean=0.55, MSE=0.2475 
##   left son=10748 (8 obs) right son=10749 (12 obs)
##   Primary splits:
##       campaign_duration  < 24.935   to the right, improve=0.24242420, (0 missing)
##       mo_launched        splits as  RLRL---LRL--, improve=0.15518820, (0 missing)
##       description_length < 4494     to the right, improve=0.15195920, (0 missing)
##       goal               < 6100     to the left,  improve=0.05871906, (0 missing)
##       category           splits as  L-------R---RR-, improve=0.01515152, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  RRRL---LRR--, agree=0.80, adj=0.500, (0 split)
##       description_length < 3549     to the right, agree=0.75, adj=0.375, (0 split)
##       reward_length      < 9820.5   to the right, agree=0.70, adj=0.250, (0 split)
## 
## Node number 5375: 159 observations,    complexity param=0.0001024705
##   mean=0.7610063, MSE=0.1818757 
##   left son=10750 (70 obs) right son=10751 (89 obs)
##   Primary splits:
##       mo_launched        splits as  LRRR---LRL--, improve=0.03470031, (0 missing)
##       category           splits as  R-------L---LR-, improve=0.02263632, (0 missing)
##       reward_length      < 11052    to the right, improve=0.01907919, (0 missing)
##       description_length < 1915.5   to the right, improve=0.01884298, (0 missing)
##       social_media_count splits as  RLRL, improve=0.01528087, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 30.02    to the right, agree=0.616, adj=0.129, (0 split)
##       reward_length      < 9158     to the left,  agree=0.591, adj=0.071, (0 split)
##       usa                < 0.5      to the left,  agree=0.585, adj=0.057, (0 split)
##       social_media_count splits as  RLRL,         agree=0.579, adj=0.043, (0 split)
##       description_length < 6079     to the right, agree=0.579, adj=0.043, (0 split)
## 
## Node number 5446: 36 observations
##   mean=0.3055556, MSE=0.2121914 
## 
## Node number 5447: 29 observations,    complexity param=0.0001331054
##   mean=0.5172414, MSE=0.2497027 
##   left son=10894 (7 obs) right son=10895 (22 obs)
##   Primary splits:
##       goal               < 52500    to the left,  improve=0.17860240, (0 missing)
##       reward_length      < 15142.5  to the right, improve=0.08265306, (0 missing)
##       social_media_count splits as  RLL-,         improve=0.05723443, (0 missing)
##       description_length < 9047.5   to the right, improve=0.04023810, (0 missing)
##       mo_launched        splits as  -R-L-----L-R, improve=0.01771542, (0 missing)
##   Surrogate splits:
##       description_length < 7285.5   to the left,  agree=0.793, adj=0.143, (0 split)
## 
## Node number 5450: 10 observations
##   mean=0.2, MSE=0.16 
## 
## Node number 5451: 12 observations
##   mean=0.6666667, MSE=0.2222222 
## 
## Node number 5452: 30 observations
##   mean=0.1333333, MSE=0.1155556 
## 
## Node number 5453: 28 observations,    complexity param=0.000180577
##   mean=0.5, MSE=0.25 
##   left son=10906 (15 obs) right son=10907 (13 obs)
##   Primary splits:
##       reward_length      < 19492.5  to the right, improve=0.25128210, (0 missing)
##       mo_launched        splits as  L-R-LLRLR-L-, improve=0.10000000, (0 missing)
##       social_media_count splits as  RLR-,         improve=0.08888889, (0 missing)
##       goal               < 121500   to the left,  improve=0.08888889, (0 missing)
##       campaign_duration  < 31.53    to the left,  improve=0.04812834, (0 missing)
##   Surrogate splits:
##       description_length < 9564.5   to the right, agree=0.750, adj=0.462, (0 split)
##       campaign_duration  < 31.53    to the left,  agree=0.714, adj=0.385, (0 split)
##       social_media_count splits as  LLR-,         agree=0.643, adj=0.231, (0 split)
##       mo_launched        splits as  L-R-LLRLL-L-, agree=0.643, adj=0.231, (0 split)
##       goal               < 107500   to the right, agree=0.607, adj=0.154, (0 split)
## 
## Node number 5454: 53 observations,    complexity param=0.0001451602
##   mean=0.4528302, MSE=0.247775 
##   left son=10908 (44 obs) right son=10909 (9 obs)
##   Primary splits:
##       description_length < 7892     to the right, improve=0.08716838, (0 missing)
##       reward_length      < 16313    to the left,  improve=0.03725369, (0 missing)
##       goal               < 53461.5  to the left,  improve=0.03465959, (0 missing)
##       campaign_duration  < 32.265   to the left,  improve=0.03465959, (0 missing)
##       social_media_count splits as  RLR-,         improve=0.03436869, (0 missing)
## 
## Node number 5455: 53 observations
##   mean=0.6603774, MSE=0.2242791 
## 
## Node number 5474: 19 observations
##   mean=0.3157895, MSE=0.2160665 
## 
## Node number 5475: 15 observations
##   mean=0.7333333, MSE=0.1955556 
## 
## Node number 5508: 114 observations,    complexity param=0.0001496983
##   mean=0.3333333, MSE=0.2222222 
##   left son=11016 (104 obs) right son=11017 (10 obs)
##   Primary splits:
##       goal               < 22750    to the left,  improve=0.05817308, (0 missing)
##       description_length < 4039.5   to the left,  improve=0.02989130, (0 missing)
##       mo_launched        splits as  -L-R-RLL-RL-, improve=0.01876551, (0 missing)
##       reward_length      < 11950.5  to the right, improve=0.01772853, (0 missing)
##       usa                < 0.5      to the left,  improve=0.01068091, (0 missing)
## 
## Node number 5509: 38 observations
##   mean=0.5789474, MSE=0.2437673 
## 
## Node number 5510: 23 observations,    complexity param=0.0001496983
##   mean=0.2608696, MSE=0.1928166 
##   left son=11020 (15 obs) right son=11021 (8 obs)
##   Primary splits:
##       mo_launched        splits as  -LLLR-LR-RL-, improve=0.36674840, (0 missing)
##       description_length < 3095.5   to the left,  improve=0.22812970, (0 missing)
##       campaign_duration  < 31.85    to the left,  improve=0.11235610, (0 missing)
##       reward_length      < 14464.5  to the right, improve=0.05106209, (0 missing)
##       goal               < 5250     to the left,  improve=0.02970885, (0 missing)
##   Surrogate splits:
##       description_length < 3818     to the left,  agree=0.826, adj=0.500, (0 split)
##       reward_length      < 12706.5  to the right, agree=0.696, adj=0.125, (0 split)
## 
## Node number 5511: 77 observations,    complexity param=0.0001496983
##   mean=0.5844156, MSE=0.242874 
##   left son=11022 (23 obs) right son=11023 (54 obs)
##   Primary splits:
##       mo_launched        splits as  -RLRLRRR-LR-, improve=0.09816213, (0 missing)
##       description_length < 2879.5   to the right, improve=0.05787037, (0 missing)
##       reward_length      < 11944.5  to the right, improve=0.05051856, (0 missing)
##       campaign_duration  < 51.2     to the right, improve=0.02093524, (0 missing)
##       goal               < 5600     to the left,  improve=0.00805153, (0 missing)
##   Surrogate splits:
##       description_length < 4224     to the right, agree=0.766, adj=0.217, (0 split)
##       goal               < 6775     to the right, agree=0.714, adj=0.043, (0 split)
## 
## Node number 5540: 27 observations
##   mean=0.2962963, MSE=0.2085048 
## 
## Node number 5541: 151 observations,    complexity param=0.000125572
##   mean=0.5430464, MSE=0.248147 
##   left son=11082 (18 obs) right son=11083 (133 obs)
##   Primary splits:
##       campaign_duration  < 50.74    to the right, improve=0.02398626, (0 missing)
##       description_length < 4778.5   to the right, improve=0.01932648, (0 missing)
##       goal               < 8625     to the right, improve=0.01915333, (0 missing)
##       mo_launched        splits as  --LRLR-L-RLL, improve=0.01515109, (0 missing)
##       usa                < 0.5      to the left,  improve=0.01123300, (0 missing)
## 
## Node number 5542: 9 observations
##   mean=0.3333333, MSE=0.2222222 
## 
## Node number 5543: 52 observations
##   mean=0.7307692, MSE=0.1967456 
## 
## Node number 5554: 7 observations
##   mean=0.2857143, MSE=0.2040816 
## 
## Node number 5555: 36 observations
##   mean=0.8055556, MSE=0.1566358 
## 
## Node number 5568: 106 observations,    complexity param=0.0001680759
##   mean=0.3867925, MSE=0.2371841 
##   left son=11136 (92 obs) right son=11137 (14 obs)
##   Primary splits:
##       social_media_count splits as  LRL-,         improve=0.06881125, (0 missing)
##       campaign_duration  < 32.52    to the left,  improve=0.05645449, (0 missing)
##       reward_length      < 15877.5  to the right, improve=0.03562397, (0 missing)
##       description_length < 8010.5   to the left,  improve=0.03019534, (0 missing)
##       usa                < 0.5      to the left,  improve=0.02335645, (0 missing)
## 
## Node number 5569: 50 observations
##   mean=0.6, MSE=0.24 
## 
## Node number 5570: 8 observations
##   mean=0.375, MSE=0.234375 
## 
## Node number 5571: 13 observations
##   mean=1, MSE=0 
## 
## Node number 5586: 43 observations
##   mean=0.4883721, MSE=0.2498648 
## 
## Node number 5587: 9 observations
##   mean=0.8888889, MSE=0.09876543 
## 
## Node number 5704: 32 observations
##   mean=0, MSE=0 
## 
## Node number 5705: 13 observations
##   mean=0.3846154, MSE=0.2366864 
## 
## Node number 5902: 12 observations
##   mean=0.25, MSE=0.1875 
## 
## Node number 5903: 23 observations
##   mean=0.7391304, MSE=0.1928166 
## 
## Node number 5984: 23 observations
##   mean=0.1304348, MSE=0.1134216 
## 
## Node number 5985: 207 observations
##   mean=0.3816425, MSE=0.2359915 
## 
## Node number 5986: 56 observations,    complexity param=0.0001212981
##   mean=0.3392857, MSE=0.2241709 
##   left son=11972 (25 obs) right son=11973 (31 obs)
##   Primary splits:
##       description_length < 1212     to the left,  improve=0.06979305, (0 missing)
##       goal               < 11500    to the right, improve=0.06979305, (0 missing)
##       reward_length      < 5668.5   to the right, improve=0.02703852, (0 missing)
##       campaign_duration  < 45.2     to the left,  improve=0.02336686, (0 missing)
##       mo_launched        splits as  L-R--R-L--L-, improve=0.01927336, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 50.765   to the right, agree=0.679, adj=0.28, (0 split)
##       reward_length      < 5013     to the left,  agree=0.679, adj=0.28, (0 split)
##       goal               < 10500    to the right, agree=0.643, adj=0.20, (0 split)
##       mo_launched        splits as  R-R--R-L--R-, agree=0.625, adj=0.16, (0 split)
##       social_media_count splits as  RLR-,         agree=0.571, adj=0.04, (0 split)
## 
## Node number 5987: 124 observations,    complexity param=0.0001643979
##   mean=0.5806452, MSE=0.2434964 
##   left son=11974 (88 obs) right son=11975 (36 obs)
##   Primary splits:
##       reward_length      < 6756     to the right, improve=0.04818619, (0 missing)
##       social_media_count splits as  RLRR, improve=0.03116636, (0 missing)
##       category           splits as  ------R---L----, improve=0.02242283, (0 missing)
##       description_length < 1508     to the left,  improve=0.01556528, (0 missing)
##       goal               < 11543.5  to the right, improve=0.01439883, (0 missing)
##   Surrogate splits:
##       description_length < 11.5     to the right, agree=0.718, adj=0.028, (0 split)
## 
## Node number 5992: 60 observations,    complexity param=0.0001587067
##   mean=0.2666667, MSE=0.1955556 
##   left son=11984 (53 obs) right son=11985 (7 obs)
##   Primary splits:
##       campaign_duration  < 28.05    to the right, improve=0.13532220, (0 missing)
##       reward_length      < 7393     to the right, improve=0.04296875, (0 missing)
##       goal               < 7450     to the left,  improve=0.03662744, (0 missing)
##       category           splits as  ----L-R---L----, improve=0.03596404, (0 missing)
##       social_media_count splits as  RLRR, improve=0.02385658, (0 missing)
## 
## Node number 5993: 59 observations,    complexity param=0.0001221256
##   mean=0.4915254, MSE=0.2499282 
##   left son=11986 (7 obs) right son=11987 (52 obs)
##   Primary splits:
##       campaign_duration  < 22.98    to the left,  improve=0.06547935, (0 missing)
##       category           splits as  ----R-L---R----, improve=0.05959281, (0 missing)
##       social_media_count splits as  LRR-, improve=0.05153109, (0 missing)
##       description_length < 561      to the left,  improve=0.03821359, (0 missing)
##       mo_launched        splits as  L-RR--LR---R, improve=0.02021518, (0 missing)
## 
## Node number 5994: 9 observations
##   mean=0.1111111, MSE=0.09876543 
## 
## Node number 5995: 121 observations,    complexity param=0.0001511064
##   mean=0.5950413, MSE=0.2409671 
##   left son=11990 (16 obs) right son=11991 (105 obs)
##   Primary splits:
##       description_length < 330.5    to the left,  improve=0.050482030, (0 missing)
##       campaign_duration  < 43.48    to the right, improve=0.044120260, (0 missing)
##       reward_length      < 6794     to the right, improve=0.014011370, (0 missing)
##       mo_launched        splits as  -R--RR--RRL-, improve=0.009274844, (0 missing)
##       category           splits as  ----L-R---L----, improve=0.007505946, (0 missing)
## 
## Node number 5996: 400 observations,    complexity param=0.0002390147
##   mean=0.555, MSE=0.246975 
##   left son=11992 (302 obs) right son=11993 (98 obs)
##   Primary splits:
##       mo_launched       splits as  RLRLRLLLLLLL, improve=0.029202120, (0 missing)
##       goal              < 6125     to the right, improve=0.011105810, (0 missing)
##       campaign_duration < 62.48    to the left,  improve=0.008374997, (0 missing)
##       category          splits as  ------R---L----, improve=0.007971829, (0 missing)
##       usa               < 0.5      to the left,  improve=0.006153147, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 90.5     to the left,  agree=0.762, adj=0.031, (0 split)
##       reward_length      < 4843     to the right, agree=0.762, adj=0.031, (0 split)
##       description_length < 1874     to the left,  agree=0.760, adj=0.020, (0 split)
## 
## Node number 5997: 211 observations,    complexity param=0.0002369654
##   mean=0.6682464, MSE=0.2216931 
##   left son=11994 (63 obs) right son=11995 (148 obs)
##   Primary splits:
##       campaign_duration  < 39       to the right, improve=0.049345490, (0 missing)
##       mo_launched        splits as  LLLLLRLRRLRL, improve=0.022875190, (0 missing)
##       reward_length      < 7530     to the right, improve=0.016786100, (0 missing)
##       description_length < 1592     to the right, improve=0.009353375, (0 missing)
##       goal               < 6728.5   to the left,  improve=0.008355554, (0 missing)
##   Surrogate splits:
##       reward_length      < 9323     to the right, agree=0.720, adj=0.063, (0 split)
##       mo_launched        splits as  RRRRRRRRRRRL, agree=0.711, adj=0.032, (0 split)
##       social_media_count splits as  RRRL,         agree=0.706, adj=0.016, (0 split)
## 
## Node number 6000: 18 observations
##   mean=0.1111111, MSE=0.09876543 
## 
## Node number 6001: 7 observations
##   mean=0.5714286, MSE=0.244898 
## 
## Node number 6004: 66 observations,    complexity param=0.000149019
##   mean=0.4848485, MSE=0.2497704 
##   left son=12008 (29 obs) right son=12009 (37 obs)
##   Primary splits:
##       campaign_duration  < 34.035   to the right, improve=0.06152349, (0 missing)
##       description_length < 503.5    to the right, improve=0.04226607, (0 missing)
##       reward_length      < 15073.5  to the left,  improve=0.03484619, (0 missing)
##       goal               < 6435.5   to the left,  improve=0.02442883, (0 missing)
##       social_media_count splits as  RRLR,         improve=0.01883635, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  --R--R--RRL-, agree=0.652, adj=0.207, (0 split)
##       reward_length      < 14332.5  to the left,  agree=0.621, adj=0.138, (0 split)
##       goal               < 6185.5   to the left,  agree=0.606, adj=0.103, (0 split)
##       description_length < 1090.5   to the right, agree=0.591, adj=0.069, (0 split)
##       social_media_count splits as  RRLR,         agree=0.576, adj=0.034, (0 split)
## 
## Node number 6005: 48 observations
##   mean=0.6666667, MSE=0.2222222 
## 
## Node number 6006: 21 observations
##   mean=0.5714286, MSE=0.244898 
## 
## Node number 6007: 35 observations
##   mean=0.8857143, MSE=0.1012245 
## 
## Node number 6010: 32 observations,    complexity param=0.0001866282
##   mean=0.46875, MSE=0.2490234 
##   left son=12020 (23 obs) right son=12021 (9 obs)
##   Primary splits:
##       mo_launched        splits as  RLLRRLLLRLLR, improve=0.27737050, (0 missing)
##       reward_length      < 13092    to the left,  improve=0.15560850, (0 missing)
##       description_length < 1564.5   to the left,  improve=0.13879280, (0 missing)
##       category           splits as  ------R---L----, improve=0.06155158, (0 missing)
##       goal               < 14675    to the left,  improve=0.03766947, (0 missing)
##   Surrogate splits:
##       description_length < 1191     to the right, agree=0.781, adj=0.222, (0 split)
##       reward_length      < 11523.5  to the right, agree=0.781, adj=0.222, (0 split)
## 
## Node number 6011: 16 observations
##   mean=0.9375, MSE=0.05859375 
## 
## Node number 6012: 114 observations,    complexity param=0.0001545966
##   mean=0.622807, MSE=0.2349184 
##   left son=12024 (18 obs) right son=12025 (96 obs)
##   Primary splits:
##       reward_length      < 11535    to the left,  improve=0.06688094, (0 missing)
##       description_length < 1837     to the right, improve=0.03164433, (0 missing)
##       social_media_count splits as  LRRL,         improve=0.02507188, (0 missing)
##       mo_launched        splits as  ---RR-LLR--R, improve=0.01436813, (0 missing)
##       campaign_duration  < 35.1     to the left,  improve=0.01248579, (0 missing)
##   Surrogate splits:
##       description_length < 1860     to the right, agree=0.851, adj=0.056, (0 split)
## 
## Node number 6013: 52 observations
##   mean=0.8076923, MSE=0.1553254 
## 
## Node number 6014: 23 observations,    complexity param=0.0001262203
##   mean=0.6521739, MSE=0.2268431 
##   left son=12028 (7 obs) right son=12029 (16 obs)
##   Primary splits:
##       reward_length      < 12520.5  to the right, improve=0.25900300, (0 missing)
##       campaign_duration  < 59.995   to the left,  improve=0.18062500, (0 missing)
##       mo_launched        splits as  RLL--R---RL-, improve=0.15782830, (0 missing)
##       goal               < 9500     to the right, improve=0.09642857, (0 missing)
##       description_length < 1576.5   to the left,  improve=0.07852564, (0 missing)
##   Surrogate splits:
##       campaign_duration < 63.08    to the right, agree=0.739, adj=0.143, (0 split)
##       goal              < 6750     to the right, agree=0.739, adj=0.143, (0 split)
## 
## Node number 6015: 139 observations,    complexity param=0.0001262203
##   mean=0.8561151, MSE=0.123182 
##   left son=12030 (74 obs) right son=12031 (65 obs)
##   Primary splits:
##       goal               < 6065.95  to the right, improve=0.04835305, (0 missing)
##       description_length < 1185.5   to the left,  improve=0.04127940, (0 missing)
##       category           splits as  --R-RRL---R----, improve=0.03524555, (0 missing)
##       campaign_duration  < 30.29    to the left,  improve=0.02407838, (0 missing)
##       reward_length      < 17008.5  to the left,  improve=0.01338858, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 32.7     to the right, agree=0.583, adj=0.108, (0 split)
##       mo_launched        splits as  RLL--R---LR-, agree=0.568, adj=0.077, (0 split)
##       category           splits as  --R-RRL---L----, agree=0.568, adj=0.077, (0 split)
##       description_length < 1774     to the left,  agree=0.568, adj=0.077, (0 split)
##       reward_length      < 11104.5  to the right, agree=0.554, adj=0.046, (0 split)
## 
## Node number 6016: 51 observations
##   mean=0.07843137, MSE=0.07227989 
## 
## Node number 6017: 11 observations
##   mean=0.4545455, MSE=0.2479339 
## 
## Node number 6018: 106 observations,    complexity param=0.0001436035
##   mean=0.245283, MSE=0.1851193 
##   left son=12036 (24 obs) right son=12037 (82 obs)
##   Primary splits:
##       goal               < 47000    to the right, improve=0.06554976, (0 missing)
##       mo_launched        splits as  LLLRRRRRLRLR, improve=0.05649110, (0 missing)
##       reward_length      < 5442     to the left,  improve=0.02653061, (0 missing)
##       description_length < 4612     to the right, improve=0.02484621, (0 missing)
##       campaign_duration  < 29.98    to the left,  improve=0.01680945, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 27.465   to the left,  agree=0.802, adj=0.125, (0 split)
##       social_media_count splits as  RRRL,         agree=0.792, adj=0.083, (0 split)
##       reward_length      < 8769.5   to the right, agree=0.792, adj=0.083, (0 split)
##       video_status       < 0.5      to the left,  agree=0.783, adj=0.042, (0 split)
## 
## Node number 6019: 123 observations,    complexity param=0.0001602301
##   mean=0.4634146, MSE=0.2486615 
##   left son=12038 (55 obs) right son=12039 (68 obs)
##   Primary splits:
##       mo_launched        splits as  LRLRRRLRLLRL, improve=0.04526009, (0 missing)
##       reward_length      < 9453.5   to the right, improve=0.04031841, (0 missing)
##       description_length < 2456.5   to the left,  improve=0.04010531, (0 missing)
##       campaign_duration  < 29.98    to the right, improve=0.03019636, (0 missing)
##       social_media_count splits as  LLRR,         improve=0.02490046, (0 missing)
##   Surrogate splits:
##       reward_length      < 13241    to the right, agree=0.626, adj=0.164, (0 split)
##       campaign_duration  < 30.02    to the right, agree=0.593, adj=0.091, (0 split)
##       description_length < 3207.5   to the left,  agree=0.593, adj=0.091, (0 split)
##       social_media_count splits as  RLRL,         agree=0.569, adj=0.036, (0 split)
##       goal               < 49000    to the right, agree=0.569, adj=0.036, (0 split)
## 
## Node number 6020: 203 observations,    complexity param=0.0002342799
##   mean=0.3448276, MSE=0.2259215 
##   left son=12040 (42 obs) right son=12041 (161 obs)
##   Primary splits:
##       reward_length      < 6826     to the left,  improve=0.04710223, (0 missing)
##       goal               < 17750    to the right, improve=0.04098584, (0 missing)
##       mo_launched        splits as  RRLLLLLRRRRR, improve=0.03593198, (0 missing)
##       social_media_count splits as  LR--,         improve=0.01666171, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.01597164, (0 missing)
##   Surrogate splits:
##       campaign_duration < 14.115   to the left,  agree=0.798, adj=0.024, (0 split)
## 
## Node number 6021: 52 observations,    complexity param=0.0001370999
##   mean=0.6153846, MSE=0.2366864 
##   left son=12042 (16 obs) right son=12043 (36 obs)
##   Primary splits:
##       description_length < 2672     to the left,  improve=0.10850690, (0 missing)
##       goal               < 17860    to the left,  improve=0.09000000, (0 missing)
##       mo_launched        splits as  LRRRLLRLRLRR, improve=0.05545315, (0 missing)
##       campaign_duration  < 31.365   to the right, improve=0.04575630, (0 missing)
##       reward_length      < 14138.5  to the left,  improve=0.02332041, (0 missing)
##   Surrogate splits:
##       mo_launched splits as  RLRRLLRRRRRR, agree=0.769, adj=0.250, (0 split)
##       goal        < 13000    to the left,  agree=0.712, adj=0.063, (0 split)
## 
## Node number 6022: 327 observations,    complexity param=0.0002264953
##   mean=0.5015291, MSE=0.2499977 
##   left son=12044 (233 obs) right son=12045 (94 obs)
##   Primary splits:
##       description_length < 4053     to the left,  improve=0.025672990, (0 missing)
##       campaign_duration  < 46.73    to the right, improve=0.023691970, (0 missing)
##       social_media_count splits as  RRLL,         improve=0.020895900, (0 missing)
##       goal               < 15150    to the right, improve=0.019502220, (0 missing)
##       reward_length      < 6102.5   to the left,  improve=0.008570281, (0 missing)
##   Surrogate splits:
##       social_media_count splits as  LLLR, agree=0.716, adj=0.011, (0 split)
## 
## Node number 6023: 193 observations,    complexity param=0.0001249407
##   mean=0.6476684, MSE=0.228194 
##   left son=12046 (43 obs) right son=12047 (150 obs)
##   Primary splits:
##       campaign_duration  < 45.025   to the right, improve=0.015979860, (0 missing)
##       mo_launched        splits as  -RL----L-L-R, improve=0.012676110, (0 missing)
##       goal               < 15750    to the right, improve=0.011247180, (0 missing)
##       description_length < 2956.5   to the left,  improve=0.009162987, (0 missing)
##       reward_length      < 5887     to the left,  improve=0.008208065, (0 missing)
##   Surrogate splits:
##       reward_length < 16141.5  to the right, agree=0.782, adj=0.023, (0 split)
## 
## Node number 6024: 12 observations
##   mean=0.1666667, MSE=0.1388889 
## 
## Node number 6025: 39 observations
##   mean=0.5384615, MSE=0.2485207 
## 
## Node number 6026: 22 observations,    complexity param=0.0001344362
##   mean=0.5, MSE=0.25 
##   left son=12052 (15 obs) right son=12053 (7 obs)
##   Primary splits:
##       description_length < 3161.5   to the right, improve=0.23809520, (0 missing)
##       campaign_duration  < 44.5     to the left,  improve=0.14285710, (0 missing)
##       goal               < 19500    to the left,  improve=0.03571429, (0 missing)
##       mo_launched        splits as  ----L-RL-L-R, improve=0.03333333, (0 missing)
##       reward_length      < 18545    to the left,  improve=0.00952381, (0 missing)
##   Surrogate splits:
##       social_media_count splits as  LLR-,         agree=0.773, adj=0.286, (0 split)
##       mo_launched        splits as  ----L-RL-L-R, agree=0.773, adj=0.286, (0 split)
## 
## Node number 6027: 35 observations
##   mean=0.8857143, MSE=0.1012245 
## 
## Node number 6030: 11 observations
##   mean=0.5454545, MSE=0.2479339 
## 
## Node number 6031: 95 observations
##   mean=0.8631579, MSE=0.1181163 
## 
## Node number 6032: 23 observations
##   mean=0.1304348, MSE=0.1134216 
## 
## Node number 6033: 13 observations
##   mean=0.6153846, MSE=0.2366864 
## 
## Node number 6034: 27 observations
##   mean=0.4074074, MSE=0.2414266 
## 
## Node number 6035: 25 observations
##   mean=0.72, MSE=0.2016 
## 
## Node number 6040: 9 observations
##   mean=0.1111111, MSE=0.09876543 
## 
## Node number 6041: 24 observations,    complexity param=0.0001211865
##   mean=0.4583333, MSE=0.2482639 
##   left son=12082 (17 obs) right son=12083 (7 obs)
##   Primary splits:
##       campaign_duration  < 30.825   to the left,  improve=0.26379500, (0 missing)
##       reward_length      < 6782.5   to the right, improve=0.16507020, (0 missing)
##       social_media_count splits as  RRL-,         improve=0.16507020, (0 missing)
##       mo_launched        splits as  --L-RLLRL-R-, improve=0.05774226, (0 missing)
##       goal               < 15500    to the left,  improve=0.04942117, (0 missing)
##   Surrogate splits:
##       description_length < 5394     to the right, agree=0.792, adj=0.286, (0 split)
##       social_media_count splits as  LRL-,         agree=0.750, adj=0.143, (0 split)
## 
## Node number 6044: 153 observations,    complexity param=0.0001828086
##   mean=0.6143791, MSE=0.2369174 
##   left son=12088 (96 obs) right son=12089 (57 obs)
##   Primary splits:
##       mo_launched        splits as  LRRLLRLLLLRR, improve=0.049125320, (0 missing)
##       description_length < 9380     to the left,  improve=0.034758780, (0 missing)
##       reward_length      < 14567.5  to the right, improve=0.030498170, (0 missing)
##       goal               < 28250    to the left,  improve=0.029172540, (0 missing)
##       campaign_duration  < 30.905   to the left,  improve=0.009835868, (0 missing)
##   Surrogate splits:
##       description_length < 5506     to the right, agree=0.654, adj=0.070, (0 split)
##       campaign_duration  < 26.76    to the right, agree=0.647, adj=0.053, (0 split)
##       social_media_count splits as  LLRL,         agree=0.641, adj=0.035, (0 split)
## 
## Node number 6045: 224 observations,    complexity param=0.0001901052
##   mean=0.7767857, MSE=0.1733897 
##   left son=12090 (109 obs) right son=12091 (115 obs)
##   Primary splits:
##       mo_launched        splits as  RLRRLLRLLRRR, improve=0.04302029, (0 missing)
##       reward_length      < 14803.5  to the right, improve=0.03604927, (0 missing)
##       campaign_duration  < 55.635   to the right, improve=0.03115225, (0 missing)
##       social_media_count splits as  RRL-,         improve=0.02018245, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.01636441, (0 missing)
##   Surrogate splits:
##       description_length < 7856     to the right, agree=0.571, adj=0.119, (0 split)
##       campaign_duration  < 30.02    to the left,  agree=0.562, adj=0.101, (0 split)
##       goal               < 15001.5  to the left,  agree=0.554, adj=0.083, (0 split)
##       reward_length      < 8670.5   to the left,  agree=0.554, adj=0.083, (0 split)
## 
## Node number 6046: 74 observations,    complexity param=0.000101825
##   mean=0.7297297, MSE=0.1972243 
##   left son=12092 (63 obs) right son=12093 (11 obs)
##   Primary splits:
##       goal               < 17000    to the right, improve=0.06466784, (0 missing)
##       social_media_count splits as  LRRL,         improve=0.05022321, (0 missing)
##       description_length < 15155    to the right, improve=0.04804549, (0 missing)
##       reward_length      < 19226    to the right, improve=0.04677690, (0 missing)
##       campaign_duration  < 39.97    to the left,  improve=0.02716392, (0 missing)
## 
## Node number 6047: 81 observations
##   mean=0.9259259, MSE=0.06858711 
## 
## Node number 6054: 688 observations,    complexity param=0.0001480169
##   mean=0.627907, MSE=0.2336398 
##   left son=12108 (286 obs) right son=12109 (402 obs)
##   Primary splits:
##       mo_launched        splits as  RRRRLRLRLLLR, improve=0.006866728, (0 missing)
##       reward_length      < 11637.5  to the left,  improve=0.006741021, (0 missing)
##       description_length < 3755.5   to the left,  improve=0.006696429, (0 missing)
##       campaign_duration  < 76.45    to the right, improve=0.005296424, (0 missing)
##       goal               < 4600     to the left,  improve=0.002480142, (0 missing)
##   Surrogate splits:
##       reward_length      < 24184    to the right, agree=0.594, adj=0.024, (0 split)
##       goal               < 4600     to the left,  agree=0.589, adj=0.010, (0 split)
##       social_media_count splits as  RLRR,         agree=0.587, adj=0.007, (0 split)
##       campaign_duration  < 40.94    to the left,  agree=0.586, adj=0.003, (0 split)
## 
## Node number 6055: 31 observations,    complexity param=0.0001325438
##   mean=0.8064516, MSE=0.1560874 
##   left son=12110 (7 obs) right son=12111 (24 obs)
##   Primary splits:
##       mo_launched       splits as  LLLRRRRLR-RR, improve=0.26682540, (0 missing)
##       category          splits as  ------R---L----, improve=0.20927540, (0 missing)
##       campaign_duration < 60.32    to the left,  improve=0.07000000, (0 missing)
##       reward_length     < 5042.5   to the left,  improve=0.06293447, (0 missing)
##       goal              < 5800     to the right, improve=0.03712121, (0 missing)
## 
## Node number 6060: 38 observations,    complexity param=0.0001495628
##   mean=0.5263158, MSE=0.2493075 
##   left son=12120 (14 obs) right son=12121 (24 obs)
##   Primary splits:
##       social_media_count splits as  RLRR,         improve=0.13544970, (0 missing)
##       campaign_duration  < 59.645   to the right, improve=0.09742351, (0 missing)
##       reward_length      < 8543.5   to the right, improve=0.07111111, (0 missing)
##       description_length < 8053.5   to the right, improve=0.05243216, (0 missing)
##       mo_launched        splits as  --R-R--L-L-R, improve=0.02225783, (0 missing)
##   Surrogate splits:
##       description_length < 6967     to the right, agree=0.711, adj=0.214, (0 split)
##       video_status       < 0.5      to the left,  agree=0.684, adj=0.143, (0 split)
##       mo_launched        splits as  --R-R--L-R-R, agree=0.684, adj=0.143, (0 split)
##       reward_length      < 11988    to the right, agree=0.684, adj=0.143, (0 split)
##       campaign_duration  < 55.2     to the right, agree=0.658, adj=0.071, (0 split)
## 
## Node number 6061: 50 observations
##   mean=0.82, MSE=0.1476 
## 
## Node number 6068: 20 observations
##   mean=0.3, MSE=0.21 
## 
## Node number 6069: 16 observations
##   mean=0.75, MSE=0.1875 
## 
## Node number 6072: 428 observations,    complexity param=0.0002684924
##   mean=0.661215, MSE=0.2240097 
##   left son=12144 (54 obs) right son=12145 (374 obs)
##   Primary splits:
##       mo_launched        splits as  RRRRRRLRRRRL, improve=0.03568277, (0 missing)
##       social_media_count splits as  RLRL,         improve=0.02359830, (0 missing)
##       goal               < 6506     to the right, improve=0.01709832, (0 missing)
##       description_length < 3010.5   to the left,  improve=0.01516321, (0 missing)
##       usa                < 0.5      to the left,  improve=0.01393440, (0 missing)
##   Surrogate splits:
##       description_length < 10418.5  to the right, agree=0.881, adj=0.056, (0 split)
## 
## Node number 6073: 1095 observations,    complexity param=0.0001577645
##   mean=0.7378995, MSE=0.1934038 
##   left son=12146 (584 obs) right son=12147 (511 obs)
##   Primary splits:
##       mo_launched       splits as  LRLRLRRRLLLR, improve=0.004398600, (0 missing)
##       reward_length     < 7420     to the right, improve=0.004267629, (0 missing)
##       usa               < 0.5      to the left,  improve=0.003919054, (0 missing)
##       campaign_duration < 22.715   to the left,  improve=0.003183046, (0 missing)
##       goal              < 9052     to the right, improve=0.003123941, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 27.25    to the right, agree=0.549, adj=0.033, (0 split)
##       social_media_count splits as  LLRL,         agree=0.546, adj=0.027, (0 split)
##       goal               < 11055.5  to the left,  agree=0.540, adj=0.014, (0 split)
##       description_length < 1899.5   to the right, agree=0.535, adj=0.004, (0 split)
##       reward_length      < 7598.5   to the right, agree=0.535, adj=0.004, (0 split)
## 
## Node number 6074: 7 observations
##   mean=0.2857143, MSE=0.2040816 
## 
## Node number 6075: 230 observations,    complexity param=0.0001472365
##   mean=0.8521739, MSE=0.1259735 
##   left son=12150 (85 obs) right son=12151 (145 obs)
##   Primary splits:
##       mo_launched       splits as  RRRLLRLRLRRR, improve=0.04582279, (0 missing)
##       category          splits as  ------R---L----, improve=0.02802417, (0 missing)
##       goal              < 8185     to the right, improve=0.02192069, (0 missing)
##       reward_length     < 6731     to the left,  improve=0.01558849, (0 missing)
##       campaign_duration < 16.595   to the right, improve=0.01034915, (0 missing)
##   Surrogate splits:
##       goal               < 10750    to the right, agree=0.657, adj=0.071, (0 split)
##       description_length < 10446.5  to the right, agree=0.657, adj=0.071, (0 split)
## 
## Node number 6076: 89 observations,    complexity param=0.0001377486
##   mean=0.6516854, MSE=0.2269915 
##   left son=12152 (29 obs) right son=12153 (60 obs)
##   Primary splits:
##       mo_launched        splits as  -LRR-RL-----, improve=0.06076228, (0 missing)
##       campaign_duration  < 34.995   to the right, improve=0.03848753, (0 missing)
##       description_length < 2634     to the left,  improve=0.03328325, (0 missing)
##       reward_length      < 6480.5   to the right, improve=0.02788592, (0 missing)
##       goal               < 10250    to the right, improve=0.01872096, (0 missing)
##   Surrogate splits:
##       description_length < 2024     to the left,  agree=0.719, adj=0.138, (0 split)
##       campaign_duration  < 30.485   to the left,  agree=0.697, adj=0.069, (0 split)
##       usa                < 0.5      to the left,  agree=0.685, adj=0.034, (0 split)
## 
## Node number 6077: 155 observations,    complexity param=0.0001219123
##   mean=0.8258065, MSE=0.1438502 
##   left son=12154 (36 obs) right son=12155 (119 obs)
##   Primary splits:
##       reward_length      < 6365     to the left,  improve=0.05326019, (0 missing)
##       campaign_duration  < 36.155   to the right, improve=0.03663750, (0 missing)
##       description_length < 1995.5   to the left,  improve=0.02127574, (0 missing)
##       mo_launched        splits as  -RLL-LR-----, improve=0.01479037, (0 missing)
##       goal               < 6550     to the left,  improve=0.01169542, (0 missing)
##   Surrogate splits:
##       description_length < 12881    to the right, agree=0.781, adj=0.056, (0 split)
## 
## Node number 6078: 22 observations,    complexity param=0.000138674
##   mean=0.6363636, MSE=0.231405 
##   left son=12156 (14 obs) right son=12157 (8 obs)
##   Primary splits:
##       campaign_duration  < 34.535   to the left,  improve=0.3265306, (0 missing)
##       mo_launched        splits as  R---R--RLLRL, improve=0.2747253, (0 missing)
##       description_length < 5272.5   to the left,  improve=0.2666667, (0 missing)
##       reward_length      < 12666    to the left,  improve=0.1907814, (0 missing)
##       social_media_count splits as  LRR-,         improve=0.1428571, (0 missing)
##   Surrogate splits:
##       mo_launched   splits as  R---R--LLLRL, agree=0.818, adj=0.50, (0 split)
##       category      splits as  ------L---R----, agree=0.727, adj=0.25, (0 split)
##       reward_length < 7478     to the right, agree=0.727, adj=0.25, (0 split)
## 
## Node number 6079: 310 observations
##   mean=0.8612903, MSE=0.1194693 
## 
## Node number 6186: 171 observations,    complexity param=0.000116584
##   mean=0.1754386, MSE=0.1446599 
##   left son=12372 (17 obs) right son=12373 (154 obs)
##   Primary splits:
##       campaign_duration  < 30.02    to the right, improve=0.02348715, (0 missing)
##       description_length < 861.5    to the left,  improve=0.01870703, (0 missing)
##       reward_length      < 2821     to the right, improve=0.01822126, (0 missing)
##       mo_launched        splits as  RR-RR-R--LRR, improve=0.01740154, (0 missing)
##       category           splits as  --------L---LR-, improve=0.01683269, (0 missing)
##   Surrogate splits:
##       mo_launched splits as  RR-RR-R--LRR, agree=0.924, adj=0.235, (0 split)
## 
## Node number 6187: 33 observations,    complexity param=0.000116584
##   mean=0.3333333, MSE=0.2222222 
##   left son=12374 (24 obs) right son=12375 (9 obs)
##   Primary splits:
##       campaign_duration < 26.805   to the right, improve=0.18750000, (0 missing)
##       reward_length     < 2429.5   to the left,  improve=0.12030080, (0 missing)
##       goal              < 1101     to the right, improve=0.07142857, (0 missing)
##       mo_launched       splits as  LR-LL-L--RLR, improve=0.07142857, (0 missing)
##       video_status      < 0.5      to the left,  improve=0.04807692, (0 missing)
##   Surrogate splits:
##       description_length < 716      to the left,  agree=0.788, adj=0.222, (0 split)
##       reward_length      < 3070     to the left,  agree=0.788, adj=0.222, (0 split)
##       mo_launched        splits as  LR-LL-L--LLL, agree=0.758, adj=0.111, (0 split)
##       goal               < 1062     to the right, agree=0.758, adj=0.111, (0 split)
## 
## Node number 6198: 89 observations,    complexity param=0.0001169741
##   mean=0.3146067, MSE=0.2156293 
##   left son=12396 (62 obs) right son=12397 (27 obs)
##   Primary splits:
##       description_length < 780.5    to the right, improve=0.03404598, (0 missing)
##       mo_launched        splits as  --R--L-RR---, improve=0.02379428, (0 missing)
##       goal               < 1550     to the left,  improve=0.02205174, (0 missing)
##       campaign_duration  < 29.985   to the right, improve=0.01535131, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.01090057, (0 missing)
##   Surrogate splits:
##       campaign_duration < 61.95    to the left,  agree=0.708, adj=0.037, (0 split)
## 
## Node number 6199: 16 observations
##   mean=0.75, MSE=0.1875 
## 
## Node number 6220: 15 observations
##   mean=0.1333333, MSE=0.1155556 
## 
## Node number 6221: 48 observations,    complexity param=0.0001283513
##   mean=0.4375, MSE=0.2460938 
##   left son=12442 (41 obs) right son=12443 (7 obs)
##   Primary splits:
##       category      splits as  --------R---LR-, improve=0.12217240, (0 missing)
##       goal          < 3550     to the left,  improve=0.07936508, (0 missing)
##       mo_launched   splits as  LLL-LRLL--RR, improve=0.03001200, (0 missing)
##       reward_length < 3551     to the left,  improve=0.02823726, (0 missing)
##       video_status  < 0.5      to the left,  improve=0.02645503, (0 missing)
## 
## Node number 6262: 12 observations
##   mean=0.4166667, MSE=0.2430556 
## 
## Node number 6263: 18 observations
##   mean=0.8888889, MSE=0.09876543 
## 
## Node number 6296: 58 observations,    complexity param=0.0001316969
##   mean=0.1896552, MSE=0.1536861 
##   left son=12592 (28 obs) right son=12593 (30 obs)
##   Primary splits:
##       campaign_duration  < 24.815   to the right, improve=0.14391640, (0 missing)
##       mo_launched        splits as  -LLL--RLRLLL, improve=0.10685440, (0 missing)
##       goal               < 3687.5   to the right, improve=0.04875887, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.03496184, (0 missing)
##       description_length < 1071     to the left,  improve=0.02273802, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  -LLR--RRRRRR, agree=0.741, adj=0.464, (0 split)
##       reward_length      < 3514.5   to the left,  agree=0.638, adj=0.250, (0 split)
##       goal               < 2550     to the left,  agree=0.621, adj=0.214, (0 split)
##       description_length < 757      to the right, agree=0.586, adj=0.143, (0 split)
##       video_status       < 0.5      to the left,  agree=0.569, adj=0.107, (0 split)
## 
## Node number 6297: 268 observations,    complexity param=0.0001352428
##   mean=0.3395522, MSE=0.2242565 
##   left son=12594 (142 obs) right son=12595 (126 obs)
##   Primary splits:
##       reward_length      < 3017.5   to the left,  improve=0.02601317, (0 missing)
##       campaign_duration  < 41.085   to the right, improve=0.01668296, (0 missing)
##       description_length < 1031     to the left,  improve=0.01402174, (0 missing)
##       social_media_count splits as  RRLR, improve=0.01122835, (0 missing)
##       category           splits as  R---R-----L----, improve=0.01044994, (0 missing)
##   Surrogate splits:
##       description_length < 1024.5   to the left,  agree=0.601, adj=0.151, (0 split)
##       mo_launched        splits as  -RLL--LRLLLR, agree=0.571, adj=0.087, (0 split)
##       video_status       < 0.5      to the left,  agree=0.560, adj=0.063, (0 split)
##       campaign_duration  < 66.855   to the left,  agree=0.545, adj=0.032, (0 split)
##       goal               < 4100     to the left,  agree=0.537, adj=0.016, (0 split)
## 
## Node number 6298: 28 observations
##   mean=0.3214286, MSE=0.2181122 
## 
## Node number 6299: 65 observations,    complexity param=0.0001027917
##   mean=0.5230769, MSE=0.2494675 
##   left son=12598 (17 obs) right son=12599 (48 obs)
##   Primary splits:
##       social_media_count splits as  RLLL,         improve=0.07442353, (0 missing)
##       campaign_duration  < 59.98    to the right, improve=0.03626876, (0 missing)
##       mo_launched        splits as  L---LR------, improve=0.02870019, (0 missing)
##       description_length < 480.5    to the left,  improve=0.02725718, (0 missing)
##       reward_length      < 3889.5   to the right, improve=0.02725718, (0 missing)
##   Surrogate splits:
##       campaign_duration < 60.59    to the right, agree=0.754, adj=0.059, (0 split)
##       reward_length     < 1943     to the left,  agree=0.754, adj=0.059, (0 split)
## 
## Node number 6314: 25 observations,    complexity param=0.0001099321
##   mean=0.28, MSE=0.2016 
##   left son=12628 (11 obs) right son=12629 (14 obs)
##   Primary splits:
##       description_length < 400      to the right, improve=0.30555560, (0 missing)
##       mo_launched        splits as  -LRR-L-R---L, improve=0.10714290, (0 missing)
##       campaign_duration  < 37.33    to the right, improve=0.07958554, (0 missing)
##       reward_length      < 3396.5   to the left,  improve=0.07545194, (0 missing)
##       social_media_count splits as  RLLL,         improve=0.03756957, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  -RRL-L-R---R, agree=0.72, adj=0.364, (0 split)
##       campaign_duration  < 37.33    to the right, agree=0.68, adj=0.273, (0 split)
##       social_media_count splits as  RLRL,         agree=0.64, adj=0.182, (0 split)
##       goal               < 1600     to the right, agree=0.64, adj=0.182, (0 split)
##       reward_length      < 2139     to the right, agree=0.64, adj=0.182, (0 split)
## 
## Node number 6315: 15 observations
##   mean=0.5333333, MSE=0.2488889 
## 
## Node number 6316: 34 observations,    complexity param=0.0001126356
##   mean=0.3529412, MSE=0.2283737 
##   left son=12632 (23 obs) right son=12633 (11 obs)
##   Primary splits:
##       reward_length      < 3178.5   to the left,  improve=0.16822370, (0 missing)
##       campaign_duration  < 19.175   to the right, improve=0.05419272, (0 missing)
##       description_length < 423.5    to the left,  improve=0.04267677, (0 missing)
##       goal               < 1450     to the right, improve=0.04045954, (0 missing)
##       mo_launched        splits as  R---R-L-LLL-, improve=0.02913753, (0 missing)
##   Surrogate splits:
##       campaign_duration < 21.29    to the right, agree=0.794, adj=0.364, (0 split)
## 
## Node number 6317: 8 observations
##   mean=0.75, MSE=0.1875 
## 
## Node number 6324: 80 observations,    complexity param=0.0001192192
##   mean=0.3375, MSE=0.2235937 
##   left son=12648 (28 obs) right son=12649 (52 obs)
##   Primary splits:
##       description_length < 963.5    to the right, improve=0.060827360, (0 missing)
##       goal               < 1150     to the right, improve=0.040998720, (0 missing)
##       reward_length      < 2919     to the left,  improve=0.029524810, (0 missing)
##       campaign_duration  < 59.98    to the left,  improve=0.014850380, (0 missing)
##       video_status       < 0.5      to the right, improve=0.006650331, (0 missing)
##   Surrogate splits:
##       usa < 0.5      to the left,  agree=0.675, adj=0.071, (0 split)
## 
## Node number 6325: 118 observations,    complexity param=0.0001472286
##   mean=0.5084746, MSE=0.2499282 
##   left son=12650 (7 obs) right son=12651 (111 obs)
##   Primary splits:
##       reward_length      < 3337.5   to the right, improve=0.03372979, (0 missing)
##       campaign_duration  < 50.295   to the right, improve=0.02500013, (0 missing)
##       category           splits as  R---R-----L----, improve=0.02021518, (0 missing)
##       goal               < 1545     to the left,  improve=0.01697492, (0 missing)
##       social_media_count splits as  RLLR, improve=0.01555776, (0 missing)
## 
## Node number 6326: 11 observations
##   mean=0.3636364, MSE=0.231405 
## 
## Node number 6327: 44 observations
##   mean=0.7954545, MSE=0.1627066 
## 
## Node number 6328: 7 observations
##   mean=0.1428571, MSE=0.122449 
## 
## Node number 6329: 19 observations
##   mean=0.6315789, MSE=0.232687 
## 
## Node number 6346: 23 observations,    complexity param=0.0001217317
##   mean=0.2173913, MSE=0.1701323 
##   left son=12692 (12 obs) right son=12693 (11 obs)
##   Primary splits:
##       mo_launched        splits as  -R-----L-RLR, improve=0.30303030, (0 missing)
##       campaign_duration  < 30.02    to the left,  improve=0.15076920, (0 missing)
##       goal               < 2250     to the right, improve=0.14814810, (0 missing)
##       description_length < 1623     to the right, improve=0.05079365, (0 missing)
##       reward_length      < 2417.5   to the left,  improve=0.05079365, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 30.02    to the left,  agree=0.696, adj=0.364, (0 split)
##       goal               < 1600     to the right, agree=0.696, adj=0.364, (0 split)
##       reward_length      < 2331     to the right, agree=0.696, adj=0.364, (0 split)
##       social_media_count splits as  LLRR,         agree=0.609, adj=0.182, (0 split)
##       video_status       < 0.5      to the left,  agree=0.609, adj=0.182, (0 split)
## 
## Node number 6347: 53 observations,    complexity param=0.0001315161
##   mean=0.4716981, MSE=0.249199 
##   left son=12694 (40 obs) right son=12695 (13 obs)
##   Primary splits:
##       reward_length      < 1924     to the left,  improve=0.11545330, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.08616149, (0 missing)
##       description_length < 1693.5   to the left,  improve=0.05041667, (0 missing)
##       goal               < 1050     to the right, improve=0.04864120, (0 missing)
##       mo_launched        splits as  -R-----L-RRR, improve=0.01622587, (0 missing)
##   Surrogate splits:
##       social_media_count splits as  LLR-, agree=0.792, adj=0.154, (0 split)
## 
## Node number 6348: 111 observations,    complexity param=0.0001765153
##   mean=0.4144144, MSE=0.2426751 
##   left son=12696 (56 obs) right son=12697 (55 obs)
##   Primary splits:
##       mo_launched        splits as  L-LRRRL-L---, improve=0.05154856, (0 missing)
##       goal               < 2775     to the left,  improve=0.04013454, (0 missing)
##       description_length < 1314.5   to the right, improve=0.03604410, (0 missing)
##       usa                < 0.5      to the left,  improve=0.02045325, (0 missing)
##       reward_length      < 1805.5   to the right, improve=0.01850584, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 46.305   to the left,  agree=0.613, adj=0.218, (0 split)
##       description_length < 1605     to the left,  agree=0.613, adj=0.218, (0 split)
##       reward_length      < 2123.5   to the left,  agree=0.595, adj=0.182, (0 split)
##       goal               < 1550     to the left,  agree=0.577, adj=0.145, (0 split)
##       category           splits as  R---L-----L----, agree=0.541, adj=0.073, (0 split)
## 
## Node number 6349: 25 observations,    complexity param=0.0001460177
##   mean=0.64, MSE=0.2304 
##   left son=12698 (14 obs) right son=12699 (11 obs)
##   Primary splits:
##       description_length < 1673.5   to the left,  improve=0.24693360, (0 missing)
##       mo_launched        splits as  R-RRLLL-L---, improve=0.15123460, (0 missing)
##       reward_length      < 1898     to the left,  improve=0.11728900, (0 missing)
##       campaign_duration  < 44.7     to the right, improve=0.07545194, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.04003268, (0 missing)
##   Surrogate splits:
##       mo_launched       splits as  R-RLLLL-L---, agree=0.68, adj=0.273, (0 split)
##       goal              < 1375     to the left,  agree=0.68, adj=0.273, (0 split)
##       reward_length     < 1717     to the right, agree=0.64, adj=0.182, (0 split)
##       campaign_duration < 31.13    to the right, agree=0.60, adj=0.091, (0 split)
## 
## Node number 6350: 11 observations
##   mean=0.3636364, MSE=0.231405 
## 
## Node number 6351: 32 observations,    complexity param=0.0001069379
##   mean=0.8125, MSE=0.1523438 
##   left son=12702 (8 obs) right son=12703 (24 obs)
##   Primary splits:
##       reward_length      < 1567     to the left,  improve=0.21367520, (0 missing)
##       description_length < 1658.5   to the left,  improve=0.10256410, (0 missing)
##       mo_launched        splits as  R-RRLLL-R---, improve=0.08456511, (0 missing)
##       goal               < 1150     to the right, improve=0.07692308, (0 missing)
##       campaign_duration  < 18.935   to the left,  improve=0.04924705, (0 missing)
## 
## Node number 6384: 42 observations
##   mean=0.2619048, MSE=0.1933107 
## 
## Node number 6385: 29 observations
##   mean=0.5172414, MSE=0.2497027 
## 
## Node number 6386: 74 observations,    complexity param=0.0001282645
##   mean=0.5135135, MSE=0.2498174 
##   left son=12772 (20 obs) right son=12773 (54 obs)
##   Primary splits:
##       video_status       < 0.5      to the left,  improve=0.06758718, (0 missing)
##       reward_length      < 2786.5   to the right, improve=0.04029212, (0 missing)
##       social_media_count splits as  RLRL,         improve=0.02283835, (0 missing)
##       campaign_duration  < 14.5     to the left,  improve=0.02170227, (0 missing)
##       mo_launched        splits as  -R--LL-L--L-, improve=0.01817267, (0 missing)
##   Surrogate splits:
##       description_length < 5656     to the right, agree=0.743, adj=0.05, (0 split)
## 
## Node number 6387: 32 observations
##   mean=0.75, MSE=0.1875 
## 
## Node number 6388: 68 observations,    complexity param=0.0001425272
##   mean=0.5441176, MSE=0.2480536 
##   left son=12776 (10 obs) right son=12777 (58 obs)
##   Primary splits:
##       social_media_count splits as  RLRL,         improve=0.08230767, (0 missing)
##       description_length < 1721.5   to the left,  improve=0.08149499, (0 missing)
##       campaign_duration  < 45.065   to the left,  improve=0.05884917, (0 missing)
##       mo_launched        splits as  -R--RL-R--L-, improve=0.03656297, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.03653884, (0 missing)
## 
## Node number 6389: 8 observations
##   mean=1, MSE=0 
## 
## Node number 6390: 7 observations
##   mean=0.4285714, MSE=0.244898 
## 
## Node number 6391: 21 observations
##   mean=1, MSE=0 
## 
## Node number 6394: 220 observations,    complexity param=0.0001336597
##   mean=0.6636364, MSE=0.2232231 
##   left son=12788 (13 obs) right son=12789 (207 obs)
##   Primary splits:
##       reward_length      < 2762     to the left,  improve=0.03564489, (0 missing)
##       description_length < 1464     to the left,  improve=0.02842452, (0 missing)
##       mo_launched        splits as  R-RR--L-RR-R, improve=0.01422773, (0 missing)
##       campaign_duration  < 30.015   to the left,  improve=0.01059301, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.01042620, (0 missing)
## 
## Node number 6395: 83 observations,    complexity param=0.0001336597
##   mean=0.7951807, MSE=0.1628683 
##   left son=12790 (55 obs) right son=12791 (28 obs)
##   Primary splits:
##       description_length < 1657     to the right, improve=0.05561729, (0 missing)
##       reward_length      < 3339     to the left,  improve=0.02929770, (0 missing)
##       campaign_duration  < 25.02    to the left,  improve=0.02873302, (0 missing)
##       video_status       < 0.5      to the right, improve=0.02497255, (0 missing)
##       mo_launched        splits as  L-RR--R-LR-L, improve=0.02477211, (0 missing)
##   Surrogate splits:
##       social_media_count splits as  LLR-,         agree=0.675, adj=0.036, (0 split)
##       mo_launched        splits as  L-LL--L-LR-L, agree=0.675, adj=0.036, (0 split)
## 
## Node number 6424: 65 observations,    complexity param=0.0001040375
##   mean=0.3538462, MSE=0.2286391 
##   left son=12848 (10 obs) right son=12849 (55 obs)
##   Primary splits:
##       description_length < 893      to the right, improve=0.05124224, (0 missing)
##       campaign_duration  < 58.07    to the right, improve=0.04141608, (0 missing)
##       category           splits as  L---R---L-L-RR-, improve=0.03578036, (0 missing)
##       reward_length      < 1599.5   to the right, improve=0.02368629, (0 missing)
##       goal               < 475      to the left,  improve=0.02235182, (0 missing)
##   Surrogate splits:
##       campaign_duration < 26.4     to the left,  agree=0.877, adj=0.2, (0 split)
##       reward_length     < 2209.5   to the right, agree=0.862, adj=0.1, (0 split)
## 
## Node number 6425: 90 observations
##   mean=0.5444444, MSE=0.2480247 
## 
## Node number 6456: 139 observations,    complexity param=0.0001369433
##   mean=0.4748201, MSE=0.249366 
##   left son=12912 (9 obs) right son=12913 (130 obs)
##   Primary splits:
##       campaign_duration  < 59.98    to the right, improve=0.03672570, (0 missing)
##       description_length < 882      to the left,  improve=0.03008267, (0 missing)
##       mo_launched        splits as  LLRRLLLRLLLL, improve=0.02603528, (0 missing)
##       social_media_count splits as  LRR-,         improve=0.02086857, (0 missing)
##       usa                < 0.5      to the left,  improve=0.01407497, (0 missing)
## 
## Node number 6457: 8 observations
##   mean=0.875, MSE=0.109375 
## 
## Node number 6460: 32 observations
##   mean=0.40625, MSE=0.2412109 
## 
## Node number 6461: 7 observations
##   mean=0.8571429, MSE=0.122449 
## 
## Node number 6482: 48 observations
##   mean=0.3958333, MSE=0.2391493 
## 
## Node number 6483: 11 observations
##   mean=0.8181818, MSE=0.1487603 
## 
## Node number 6504: 21 observations,    complexity param=0.000114352
##   mean=0.3333333, MSE=0.2222222 
##   left son=13008 (7 obs) right son=13009 (14 obs)
##   Primary splits:
##       goal               < 625      to the right, improve=0.25000000, (0 missing)
##       mo_launched        splits as  LRR-LL----R-, improve=0.23557690, (0 missing)
##       description_length < 2281.5   to the left,  improve=0.16666670, (0 missing)
##       campaign_duration  < 33.08    to the right, improve=0.08163265, (0 missing)
##       reward_length      < 3419     to the left,  improve=0.08163265, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  LRR-RL----R-, agree=0.810, adj=0.429, (0 split)
##       description_length < 1425.5   to the left,  agree=0.762, adj=0.286, (0 split)
##       reward_length      < 3369.5   to the left,  agree=0.762, adj=0.286, (0 split)
##       campaign_duration  < 33.08    to the right, agree=0.714, adj=0.143, (0 split)
##       social_media_count splits as  RRL-,         agree=0.714, adj=0.143, (0 split)
## 
## Node number 6505: 41 observations,    complexity param=0.0001127505
##   mean=0.6097561, MSE=0.2379536 
##   left son=13010 (20 obs) right son=13011 (21 obs)
##   Primary splits:
##       description_length < 1777     to the right, improve=0.10214880, (0 missing)
##       mo_launched        splits as  RRL-LL----R-, improve=0.06720096, (0 missing)
##       goal               < 775      to the right, improve=0.05964516, (0 missing)
##       social_media_count splits as  RLL-,         improve=0.05964516, (0 missing)
##       reward_length      < 3888.5   to the right, improve=0.05614583, (0 missing)
##   Surrogate splits:
##       campaign_duration < 33.33    to the left,  agree=0.707, adj=0.40, (0 split)
##       goal              < 550      to the left,  agree=0.683, adj=0.35, (0 split)
##       category          splits as  ----L---L-R----, agree=0.659, adj=0.30, (0 split)
##       mo_launched       splits as  RLL-RR----L-, agree=0.610, adj=0.20, (0 split)
##       video_status      < 0.5      to the left,  agree=0.585, adj=0.15, (0 split)
## 
## Node number 6508: 63 observations,    complexity param=0.0001179065
##   mean=0.6984127, MSE=0.2106324 
##   left son=13016 (22 obs) right son=13017 (41 obs)
##   Primary splits:
##       goal               < 675      to the right, improve=0.05960174, (0 missing)
##       description_length < 2777     to the right, improve=0.03158079, (0 missing)
##       category           splits as  R---L---R-L----, improve=0.02894737, (0 missing)
##       reward_length      < 3502.5   to the left,  improve=0.02746607, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.02197316, (0 missing)
##   Surrogate splits:
##       reward_length      < 2556.5   to the left,  agree=0.698, adj=0.136, (0 split)
##       description_length < 3340     to the right, agree=0.683, adj=0.091, (0 split)
##       mo_launched        splits as  ---R--LRRR-R, agree=0.667, adj=0.045, (0 split)
## 
## Node number 6509: 10 observations
##   mean=1, MSE=0 
## 
## Node number 6536: 10 observations
##   mean=0.1, MSE=0.09 
## 
## Node number 6537: 12 observations
##   mean=0.5833333, MSE=0.2430556 
## 
## Node number 6538: 25 observations
##   mean=0.48, MSE=0.2496 
## 
## Node number 6539: 48 observations
##   mean=0.7291667, MSE=0.1974826 
## 
## Node number 6540: 15 observations
##   mean=0.2666667, MSE=0.1955556 
## 
## Node number 6541: 10 observations
##   mean=0.9, MSE=0.09 
## 
## Node number 7180: 12 observations
##   mean=0.08333333, MSE=0.07638889 
## 
## Node number 7181: 16 observations
##   mean=0.5, MSE=0.25 
## 
## Node number 7182: 9 observations
##   mean=0.3333333, MSE=0.2222222 
## 
## Node number 7183: 11 observations
##   mean=0.9090909, MSE=0.08264463 
## 
## Node number 7226: 21 observations
##   mean=0.5238095, MSE=0.2494331 
## 
## Node number 7227: 7 observations
##   mean=1, MSE=0 
## 
## Node number 7268: 36 observations,    complexity param=0.0001224797
##   mean=0.1944444, MSE=0.1566358 
##   left son=14536 (22 obs) right son=14537 (14 obs)
##   Primary splits:
##       mo_launched        splits as  -LRLLLRLRLLL, improve=0.22269850, (0 missing)
##       description_length < 1837.5   to the left,  improve=0.13050070, (0 missing)
##       goal               < 3400     to the right, improve=0.06896552, (0 missing)
##       social_media_count splits as  RL--,         improve=0.06896552, (0 missing)
##       campaign_duration  < 30.345   to the left,  improve=0.04105090, (0 missing)
##   Surrogate splits:
##       description_length < 1917.5   to the left,  agree=0.694, adj=0.214, (0 split)
##       campaign_duration  < 18       to the right, agree=0.667, adj=0.143, (0 split)
##       reward_length      < 7865     to the left,  agree=0.639, adj=0.071, (0 split)
## 
## Node number 7269: 13 observations
##   mean=0.5384615, MSE=0.2485207 
## 
## Node number 7270: 181 observations,    complexity param=0.0001220582
##   mean=0.441989, MSE=0.2466347 
##   left son=14540 (168 obs) right son=14541 (13 obs)
##   Primary splits:
##       campaign_duration  < 45.02    to the left,  improve=0.01965923, (0 missing)
##       reward_length      < 4364     to the left,  improve=0.01520794, (0 missing)
##       description_length < 2013.5   to the right, improve=0.01024669, (0 missing)
##       goal               < 2550     to the right, improve=0.00809742, (0 missing)
##       usa                < 0.5      to the left,  improve=0.00691102, (0 missing)
## 
## Node number 7271: 97 observations,    complexity param=0.000137372
##   mean=0.6082474, MSE=0.2382825 
##   left son=14542 (89 obs) right son=14543 (8 obs)
##   Primary splits:
##       reward_length      < 7028     to the left,  improve=0.057893730, (0 missing)
##       description_length < 1335.5   to the left,  improve=0.044572150, (0 missing)
##       campaign_duration  < 30.02    to the left,  improve=0.023070110, (0 missing)
##       goal               < 1675     to the right, improve=0.012421410, (0 missing)
##       mo_launched        splits as  LL-R---L--L-, improve=0.008501141, (0 missing)
##   Surrogate splits:
##       description_length < 2012.5   to the left,  agree=0.928, adj=0.125, (0 split)
## 
## Node number 7286: 84 observations,    complexity param=0.0001008593
##   mean=0.5833333, MSE=0.2430556 
##   left son=14572 (8 obs) right son=14573 (76 obs)
##   Primary splits:
##       goal               < 1900     to the left,  improve=0.04812030, (0 missing)
##       reward_length      < 7513.5   to the left,  improve=0.03571429, (0 missing)
##       campaign_duration  < 39.69    to the right, improve=0.01970845, (0 missing)
##       description_length < 955      to the right, improve=0.01866667, (0 missing)
##       mo_launched        splits as  L------L--LR, improve=0.01284469, (0 missing)
##   Surrogate splits:
##       campaign_duration < 45.845   to the right, agree=0.929, adj=0.25, (0 split)
## 
## Node number 7287: 7 observations
##   mean=1, MSE=0 
## 
## Node number 7290: 68 observations,    complexity param=0.0001348783
##   mean=0.5441176, MSE=0.2480536 
##   left son=14580 (59 obs) right son=14581 (9 obs)
##   Primary splits:
##       description_length < 745.5    to the right, improve=0.07309825, (0 missing)
##       reward_length      < 5134.5   to the right, improve=0.05730086, (0 missing)
##       campaign_duration  < 24.585   to the right, improve=0.02179599, (0 missing)
##       mo_launched        splits as  -LRLRLR-LR--, improve=0.02179599, (0 missing)
##       goal               < 2050     to the right, improve=0.01909176, (0 missing)
##   Surrogate splits:
##       social_media_count splits as  LLLR, agree=0.882, adj=0.111, (0 split)
## 
## Node number 7291: 136 observations,    complexity param=0.0001221524
##   mean=0.7058824, MSE=0.2076125 
##   left son=14582 (32 obs) right son=14583 (104 obs)
##   Primary splits:
##       goal               < 3100     to the right, improve=0.03046875, (0 missing)
##       campaign_duration  < 22.5     to the right, improve=0.02508961, (0 missing)
##       description_length < 1406     to the left,  improve=0.01918721, (0 missing)
##       reward_length      < 10415    to the right, improve=0.01528302, (0 missing)
##       mo_launched        splits as  -RLLRLL-LL--, improve=0.01449275, (0 missing)
##   Surrogate splits:
##       reward_length < 5584.5   to the left,  agree=0.787, adj=0.094, (0 split)
## 
## Node number 7308: 70 observations,    complexity param=0.0001293859
##   mean=0.4428571, MSE=0.2467347 
##   left son=14616 (50 obs) right son=14617 (20 obs)
##   Primary splits:
##       goal               < 525      to the right, improve=0.06956162, (0 missing)
##       reward_length      < 5139.5   to the left,  improve=0.05971878, (0 missing)
##       category           splits as  R-------L---R--, improve=0.04157862, (0 missing)
##       description_length < 1379     to the right, improve=0.03317710, (0 missing)
##       campaign_duration  < 59.98    to the left,  improve=0.02995295, (0 missing)
##   Surrogate splits:
##       usa < 0.5      to the right, agree=0.729, adj=0.05, (0 split)
## 
## Node number 7309: 20 observations
##   mean=0.75, MSE=0.1875 
## 
## Node number 7332: 12 observations
##   mean=0.25, MSE=0.1875 
## 
## Node number 7333: 11 observations
##   mean=0.7272727, MSE=0.1983471 
## 
## Node number 7436: 11 observations
##   mean=0.09090909, MSE=0.08264463 
## 
## Node number 7437: 53 observations,    complexity param=0.0001004038
##   mean=0.4150943, MSE=0.242791 
##   left son=14874 (34 obs) right son=14875 (19 obs)
##   Primary splits:
##       goal               < 2375     to the right, improve=0.06179467, (0 missing)
##       description_length < 2452     to the right, improve=0.05610554, (0 missing)
##       reward_length      < 4154.5   to the right, improve=0.03226214, (0 missing)
##       mo_launched        splits as  -R---RLR--R-, improve=0.02186401, (0 missing)
##       social_media_count splits as  RLR-,         improve=0.01995764, (0 missing)
## 
## Node number 7438: 12 observations
##   mean=0.25, MSE=0.1875 
## 
## Node number 7439: 64 observations,    complexity param=0.0001184171
##   mean=0.59375, MSE=0.2412109 
##   left son=14878 (51 obs) right son=14879 (13 obs)
##   Primary splits:
##       social_media_count splits as  LRRL,         improve=0.06732372, (0 missing)
##       reward_length      < 4219.5   to the right, improve=0.06612686, (0 missing)
##       goal               < 1550     to the right, improve=0.03265857, (0 missing)
##       description_length < 2804.5   to the left,  improve=0.02346437, (0 missing)
##       mo_launched        splits as  R-RLL---LL-L, improve=0.02297469, (0 missing)
##   Surrogate splits:
##       description_length < 4953.5   to the left,  agree=0.812, adj=0.077, (0 split)
## 
## Node number 7446: 89 observations,    complexity param=0.0001178388
##   mean=0.4606742, MSE=0.2484535 
##   left son=14892 (28 obs) right son=14893 (61 obs)
##   Primary splits:
##       mo_launched        splits as  -L--R-L-R--R, improve=0.03582168, (0 missing)
##       description_length < 2979.5   to the right, improve=0.03272315, (0 missing)
##       reward_length      < 6110     to the left,  improve=0.02209923, (0 missing)
##       campaign_duration  < 32.855   to the right, improve=0.01287847, (0 missing)
##       goal               < 3125     to the right, improve=0.01056295, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 29.965   to the left,  agree=0.697, adj=0.036, (0 split)
##       description_length < 2381.5   to the left,  agree=0.697, adj=0.036, (0 split)
## 
## Node number 7447: 30 observations
##   mean=0.6666667, MSE=0.2222222 
## 
## Node number 7450: 19 observations
##   mean=0.3684211, MSE=0.232687 
## 
## Node number 7451: 9 observations
##   mean=0.8888889, MSE=0.09876543 
## 
## Node number 7452: 22 observations,    complexity param=0.0001214925
##   mean=0.3181818, MSE=0.2169421 
##   left son=14904 (14 obs) right son=14905 (8 obs)
##   Primary splits:
##       mo_launched        splits as  R-LL-R-L-RL-, improve=0.24795920, (0 missing)
##       description_length < 6265     to the right, improve=0.09829932, (0 missing)
##       reward_length      < 5468     to the left,  improve=0.08707483, (0 missing)
##       campaign_duration  < 32.07    to the right, improve=0.08571429, (0 missing)
##       goal               < 2750     to the left,  improve=0.05087505, (0 missing)
##   Surrogate splits:
##       goal              < 3250     to the left,  agree=0.727, adj=0.250, (0 split)
##       reward_length     < 5532     to the left,  agree=0.727, adj=0.250, (0 split)
##       campaign_duration < 30.02    to the left,  agree=0.682, adj=0.125, (0 split)
## 
## Node number 7453: 17 observations
##   mean=0.8235294, MSE=0.1453287 
## 
## Node number 7454: 26 observations
##   mean=0.5, MSE=0.25 
## 
## Node number 7455: 82 observations
##   mean=0.8658537, MSE=0.1161511 
## 
## Node number 7556: 402 observations,    complexity param=0.0001737559
##   mean=0.5572139, MSE=0.2467266 
##   left son=15112 (7 obs) right son=15113 (395 obs)
##   Primary splits:
##       campaign_duration  < 24.745   to the left,  improve=0.012332010, (0 missing)
##       mo_launched        splits as  RRRRLRLRLRRL, improve=0.011578050, (0 missing)
##       reward_length      < 9739.5   to the right, improve=0.009826471, (0 missing)
##       description_length < 2755     to the right, improve=0.008395936, (0 missing)
##       category           splits as  R-------R---L--, improve=0.007917812, (0 missing)
## 
## Node number 7557: 18 observations
##   mean=0.8888889, MSE=0.09876543 
## 
## Node number 7564: 44 observations,    complexity param=0.0001607786
##   mean=0.5227273, MSE=0.2494835 
##   left son=15128 (9 obs) right son=15129 (35 obs)
##   Primary splits:
##       reward_length      < 12410.5  to the right, improve=0.174629500, (0 missing)
##       mo_launched        splits as  -R-LR--L--RL, improve=0.050310560, (0 missing)
##       goal               < 2650     to the left,  improve=0.033816430, (0 missing)
##       description_length < 5138     to the right, improve=0.014431100, (0 missing)
##       campaign_duration  < 29.98    to the right, improve=0.007039337, (0 missing)
##   Surrogate splits:
##       usa < 0.5      to the left,  agree=0.864, adj=0.333, (0 split)
## 
## Node number 7565: 37 observations
##   mean=0.7837838, MSE=0.1694668 
## 
## Node number 7566: 53 observations,    complexity param=0.0001607786
##   mean=0.6792453, MSE=0.2178711 
##   left son=15132 (13 obs) right son=15133 (40 obs)
##   Primary splits:
##       reward_length      < 9040.5   to the right, improve=0.20593260, (0 missing)
##       campaign_duration  < 40.69    to the right, improve=0.05175942, (0 missing)
##       mo_launched        splits as  L-L--LR-LL--, improve=0.03126816, (0 missing)
##       goal               < 3790     to the left,  improve=0.03126816, (0 missing)
##       description_length < 6099.5   to the left,  improve=0.03126816, (0 missing)
## 
## Node number 7567: 46 observations
##   mean=0.9130435, MSE=0.07939509 
## 
## Node number 7596: 190 observations,    complexity param=0.0001648558
##   mean=0.6631579, MSE=0.2233795 
##   left son=15192 (169 obs) right son=15193 (21 obs)
##   Primary splits:
##       description_length < 2238.5   to the right, improve=0.04653236, (0 missing)
##       reward_length      < 6757     to the right, improve=0.03545714, (0 missing)
##       mo_launched        splits as  -RLLRLLRLR--, improve=0.01986125, (0 missing)
##       goal               < 1225     to the right, improve=0.01833669, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.01367187, (0 missing)
## 
## Node number 7597: 55 observations
##   mean=0.8545455, MSE=0.1242975 
## 
## Node number 7598: 107 observations,    complexity param=0.0001352994
##   mean=0.7383178, MSE=0.1932046 
##   left son=15196 (37 obs) right son=15197 (70 obs)
##   Primary splits:
##       mo_launched        splits as  -RRLLRRRLR--, improve=0.07976429, (0 missing)
##       description_length < 2182     to the left,  improve=0.05520908, (0 missing)
##       reward_length      < 7336.5   to the left,  improve=0.05109398, (0 missing)
##       campaign_duration  < 29.98    to the right, improve=0.03960405, (0 missing)
##       goal               < 1943     to the left,  improve=0.01198458, (0 missing)
## 
## Node number 7599: 129 observations,    complexity param=0.0001006552
##   mean=0.8682171, MSE=0.1144162 
##   left son=15198 (22 obs) right son=15199 (107 obs)
##   Primary splits:
##       campaign_duration  < 20.025   to the left,  improve=0.062436410, (0 missing)
##       mo_launched        splits as  -LRRRRRLLR--, improve=0.038296570, (0 missing)
##       description_length < 4224     to the left,  improve=0.022362100, (0 missing)
##       reward_length      < 8051     to the right, improve=0.014833000, (0 missing)
##       social_media_count splits as  RLRR,         improve=0.004116969, (0 missing)
## 
## Node number 7708: 17 observations
##   mean=0.3529412, MSE=0.2283737 
## 
## Node number 7709: 23 observations
##   mean=0.7391304, MSE=0.1928166 
## 
## Node number 7728: 21 observations
##   mean=0.2380952, MSE=0.1814059 
## 
## Node number 7729: 8 observations
##   mean=0.75, MSE=0.1875 
## 
## Node number 7730: 21 observations,    complexity param=0.0001194504
##   mean=0.3809524, MSE=0.2358277 
##   left son=15460 (10 obs) right son=15461 (11 obs)
##   Primary splits:
##       description_length < 732      to the right, improve=0.30428320, (0 missing)
##       campaign_duration  < 33.02    to the right, improve=0.12019230, (0 missing)
##       goal               < 725      to the right, improve=0.09695513, (0 missing)
##       mo_launched        splits as  ---LRLL-RR-L, improve=0.09695513, (0 missing)
##       reward_length      < 5729     to the left,  improve=0.03698225, (0 missing)
##   Surrogate splits:
##       campaign_duration < 30.02    to the right, agree=0.714, adj=0.4, (0 split)
##       goal              < 1375     to the right, agree=0.714, adj=0.4, (0 split)
##       reward_length     < 4845     to the left,  agree=0.714, adj=0.4, (0 split)
##       mo_launched       splits as  ---RRLR-RL-R, agree=0.667, adj=0.3, (0 split)
## 
## Node number 7731: 121 observations,    complexity param=0.0001127396
##   mean=0.5950413, MSE=0.2409671 
##   left son=15462 (108 obs) right son=15463 (13 obs)
##   Primary splits:
##       campaign_duration  < 60.02    to the left,  improve=0.031499130, (0 missing)
##       description_length < 874.5    to the right, improve=0.017505500, (0 missing)
##       mo_launched        splits as  ---RLRR-RR-L, improve=0.017162190, (0 missing)
##       category           splits as  ----R-----L--L-, improve=0.011231090, (0 missing)
##       goal               < 1350     to the left,  improve=0.009728296, (0 missing)
## 
## Node number 7778: 22 observations,    complexity param=0.0001347957
##   mean=0.4090909, MSE=0.2417355 
##   left son=15556 (11 obs) right son=15557 (11 obs)
##   Primary splits:
##       mo_launched        splits as  -RLRRRLL-L--, improve=0.41880340, (0 missing)
##       description_length < 1682     to the left,  improve=0.13683350, (0 missing)
##       goal               < 2100     to the left,  improve=0.07692308, (0 missing)
##       reward_length      < 7870     to the right, improve=0.07692308, (0 missing)
##       campaign_duration  < 60.02    to the left,  improve=0.05087505, (0 missing)
##   Surrogate splits:
##       description_length < 1682     to the left,  agree=0.818, adj=0.636, (0 split)
##       goal               < 2100     to the left,  agree=0.636, adj=0.273, (0 split)
##       reward_length      < 10275.5  to the left,  agree=0.636, adj=0.273, (0 split)
##       campaign_duration  < 60.29    to the left,  agree=0.591, adj=0.182, (0 split)
##       social_media_count splits as  LR--,         agree=0.591, adj=0.182, (0 split)
## 
## Node number 7779: 119 observations,    complexity param=0.0001347957
##   mean=0.6722689, MSE=0.2203234 
##   left son=15558 (22 obs) right son=15559 (97 obs)
##   Primary splits:
##       campaign_duration < 21.085   to the left,  improve=0.03054950, (0 missing)
##       reward_length     < 8865.5   to the right, improve=0.02884858, (0 missing)
##       mo_launched       splits as  -LLLLLLR-L--, improve=0.02592701, (0 missing)
##       goal              < 819      to the left,  improve=0.01814497, (0 missing)
##       usa               < 0.5      to the left,  improve=0.01235739, (0 missing)
##   Surrogate splits:
##       social_media_count splits as  RRRL,         agree=0.824, adj=0.045, (0 split)
##       goal               < 235      to the left,  agree=0.824, adj=0.045, (0 split)
##       description_length < 2670     to the right, agree=0.824, adj=0.045, (0 split)
##       reward_length      < 6597     to the left,  agree=0.824, adj=0.045, (0 split)
## 
## Node number 7824: 10 observations
##   mean=0, MSE=0 
## 
## Node number 7825: 22 observations
##   mean=0.5, MSE=0.25 
## 
## Node number 7826: 17 observations
##   mean=0.5294118, MSE=0.2491349 
## 
## Node number 7827: 8 observations
##   mean=1, MSE=0 
## 
## Node number 7940: 14 observations
##   mean=0.07142857, MSE=0.06632653 
## 
## Node number 7941: 10 observations
##   mean=0.5, MSE=0.25 
## 
## Node number 7942: 23 observations
##   mean=0.4347826, MSE=0.2457467 
## 
## Node number 7943: 8 observations
##   mean=0.875, MSE=0.109375 
## 
## Node number 7994: 17 observations
##   mean=0.4117647, MSE=0.2422145 
## 
## Node number 7995: 47 observations,    complexity param=0.0001447902
##   mean=0.7659574, MSE=0.1792666 
##   left son=15990 (14 obs) right son=15991 (33 obs)
##   Primary splits:
##       reward_length      < 5294     to the left,  improve=0.16739360, (0 missing)
##       description_length < 783      to the right, improve=0.08680671, (0 missing)
##       goal               < 1225     to the right, improve=0.04344036, (0 missing)
##       category           splits as  ------L---R----, improve=0.02862591, (0 missing)
##       social_media_count splits as  LRLR, improve=0.01967729, (0 missing)
##   Surrogate splits:
##       goal              < 625      to the left,  agree=0.766, adj=0.214, (0 split)
##       campaign_duration < 53.87    to the right, agree=0.723, adj=0.071, (0 split)
## 
## Node number 7996: 8 observations
##   mean=0.375, MSE=0.234375 
## 
## Node number 7997: 130 observations,    complexity param=0.0001304682
##   mean=0.7307692, MSE=0.1967456 
##   left son=15994 (108 obs) right son=15995 (22 obs)
##   Primary splits:
##       campaign_duration  < 40.335   to the right, improve=0.032923220, (0 missing)
##       description_length < 1067     to the left,  improve=0.030701750, (0 missing)
##       reward_length      < 11922.5  to the left,  improve=0.027403220, (0 missing)
##       goal               < 3950     to the right, improve=0.007980478, (0 missing)
##       mo_launched        splits as  L-RR-----R-R, improve=0.003801521, (0 missing)
## 
## Node number 8000: 43 observations,    complexity param=0.0001373511
##   mean=0.3488372, MSE=0.2271498 
##   left son=16000 (9 obs) right son=16001 (34 obs)
##   Primary splits:
##       description_length < 622      to the right, improve=0.14180670, (0 missing)
##       social_media_count splits as  RLR-, improve=0.12012930, (0 missing)
##       category           splits as  ----L-R---L--R-, improve=0.04241308, (0 missing)
##       reward_length      < 5307.5   to the right, improve=0.03847643, (0 missing)
##       goal               < 2475     to the right, improve=0.02659341, (0 missing)
## 
## Node number 8001: 25 observations
##   mean=0.64, MSE=0.2304 
## 
## Node number 8004: 7 observations
##   mean=0.2857143, MSE=0.2040816 
## 
## Node number 8005: 199 observations,    complexity param=0.0001309726
##   mean=0.6733668, MSE=0.2199439 
##   left son=16010 (187 obs) right son=16011 (12 obs)
##   Primary splits:
##       description_length < 731      to the right, improve=0.031127780, (0 missing)
##       campaign_duration  < 23.325   to the right, improve=0.016361410, (0 missing)
##       goal               < 2050     to the right, improve=0.011570110, (0 missing)
##       social_media_count splits as  RLLR,         improve=0.011462700, (0 missing)
##       reward_length      < 4233.5   to the left,  improve=0.009933249, (0 missing)
## 
## Node number 8008: 10 observations
##   mean=0.3, MSE=0.21 
## 
## Node number 8009: 116 observations,    complexity param=0.0001049023
##   mean=0.6551724, MSE=0.2259215 
##   left son=16018 (79 obs) right son=16019 (37 obs)
##   Primary splits:
##       category           splits as  ----L-R---L----, improve=0.03429065, (0 missing)
##       description_length < 911      to the left,  improve=0.02783955, (0 missing)
##       goal               < 1465     to the left,  improve=0.02009783, (0 missing)
##       mo_launched        splits as  R--LL---RR-R, improve=0.01976608, (0 missing)
##       reward_length      < 4924     to the right, improve=0.01578947, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 33.395   to the left,  agree=0.716, adj=0.108, (0 split)
##       description_length < 1113     to the left,  agree=0.698, adj=0.054, (0 split)
## 
## Node number 8020: 12 observations
##   mean=0.4166667, MSE=0.2430556 
## 
## Node number 8021: 8 observations
##   mean=0.875, MSE=0.109375 
## 
## Node number 8064: 13 observations
##   mean=0, MSE=0 
## 
## Node number 8065: 14 observations
##   mean=0.5, MSE=0.25 
## 
## Node number 8068: 97 observations,    complexity param=0.0001862853
##   mean=0.5876289, MSE=0.2423212 
##   left son=16136 (7 obs) right son=16137 (90 obs)
##   Primary splits:
##       description_length < 1310.5   to the right, improve=0.110833300, (0 missing)
##       goal               < 3900     to the right, improve=0.056353560, (0 missing)
##       reward_length      < 8081.5   to the right, improve=0.037674580, (0 missing)
##       mo_launched        splits as  ----RLLRL--L, improve=0.017578460, (0 missing)
##       social_media_count splits as  LRRL,         improve=0.005645811, (0 missing)
## 
## Node number 8069: 613 observations,    complexity param=0.0001199014
##   mean=0.6982055, MSE=0.2107146 
##   left son=16138 (600 obs) right son=16139 (13 obs)
##   Primary splits:
##       reward_length      < 4274.5   to the right, improve=0.005199552, (0 missing)
##       description_length < 1341     to the right, improve=0.004992906, (0 missing)
##       campaign_duration  < 38.31    to the right, improve=0.004427437, (0 missing)
##       goal               < 3525     to the right, improve=0.002624974, (0 missing)
##       mo_launched        splits as  ----RLRRL--R, improve=0.001495301, (0 missing)
## 
## Node number 8070: 508 observations,    complexity param=0.00011046
##   mean=0.742126, MSE=0.191375 
##   left son=16140 (360 obs) right son=16141 (148 obs)
##   Primary splits:
##       goal               < 1650     to the right, improve=0.008238518, (0 missing)
##       reward_length      < 6335     to the left,  improve=0.006633189, (0 missing)
##       mo_launched        splits as  LRRL-----LL-, improve=0.004640158, (0 missing)
##       usa                < 0.5      to the left,  improve=0.004284567, (0 missing)
##       description_length < 4640     to the left,  improve=0.003627860, (0 missing)
##   Surrogate splits:
##       reward_length      < 4243.5   to the right, agree=0.715, adj=0.020, (0 split)
##       description_length < 1127     to the right, agree=0.713, adj=0.014, (0 split)
## 
## Node number 8071: 199 observations,    complexity param=0.0001439484
##   mean=0.8341709, MSE=0.1383298 
##   left son=16142 (41 obs) right son=16143 (158 obs)
##   Primary splits:
##       reward_length      < 5470     to the left,  improve=0.05786679, (0 missing)
##       campaign_duration  < 29.99    to the left,  improve=0.04418192, (0 missing)
##       mo_launched        splits as  RRLR-----LR-, improve=0.01610248, (0 missing)
##       description_length < 3232.5   to the right, improve=0.01456355, (0 missing)
##       goal               < 1900     to the right, improve=0.01002644, (0 missing)
##   Surrogate splits:
##       description_length < 6531.5   to the right, agree=0.799, adj=0.024, (0 split)
## 
## Node number 8072: 15 observations
##   mean=0.2666667, MSE=0.1955556 
## 
## Node number 8073: 8 observations
##   mean=0.75, MSE=0.1875 
## 
## Node number 8080: 120 observations,    complexity param=0.0001925406
##   mean=0.5666667, MSE=0.2455556 
##   left son=16160 (31 obs) right son=16161 (89 obs)
##   Primary splits:
##       campaign_duration < 32.89    to the right, improve=0.06364854, (0 missing)
##       goal              < 3750     to the right, improve=0.03550847, (0 missing)
##       reward_length     < 6482     to the left,  improve=0.03542422, (0 missing)
##       mo_launched       splits as  --RRLRRLLL--, improve=0.03151766, (0 missing)
##       category          splits as  -RRRLRR--------, improve=0.01991293, (0 missing)
##   Surrogate splits:
##       goal          < 425      to the left,  agree=0.767, adj=0.097, (0 split)
##       reward_length < 5909     to the left,  agree=0.767, adj=0.097, (0 split)
##       category      splits as  -RRLRRR--------, agree=0.750, adj=0.032, (0 split)
## 
## Node number 8081: 59 observations
##   mean=0.7966102, MSE=0.1620224 
## 
## Node number 8082: 8 observations
##   mean=0.375, MSE=0.234375 
## 
## Node number 8083: 168 observations,    complexity param=0.0001478085
##   mean=0.8095238, MSE=0.154195 
##   left son=16166 (20 obs) right son=16167 (148 obs)
##   Primary splits:
##       goal               < 3250     to the right, improve=0.03847377, (0 missing)
##       mo_launched        splits as  --LLLRRRRR--, improve=0.03709888, (0 missing)
##       reward_length      < 4378     to the left,  improve=0.03667567, (0 missing)
##       description_length < 1195     to the right, improve=0.01331853, (0 missing)
##       campaign_duration  < 40.71    to the right, improve=0.01166276, (0 missing)
## 
## Node number 8088: 49 observations,    complexity param=0.0001251217
##   mean=0.5510204, MSE=0.2473969 
##   left son=16176 (39 obs) right son=16177 (10 obs)
##   Primary splits:
##       reward_length      < 8867     to the left,  improve=0.06424933, (0 missing)
##       goal               < 1310     to the right, improve=0.05190418, (0 missing)
##       campaign_duration  < 30.08    to the left,  improve=0.04324237, (0 missing)
##       social_media_count splits as  LRLR,         improve=0.03122690, (0 missing)
##       mo_launched        splits as  RR---RRL-LRL, improve=0.02844828, (0 missing)
##   Surrogate splits:
##       social_media_count splits as  LLLR, agree=0.816, adj=0.1, (0 split)
##       category           splits as  ----LRL--------, agree=0.816, adj=0.1, (0 split)
## 
## Node number 8089: 20 observations
##   mean=0.9, MSE=0.09 
## 
## Node number 8092: 94 observations,    complexity param=0.0001591987
##   mean=0.7340426, MSE=0.1952241 
##   left son=16184 (71 obs) right son=16185 (23 obs)
##   Primary splits:
##       mo_launched        splits as  RLLLRLRLLLLL, improve=0.08213247, (0 missing)
##       reward_length      < 5433.5   to the left,  improve=0.07221389, (0 missing)
##       goal               < 775      to the left,  improve=0.02404269, (0 missing)
##       campaign_duration  < 30.075   to the left,  improve=0.01959552, (0 missing)
##       description_length < 3715     to the left,  improve=0.01321519, (0 missing)
##   Surrogate splits:
##       reward_length      < 7308.5   to the left,  agree=0.777, adj=0.087, (0 split)
##       social_media_count splits as  LLLR,         agree=0.766, adj=0.043, (0 split)
## 
## Node number 8093: 514 observations,    complexity param=0.0001591987
##   mean=0.8696498, MSE=0.113359 
##   left son=16186 (246 obs) right son=16187 (268 obs)
##   Primary splits:
##       goal               < 2995.5   to the right, improve=0.019056160, (0 missing)
##       mo_launched        splits as  RRRRLRLLLRRL, improve=0.017369030, (0 missing)
##       reward_length      < 5960     to the right, improve=0.007776303, (0 missing)
##       description_length < 6575     to the left,  improve=0.006366411, (0 missing)
##       campaign_duration  < 59.98    to the right, improve=0.006030391, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 38.48    to the right, agree=0.558, adj=0.077, (0 split)
##       mo_launched        splits as  LLLRLRRRRRRR, agree=0.553, adj=0.065, (0 split)
##       reward_length      < 4752.5   to the left,  agree=0.537, adj=0.033, (0 split)
##       category           splits as  -RLRR-R--L----L, agree=0.529, adj=0.016, (0 split)
##       description_length < 3000.5   to the left,  agree=0.527, adj=0.012, (0 split)
## 
## Node number 8096: 13 observations
##   mean=0.3076923, MSE=0.2130178 
## 
## Node number 8097: 26 observations,    complexity param=0.0001123551
##   mean=0.6538462, MSE=0.2263314 
##   left son=16194 (12 obs) right son=16195 (14 obs)
##   Primary splits:
##       description_length < 2822.5   to the right, improve=0.213040800, (0 missing)
##       goal               < 3029     to the right, improve=0.046477850, (0 missing)
##       reward_length      < 10712.5  to the right, improve=0.035926350, (0 missing)
##       campaign_duration  < 30.26    to the right, improve=0.011057050, (0 missing)
##       mo_launched        splits as  ----L-R--LR-, improve=0.006535948, (0 missing)
##   Surrogate splits:
##       reward_length      < 10712.5  to the right, agree=0.731, adj=0.417, (0 split)
##       campaign_duration  < 30.02    to the left,  agree=0.615, adj=0.167, (0 split)
##       social_media_count splits as  -LR-,         agree=0.615, adj=0.167, (0 split)
##       mo_launched        splits as  ----L-L--RR-, agree=0.615, adj=0.167, (0 split)
##       goal               < 3029     to the right, agree=0.615, adj=0.167, (0 split)
## 
## Node number 8100: 139 observations,    complexity param=0.0001237837
##   mean=0.6978417, MSE=0.2108587 
##   left son=16200 (129 obs) right son=16201 (10 obs)
##   Primary splits:
##       campaign_duration  < 59.74    to the left,  improve=0.03356509, (0 missing)
##       reward_length      < 13856.5  to the left,  improve=0.03180961, (0 missing)
##       social_media_count splits as  L-RL,         improve=0.03042977, (0 missing)
##       description_length < 3125.5   to the left,  improve=0.01827209, (0 missing)
##       mo_launched        splits as  ---RL-L-RLL-, improve=0.01450703, (0 missing)
## 
## Node number 8101: 105 observations
##   mean=0.8285714, MSE=0.1420408 
## 
## Node number 8136: 12 observations
##   mean=0.1666667, MSE=0.1388889 
## 
## Node number 8137: 19 observations
##   mean=0.6315789, MSE=0.232687 
## 
## Node number 8162: 36 observations,    complexity param=0.0001195038
##   mean=0.6666667, MSE=0.2222222 
##   left son=16324 (8 obs) right son=16325 (28 obs)
##   Primary splits:
##       campaign_duration  < 25.695   to the left,  improve=0.22321430, (0 missing)
##       goal               < 1450     to the left,  improve=0.06157635, (0 missing)
##       reward_length      < 7219     to the left,  improve=0.06157635, (0 missing)
##       description_length < 1872     to the right, improve=0.04058442, (0 missing)
##       mo_launched        splits as  ----R-L-L-L-, improve=0.03076923, (0 missing)
##   Surrogate splits:
##       goal          < 1450     to the left,  agree=0.861, adj=0.375, (0 split)
##       reward_length < 6880.5   to the left,  agree=0.833, adj=0.250, (0 split)
## 
## Node number 8163: 47 observations
##   mean=0.8297872, MSE=0.1412404 
## 
## Node number 9192: 24 observations
##   mean=0.04166667, MSE=0.03993056 
## 
## Node number 9193: 20 observations,    complexity param=0.0001042962
##   mean=0.45, MSE=0.2475 
##   left son=18386 (7 obs) right son=18387 (13 obs)
##   Primary splits:
##       description_length < 1975     to the left,  improve=0.205239200, (0 missing)
##       campaign_duration  < 35.93    to the right, improve=0.058719060, (0 missing)
##       goal               < 5250     to the right, improve=0.044995410, (0 missing)
##       reward_length      < 3788.5   to the left,  improve=0.044995410, (0 missing)
##       mo_launched        splits as  -----R---LR-, improve=0.000999001, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 51.655   to the right, agree=0.8, adj=0.429, (0 split)
##       usa                < 0.5      to the left,  agree=0.7, adj=0.143, (0 split)
##       social_media_count splits as  RRL-,         agree=0.7, adj=0.143, (0 split)
## 
## Node number 9194: 24 observations,    complexity param=0.0001127251
##   mean=0.3333333, MSE=0.2222222 
##   left son=18388 (7 obs) right son=18389 (17 obs)
##   Primary splits:
##       mo_launched        splits as  R-RRLR---RL-, improve=0.20588240, (0 missing)
##       description_length < 1768.5   to the right, improve=0.10504200, (0 missing)
##       reward_length      < 3130     to the right, improve=0.03125000, (0 missing)
##       category           splits as  R---------L--L-, improve=0.01680672, (0 missing)
##       social_media_count splits as  LRRL, improve=0.01680672, (0 missing)
##   Surrogate splits:
##       category          splits as  R---------R--L-, agree=0.792, adj=0.286, (0 split)
##       goal              < 7750     to the right, agree=0.792, adj=0.286, (0 split)
##       campaign_duration < 59.995   to the right, agree=0.750, adj=0.143, (0 split)
## 
## Node number 9195: 12 observations
##   mean=0.8333333, MSE=0.1388889 
## 
## Node number 10106: 29 observations,    complexity param=0.0001117706
##   mean=0.6206897, MSE=0.235434 
##   left son=20212 (15 obs) right son=20213 (14 obs)
##   Primary splits:
##       mo_launched        splits as  RRLRLLL-R-L-, improve=0.22164500, (0 missing)
##       reward_length      < 3966     to the right, improve=0.07165085, (0 missing)
##       description_length < 3665.5   to the left,  improve=0.02948679, (0 missing)
##       campaign_duration  < 58.915   to the left,  improve=0.02705628, (0 missing)
##       goal               < 5500     to the right, improve=0.01469238, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 30.5     to the left,  agree=0.655, adj=0.286, (0 split)
##       reward_length      < 3263.5   to the right, agree=0.655, adj=0.286, (0 split)
##       description_length < 3344.5   to the right, agree=0.621, adj=0.214, (0 split)
##       goal               < 5500     to the right, agree=0.586, adj=0.143, (0 split)
##       social_media_count splits as  -LR-,         agree=0.552, adj=0.071, (0 split)
## 
## Node number 10107: 71 observations
##   mean=0.8732394, MSE=0.1106923 
## 
## Node number 10348: 66 observations
##   mean=0.1212121, MSE=0.1065197 
## 
## Node number 10349: 18 observations
##   mean=0.3888889, MSE=0.2376543 
## 
## Node number 10350: 96 observations,    complexity param=0.0001173533
##   mean=0.2083333, MSE=0.1649306 
##   left son=20700 (17 obs) right son=20701 (79 obs)
##   Primary splits:
##       reward_length      < 10237    to the right, improve=0.02916487, (0 missing)
##       campaign_duration  < 36.52    to the left,  improve=0.02730991, (0 missing)
##       description_length < 3232     to the left,  improve=0.02127346, (0 missing)
##       mo_launched        splits as  --RR-RRRLL-R, improve=0.01665827, (0 missing)
##       social_media_count splits as  LRR-,         improve=0.01611842, (0 missing)
## 
## Node number 10351: 89 observations,    complexity param=0.0001303732
##   mean=0.4157303, MSE=0.2428986 
##   left son=20702 (11 obs) right son=20703 (78 obs)
##   Primary splits:
##       campaign_duration  < 59.735   to the right, improve=0.06125787, (0 missing)
##       reward_length      < 8555.5   to the left,  improve=0.03751322, (0 missing)
##       description_length < 2061     to the left,  improve=0.02616862, (0 missing)
##       mo_launched        splits as  --RR-LLRRR-R, improve=0.01473785, (0 missing)
##       category           splits as  ------------LR-, improve=0.01206564, (0 missing)
##   Surrogate splits:
##       description_length < 1898     to the left,  agree=0.888, adj=0.091, (0 split)
## 
## Node number 10354: 102 observations,    complexity param=0.0001009297
##   mean=0.245098, MSE=0.185025 
##   left son=20708 (12 obs) right son=20709 (90 obs)
##   Primary splits:
##       campaign_duration  < 59.98    to the right, improve=0.04329004, (0 missing)
##       description_length < 3240.5   to the left,  improve=0.03363586, (0 missing)
##       reward_length      < 5598     to the left,  improve=0.02966771, (0 missing)
##       goal               < 14900    to the right, improve=0.02775293, (0 missing)
##       mo_launched        splits as  RL--L-L---L-, improve=0.02121212, (0 missing)
##   Surrogate splits:
##       reward_length < 4967     to the left,  agree=0.912, adj=0.25, (0 split)
## 
## Node number 10355: 42 observations,    complexity param=0.0001009297
##   mean=0.4285714, MSE=0.244898 
##   left son=20710 (16 obs) right son=20711 (26 obs)
##   Primary splits:
##       description_length < 2957     to the right, improve=0.08012821, (0 missing)
##       reward_length      < 5857.5   to the right, improve=0.06666667, (0 missing)
##       campaign_duration  < 46.03    to the right, improve=0.05208333, (0 missing)
##       mo_launched        splits as  LR--R-L---L-, improve=0.03222731, (0 missing)
##       goal               < 12125    to the left,  improve=0.01979472, (0 missing)
##   Surrogate splits:
##       reward_length     < 7978     to the right, agree=0.762, adj=0.375, (0 split)
##       campaign_duration < 23       to the left,  agree=0.643, adj=0.063, (0 split)
##       mo_launched       splits as  RR--R-R---L-, agree=0.643, adj=0.063, (0 split)
## 
## Node number 10358: 10 observations
##   mean=0.3, MSE=0.21 
## 
## Node number 10359: 16 observations
##   mean=0.75, MSE=0.1875 
## 
## Node number 10364: 37 observations,    complexity param=0.0001167448
##   mean=0.3513514, MSE=0.2279036 
##   left son=20728 (30 obs) right son=20729 (7 obs)
##   Primary splits:
##       campaign_duration  < 29.5     to the right, improve=0.13485960, (0 missing)
##       reward_length      < 7867     to the left,  improve=0.10267090, (0 missing)
##       category           splits as  R-------L------, improve=0.03978244, (0 missing)
##       goal               < 14500    to the left,  improve=0.03590931, (0 missing)
##       description_length < 4025     to the left,  improve=0.02674624, (0 missing)
## 
## Node number 10365: 28 observations,    complexity param=0.0001276196
##   mean=0.5714286, MSE=0.244898 
##   left son=20730 (7 obs) right son=20731 (21 obs)
##   Primary splits:
##       mo_launched        splits as  --RL-R--R---, improve=0.25000000, (0 missing)
##       goal               < 11555.56 to the left,  improve=0.19493180, (0 missing)
##       description_length < 3206     to the left,  improve=0.05208333, (0 missing)
##       campaign_duration  < 30.735   to the left,  improve=0.04273504, (0 missing)
##       reward_length      < 5536     to the left,  improve=0.02777778, (0 missing)
## 
## Node number 10382: 9 observations
##   mean=0, MSE=0 
## 
## Node number 10383: 48 observations
##   mean=0.3958333, MSE=0.2391493 
## 
## Node number 10416: 35 observations
##   mean=0.1428571, MSE=0.122449 
## 
## Node number 10417: 49 observations
##   mean=0.3673469, MSE=0.2324032 
## 
## Node number 10418: 66 observations,    complexity param=0.0001316634
##   mean=0.3939394, MSE=0.2387511 
##   left son=20836 (20 obs) right son=20837 (46 obs)
##   Primary splits:
##       goal               < 15500    to the right, improve=0.06849498, (0 missing)
##       mo_launched        splits as  -R-L--L-RL-R, improve=0.06394231, (0 missing)
##       description_length < 5211.5   to the left,  improve=0.04633484, (0 missing)
##       category           splits as  L-------R---R--, improve=0.03769231, (0 missing)
##       reward_length      < 6575     to the left,  improve=0.03132799, (0 missing)
## 
## Node number 10419: 21 observations,    complexity param=0.0001344362
##   mean=0.7619048, MSE=0.1814059 
##   left son=20838 (10 obs) right son=20839 (11 obs)
##   Primary splits:
##       mo_launched        splits as  -L-L--R-RR-R, improve=0.34375000, (0 missing)
##       description_length < 6576.5   to the right, improve=0.17604170, (0 missing)
##       campaign_duration  < 45.02    to the left,  improve=0.04338942, (0 missing)
##       reward_length      < 7953     to the left,  improve=0.03750000, (0 missing)
##       category           splits as  L-------R---L--, improve=0.01920455, (0 missing)
##   Surrogate splits:
##       description_length < 6357     to the right, agree=0.714, adj=0.4, (0 split)
##       usa                < 0.5      to the left,  agree=0.619, adj=0.2, (0 split)
##       goal               < 12500    to the right, agree=0.619, adj=0.2, (0 split)
##       reward_length      < 8875     to the left,  agree=0.619, adj=0.2, (0 split)
##       campaign_duration  < 33.31    to the left,  agree=0.571, adj=0.1, (0 split)
## 
## Node number 10464: 24 observations
##   mean=0.08333333, MSE=0.07638889 
## 
## Node number 10465: 79 observations,    complexity param=0.0001089864
##   mean=0.3924051, MSE=0.2384233 
##   left son=20930 (10 obs) right son=20931 (69 obs)
##   Primary splits:
##       reward_length      < 5976     to the left,  improve=0.05197230, (0 missing)
##       campaign_duration  < 31.06    to the left,  improve=0.03791952, (0 missing)
##       description_length < 9492     to the left,  improve=0.02571339, (0 missing)
##       goal               < 38500    to the left,  improve=0.01664424, (0 missing)
##       social_media_count splits as  LRL-,         improve=0.01435399, (0 missing)
## 
## Node number 10476: 32 observations
##   mean=0.375, MSE=0.234375 
## 
## Node number 10477: 20 observations
##   mean=0.7, MSE=0.21 
## 
## Node number 10636: 257 observations,    complexity param=0.0001262147
##   mean=0.3229572, MSE=0.2186558 
##   left son=21272 (236 obs) right son=21273 (21 obs)
##   Primary splits:
##       description_length < 1396     to the right, improve=0.016417230, (0 missing)
##       campaign_duration  < 62.25    to the left,  improve=0.014211360, (0 missing)
##       usa                < 0.5      to the left,  improve=0.011011650, (0 missing)
##       mo_launched        splits as  L-R--RR--L-R, improve=0.006625849, (0 missing)
##       goal               < 7050     to the right, improve=0.005752497, (0 missing)
## 
## Node number 10637: 10 observations
##   mean=0.7, MSE=0.21 
## 
## Node number 10646: 34 observations,    complexity param=0.0001712013
##   mean=0.2647059, MSE=0.1946367 
##   left son=21292 (14 obs) right son=21293 (20 obs)
##   Primary splits:
##       reward_length      < 5269     to the right, improve=0.25200000, (0 missing)
##       campaign_duration  < 30.23    to the left,  improve=0.12531450, (0 missing)
##       mo_launched        splits as  -R-LR--RL-R-, improve=0.09218855, (0 missing)
##       goal               < 5688.5   to the right, improve=0.07000390, (0 missing)
##       description_length < 1469     to the left,  improve=0.05807407, (0 missing)
##   Surrogate splits:
##       category           splits as  --------L---R--, agree=0.706, adj=0.286, (0 split)
##       goal               < 7000     to the right, agree=0.676, adj=0.214, (0 split)
##       social_media_count splits as  RLR-, agree=0.647, adj=0.143, (0 split)
##       mo_launched        splits as  -L-RR--RR-R-, agree=0.647, adj=0.143, (0 split)
##       description_length < 2548     to the right, agree=0.647, adj=0.143, (0 split)
## 
## Node number 10647: 193 observations,    complexity param=0.0001405862
##   mean=0.507772, MSE=0.2499396 
##   left son=21294 (179 obs) right son=21295 (14 obs)
##   Primary splits:
##       reward_length      < 5606     to the right, improve=0.02417403, (0 missing)
##       description_length < 4508     to the right, improve=0.02176874, (0 missing)
##       campaign_duration  < 20.6     to the left,  improve=0.02005087, (0 missing)
##       goal               < 4997     to the right, improve=0.01334559, (0 missing)
##       mo_launched        splits as  -R-LR--LR-L-, improve=0.01223695, (0 missing)
## 
## Node number 10652: 41 observations,    complexity param=0.0001405671
##   mean=0.4390244, MSE=0.246282 
##   left son=21304 (8 obs) right son=21305 (33 obs)
##   Primary splits:
##       mo_launched        splits as  -R-RL--RL-R-, improve=0.18972330, (0 missing)
##       reward_length      < 6483.5   to the left,  improve=0.09706668, (0 missing)
##       category           splits as  --------R---L--, improve=0.04315153, (0 missing)
##       description_length < 10008    to the left,  improve=0.03404516, (0 missing)
##       goal               < 5750     to the right, improve=0.03064757, (0 missing)
##   Surrogate splits:
##       campaign_duration < 17.71    to the left,  agree=0.854, adj=0.25, (0 split)
## 
## Node number 10653: 11 observations
##   mean=0.8181818, MSE=0.1487603 
## 
## Node number 10654: 9 observations
##   mean=0.4444444, MSE=0.2469136 
## 
## Node number 10655: 19 observations
##   mean=0.8947368, MSE=0.09418283 
## 
## Node number 10670: 128 observations,    complexity param=0.0001481675
##   mean=0.484375, MSE=0.2497559 
##   left son=21340 (84 obs) right son=21341 (44 obs)
##   Primary splits:
##       description_length < 2330.5   to the right, improve=0.03504251, (0 missing)
##       mo_launched        splits as  L-----RLRLRR, improve=0.03172877, (0 missing)
##       reward_length      < 4966     to the left,  improve=0.02701617, (0 missing)
##       campaign_duration  < 31.29    to the right, improve=0.02107928, (0 missing)
##       goal               < 4900     to the right, improve=0.01883350, (0 missing)
##   Surrogate splits:
##       campaign_duration < 16.235   to the right, agree=0.680, adj=0.068, (0 split)
##       reward_length     < 7782     to the left,  agree=0.672, adj=0.045, (0 split)
##       mo_launched       splits as  L-----LLLLLR, agree=0.664, adj=0.023, (0 split)
## 
## Node number 10671: 38 observations,    complexity param=0.0001278527
##   mean=0.7105263, MSE=0.2056787 
##   left son=21342 (8 obs) right son=21343 (30 obs)
##   Primary splits:
##       description_length < 2380     to the left,  improve=0.14595960, (0 missing)
##       reward_length      < 8720     to the right, improve=0.12979400, (0 missing)
##       mo_launched        splits as  R-----LLLRRL, improve=0.10864200, (0 missing)
##       goal               < 6585     to the left,  improve=0.06233766, (0 missing)
##       campaign_duration  < 31.02    to the left,  improve=0.01390091, (0 missing)
##   Surrogate splits:
##       campaign_duration < 36.715   to the right, agree=0.816, adj=0.125, (0 split)
##       mo_launched       splits as  R-----RRRRRL, agree=0.816, adj=0.125, (0 split)
## 
## Node number 10676: 12 observations
##   mean=0.1666667, MSE=0.1388889 
## 
## Node number 10677: 35 observations,    complexity param=0.0001480224
##   mean=0.6, MSE=0.24 
##   left son=21354 (12 obs) right son=21355 (23 obs)
##   Primary splits:
##       reward_length      < 5591.5   to the left,  improve=0.15458940, (0 missing)
##       campaign_duration  < 38.405   to the right, improve=0.12500000, (0 missing)
##       goal               < 5250     to the left,  improve=0.07051282, (0 missing)
##       mo_launched        splits as  -L-LRL------, improve=0.02777778, (0 missing)
##       description_length < 1064     to the left,  improve=0.02173913, (0 missing)
##   Surrogate splits:
##       social_media_count splits as  RLL-, agree=0.743, adj=0.250, (0 split)
##       category           splits as  R------------L-, agree=0.686, adj=0.083, (0 split)
## 
## Node number 10680: 81 observations,    complexity param=0.000101404
##   mean=0.5802469, MSE=0.2435604 
##   left son=21360 (65 obs) right son=21361 (16 obs)
##   Primary splits:
##       social_media_count splits as  LRL-,         improve=0.05451586, (0 missing)
##       campaign_duration  < 29.165   to the right, improve=0.04981556, (0 missing)
##       description_length < 5111     to the right, improve=0.03369197, (0 missing)
##       reward_length      < 8021.5   to the left,  improve=0.02912294, (0 missing)
##       mo_launched        splits as  -LLRLR------, improve=0.02403650, (0 missing)
##   Surrogate splits:
##       campaign_duration < 15.705   to the right, agree=0.815, adj=0.062, (0 split)
## 
## Node number 10681: 10 observations
##   mean=0.9, MSE=0.09 
## 
## Node number 10682: 8 observations
##   mean=0.5, MSE=0.25 
## 
## Node number 10683: 19 observations
##   mean=0.9473684, MSE=0.0498615 
## 
## Node number 10748: 8 observations
##   mean=0.25, MSE=0.1875 
## 
## Node number 10749: 12 observations
##   mean=0.75, MSE=0.1875 
## 
## Node number 10750: 70 observations,    complexity param=0.0001018293
##   mean=0.6714286, MSE=0.2206122 
##   left son=21500 (52 obs) right son=21501 (18 obs)
##   Primary splits:
##       category           splits as  R-------L---LR-, improve=0.04113001, (0 missing)
##       description_length < 5050.5   to the left,  improve=0.03805027, (0 missing)
##       reward_length      < 10179.5  to the right, improve=0.02962943, (0 missing)
##       social_media_count splits as  RL-L, improve=0.02502308, (0 missing)
##       campaign_duration  < 31.77    to the right, improve=0.01942646, (0 missing)
##   Surrogate splits:
##       goal          < 4550     to the right, agree=0.771, adj=0.111, (0 split)
##       reward_length < 9126.5   to the right, agree=0.757, adj=0.056, (0 split)
## 
## Node number 10751: 89 observations
##   mean=0.8314607, MSE=0.1401338 
## 
## Node number 10894: 7 observations
##   mean=0.1428571, MSE=0.122449 
## 
## Node number 10895: 22 observations,    complexity param=0.0001331054
##   mean=0.6363636, MSE=0.231405 
##   left son=21790 (8 obs) right son=21791 (14 obs)
##   Primary splits:
##       goal               < 180000   to the right, improve=0.36862240, (0 missing)
##       social_media_count splits as  RLL-,         improve=0.14285710, (0 missing)
##       reward_length      < 17921.5  to the right, improve=0.11019540, (0 missing)
##       description_length < 9047.5   to the right, improve=0.09829932, (0 missing)
##       mo_launched        splits as  -R-R-----L-R, improve=0.03188776, (0 missing)
##   Surrogate splits:
##       description_length < 16222    to the right, agree=0.727, adj=0.250, (0 split)
##       reward_length      < 21708.5  to the right, agree=0.727, adj=0.250, (0 split)
##       mo_launched        splits as  -R-L-----R-R, agree=0.682, adj=0.125, (0 split)
## 
## Node number 10906: 15 observations
##   mean=0.2666667, MSE=0.1955556 
## 
## Node number 10907: 13 observations
##   mean=0.7692308, MSE=0.1775148 
## 
## Node number 10908: 44 observations,    complexity param=0.0001451602
##   mean=0.3863636, MSE=0.2370868 
##   left son=21816 (27 obs) right son=21817 (17 obs)
##   Primary splits:
##       reward_length      < 16666.5  to the left,  improve=0.10822520, (0 missing)
##       goal               < 53461.5  to the left,  improve=0.09277370, (0 missing)
##       description_length < 8533     to the left,  improve=0.08217312, (0 missing)
##       social_media_count splits as  RLR-,         improve=0.05828405, (0 missing)
##       campaign_duration  < 32.265   to the left,  improve=0.03558460, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 30.04    to the left,  agree=0.727, adj=0.294, (0 split)
##       social_media_count splits as  LLR-,         agree=0.659, adj=0.118, (0 split)
##       description_length < 24136.5  to the left,  agree=0.659, adj=0.118, (0 split)
##       goal               < 32500    to the right, agree=0.636, adj=0.059, (0 split)
## 
## Node number 10909: 9 observations
##   mean=0.7777778, MSE=0.1728395 
## 
## Node number 11016: 104 observations
##   mean=0.2980769, MSE=0.2092271 
## 
## Node number 11017: 10 observations
##   mean=0.7, MSE=0.21 
## 
## Node number 11020: 15 observations
##   mean=0.06666667, MSE=0.06222222 
## 
## Node number 11021: 8 observations
##   mean=0.625, MSE=0.234375 
## 
## Node number 11022: 23 observations
##   mean=0.3478261, MSE=0.2268431 
## 
## Node number 11023: 54 observations,    complexity param=0.000104656
##   mean=0.6851852, MSE=0.2157064 
##   left son=22046 (25 obs) right son=22047 (29 obs)
##   Primary splits:
##       description_length < 2879.5   to the right, improve=0.062630340, (0 missing)
##       reward_length      < 13966.5  to the right, improve=0.052683520, (0 missing)
##       campaign_duration  < 47.03    to the right, improve=0.045467070, (0 missing)
##       mo_launched        splits as  -R-L-LRL--L-, improve=0.038087200, (0 missing)
##       goal               < 6250     to the left,  improve=0.007949126, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 31.935   to the left,  agree=0.630, adj=0.20, (0 split)
##       mo_launched        splits as  -R-L-LRR--R-, agree=0.630, adj=0.20, (0 split)
##       reward_length      < 16419.5  to the left,  agree=0.630, adj=0.20, (0 split)
##       goal               < 6250     to the right, agree=0.593, adj=0.12, (0 split)
##       social_media_count splits as  R-L-,         agree=0.556, adj=0.04, (0 split)
## 
## Node number 11082: 18 observations
##   mean=0.3333333, MSE=0.2222222 
## 
## Node number 11083: 133 observations,    complexity param=0.000125572
##   mean=0.5714286, MSE=0.244898 
##   left son=22166 (88 obs) right son=22167 (45 obs)
##   Primary splits:
##       mo_launched        splits as  --LRLL-R-RLL, improve=0.02880892, (0 missing)
##       reward_length      < 14120.5  to the left,  improve=0.02154558, (0 missing)
##       description_length < 4778.5   to the right, improve=0.01851852, (0 missing)
##       usa                < 0.5      to the left,  improve=0.01680108, (0 missing)
##       goal               < 14125    to the left,  improve=0.01394160, (0 missing)
##   Surrogate splits:
##       campaign_duration < 40.96    to the left,  agree=0.684, adj=0.067, (0 split)
##       reward_length     < 21104.5  to the left,  agree=0.684, adj=0.067, (0 split)
##       goal              < 4530     to the right, agree=0.669, adj=0.022, (0 split)
## 
## Node number 11136: 92 observations,    complexity param=0.0001680759
##   mean=0.3369565, MSE=0.2234168 
##   left son=22272 (14 obs) right son=22273 (78 obs)
##   Primary splits:
##       reward_length      < 15877.5  to the right, improve=0.05664193, (0 missing)
##       campaign_duration  < 34.005   to the left,  improve=0.04379950, (0 missing)
##       social_media_count splits as  R-L-, improve=0.04185149, (0 missing)
##       category           splits as  --------L----R-, improve=0.02566465, (0 missing)
##       mo_launched        splits as  R-LL--LR-LLR, improve=0.02413185, (0 missing)
## 
## Node number 11137: 14 observations
##   mean=0.7142857, MSE=0.2040816 
## 
## Node number 11972: 25 observations
##   mean=0.2, MSE=0.16 
## 
## Node number 11973: 31 observations,    complexity param=0.0001212981
##   mean=0.4516129, MSE=0.2476587 
##   left son=23946 (24 obs) right son=23947 (7 obs)
##   Primary splits:
##       campaign_duration  < 45.2     to the left,  improve=0.19367750, (0 missing)
##       reward_length      < 5424     to the right, improve=0.07580214, (0 missing)
##       description_length < 1629.5   to the right, improve=0.07106570, (0 missing)
##       goal               < 11500    to the right, improve=0.04419768, (0 missing)
##       social_media_count splits as  LRL-,         improve=0.04222232, (0 missing)
##   Surrogate splits:
##       mo_launched splits as  L-R--L-L--L-, agree=0.839, adj=0.286, (0 split)
## 
## Node number 11974: 88 observations,    complexity param=0.0001643979
##   mean=0.5113636, MSE=0.2498709 
##   left son=23948 (29 obs) right son=23949 (59 obs)
##   Primary splits:
##       social_media_count splits as  RLLR,         improve=0.07948840, (0 missing)
##       reward_length      < 7224.5   to the left,  improve=0.03064903, (0 missing)
##       description_length < 1508     to the left,  improve=0.02953119, (0 missing)
##       goal               < 11543.5  to the right, improve=0.01808895, (0 missing)
##       campaign_duration  < 21.635   to the right, improve=0.01424151, (0 missing)
##   Surrogate splits:
##       goal               < 16500    to the right, agree=0.693, adj=0.069, (0 split)
##       description_length < 50       to the left,  agree=0.693, adj=0.069, (0 split)
##       campaign_duration  < 85.46    to the right, agree=0.682, adj=0.034, (0 split)
## 
## Node number 11975: 36 observations,    complexity param=0.0001016338
##   mean=0.75, MSE=0.1875 
##   left son=23950 (25 obs) right son=23951 (11 obs)
##   Primary splits:
##       reward_length     < 6423     to the left,  improve=0.14666670, (0 missing)
##       campaign_duration < 42.5     to the right, improve=0.13489410, (0 missing)
##       category          splits as  ------R---L----, improve=0.06666667, (0 missing)
##       mo_launched       splits as  L-R--R-R--L-, improve=0.05462653, (0 missing)
##       goal              < 14000    to the left,  improve=0.03429355, (0 missing)
##   Surrogate splits:
##       description_length < 247.5    to the right, agree=0.750, adj=0.182, (0 split)
##       campaign_duration  < 29.545   to the right, agree=0.722, adj=0.091, (0 split)
##       goal               < 10750    to the left,  agree=0.722, adj=0.091, (0 split)
## 
## Node number 11984: 53 observations
##   mean=0.2075472, MSE=0.1644713 
## 
## Node number 11985: 7 observations
##   mean=0.7142857, MSE=0.2040816 
## 
## Node number 11986: 7 observations
##   mean=0.1428571, MSE=0.122449 
## 
## Node number 11987: 52 observations,    complexity param=0.0001221256
##   mean=0.5384615, MSE=0.2485207 
##   left son=23974 (11 obs) right son=23975 (41 obs)
##   Primary splits:
##       description_length < 561      to the left,  improve=0.07623271, (0 missing)
##       category           splits as  ----R-L---R----, improve=0.03543743, (0 missing)
##       social_media_count splits as  LRR-, improve=0.03501401, (0 missing)
##       campaign_duration  < 43.795   to the right, improve=0.03291639, (0 missing)
##       mo_launched        splits as  L-RL--LR---R, improve=0.02077922, (0 missing)
## 
## Node number 11990: 16 observations
##   mean=0.3125, MSE=0.2148438 
## 
## Node number 11991: 105 observations,    complexity param=0.0001040036
##   mean=0.6380952, MSE=0.2309297 
##   left son=23982 (24 obs) right son=23983 (81 obs)
##   Primary splits:
##       campaign_duration  < 43.48    to the right, improve=0.04146119, (0 missing)
##       reward_length      < 5494     to the left,  improve=0.03132502, (0 missing)
##       description_length < 626.5    to the left,  improve=0.01963865, (0 missing)
##       mo_launched        splits as  -R--RR--RLL-, improve=0.01303098, (0 missing)
##       goal               < 4550     to the right, improve=0.01194857, (0 missing)
## 
## Node number 11992: 302 observations,    complexity param=0.0001247708
##   mean=0.5066225, MSE=0.2499561 
##   left son=23984 (168 obs) right son=23985 (134 obs)
##   Primary splits:
##       campaign_duration  < 32.78    to the left,  improve=0.011696080, (0 missing)
##       goal               < 8325     to the left,  improve=0.009035395, (0 missing)
##       reward_length      < 6061     to the left,  improve=0.007413256, (0 missing)
##       description_length < 1797     to the right, improve=0.005610104, (0 missing)
##       mo_launched        splits as  -R-R-LLRLLRL, improve=0.005496924, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  -R-R-LLLLRLR, agree=0.593, adj=0.082, (0 split)
##       description_length < 1105     to the right, agree=0.583, adj=0.060, (0 split)
##       reward_length      < 4988     to the right, agree=0.563, adj=0.015, (0 split)
## 
## Node number 11993: 98 observations,    complexity param=0.0002390147
##   mean=0.7040816, MSE=0.2083507 
##   left son=23986 (7 obs) right son=23987 (91 obs)
##   Primary splits:
##       social_media_count splits as  RRLL, improve=0.11628800, (0 missing)
##       category           splits as  ------R---L----, improve=0.06403773, (0 missing)
##       goal               < 6250     to the right, improve=0.04497751, (0 missing)
##       campaign_duration  < 60.5     to the left,  improve=0.03735910, (0 missing)
##       reward_length      < 6478.5   to the right, improve=0.03421910, (0 missing)
## 
## Node number 11994: 63 observations,    complexity param=0.0001339914
##   mean=0.5079365, MSE=0.249937 
##   left son=23988 (17 obs) right son=23989 (46 obs)
##   Primary splits:
##       mo_launched        splits as  LLRRRRLLRRRR, improve=0.06760091, (0 missing)
##       social_media_count splits as  RLLR,         improve=0.05897616, (0 missing)
##       reward_length      < 8408     to the left,  improve=0.05678763, (0 missing)
##       campaign_duration  < 45.175   to the left,  improve=0.03024602, (0 missing)
##       description_length < 1591     to the right, improve=0.02097601, (0 missing)
##   Surrogate splits:
##       description_length < 1099.5   to the left,  agree=0.762, adj=0.118, (0 split)
## 
## Node number 11995: 148 observations,    complexity param=0.0001331893
##   mean=0.7364865, MSE=0.1940741 
##   left son=23990 (84 obs) right son=23991 (64 obs)
##   Primary splits:
##       mo_launched        splits as  LRLLLRLRRLRR, improve=0.04516864, (0 missing)
##       reward_length      < 9143     to the right, improve=0.03352282, (0 missing)
##       description_length < 1100     to the left,  improve=0.01945726, (0 missing)
##       goal               < 6728.5   to the left,  improve=0.01243842, (0 missing)
##       campaign_duration  < 30.02    to the left,  improve=0.01119444, (0 missing)
##   Surrogate splits:
##       usa                < 0.5      to the right, agree=0.588, adj=0.047, (0 split)
##       social_media_count splits as  LLLR,         agree=0.588, adj=0.047, (0 split)
##       campaign_duration  < 31.73    to the left,  agree=0.581, adj=0.031, (0 split)
##       description_length < 1413.5   to the right, agree=0.581, adj=0.031, (0 split)
##       reward_length      < 7459     to the right, agree=0.574, adj=0.016, (0 split)
## 
## Node number 12008: 29 observations,    complexity param=0.000149019
##   mean=0.3448276, MSE=0.2259215 
##   left son=24016 (22 obs) right son=24017 (7 obs)
##   Primary splits:
##       reward_length      < 14318.5  to the left,  improve=0.36965140, (0 missing)
##       campaign_duration  < 40.275   to the left,  improve=0.08148496, (0 missing)
##       goal               < 9500     to the left,  improve=0.04898785, (0 missing)
##       mo_launched        splits as  --R--R--LRL-, improve=0.04678644, (0 missing)
##       description_length < 926.5    to the left,  improve=0.04060150, (0 missing)
##   Surrogate splits:
##       description_length < 275.5    to the right, agree=0.828, adj=0.286, (0 split)
##       social_media_count splits as  LLLR,         agree=0.793, adj=0.143, (0 split)
## 
## Node number 12009: 37 observations
##   mean=0.5945946, MSE=0.2410519 
## 
## Node number 12020: 23 observations,    complexity param=0.0001258232
##   mean=0.3043478, MSE=0.2117202 
##   left son=24040 (12 obs) right son=24041 (11 obs)
##   Primary splits:
##       description_length < 1564.5   to the left,  improve=0.25169100, (0 missing)
##       campaign_duration  < 30.02    to the left,  improve=0.15171700, (0 missing)
##       reward_length      < 13125    to the left,  improve=0.15171700, (0 missing)
##       mo_launched        splits as  -LL--RRR-RL-, improve=0.11337870, (0 missing)
##       goal               < 15097.09 to the left,  improve=0.05959467, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  -LL--RLL-RL-, agree=0.739, adj=0.455, (0 split)
##       reward_length      < 15574    to the left,  agree=0.739, adj=0.455, (0 split)
##       campaign_duration  < 38.025   to the left,  agree=0.696, adj=0.364, (0 split)
##       social_media_count splits as  RRLL, agree=0.652, adj=0.273, (0 split)
##       category           splits as  ------R---L----, agree=0.652, adj=0.273, (0 split)
## 
## Node number 12021: 9 observations
##   mean=0.8888889, MSE=0.09876543 
## 
## Node number 12024: 18 observations
##   mean=0.3333333, MSE=0.2222222 
## 
## Node number 12025: 96 observations,    complexity param=0.0001037198
##   mean=0.6770833, MSE=0.2186415 
##   left son=24050 (50 obs) right son=24051 (46 obs)
##   Primary splits:
##       social_media_count splits as  LRRL,         improve=0.04685640, (0 missing)
##       reward_length      < 19508.5  to the left,  improve=0.02707092, (0 missing)
##       description_length < 1810.5   to the right, improve=0.02221620, (0 missing)
##       goal               < 7250     to the left,  improve=0.02128625, (0 missing)
##       mo_launched        splits as  ---LR-LLR--L, improve=0.02004614, (0 missing)
##   Surrogate splits:
##       category           splits as  ----L-L---R---R, agree=0.604, adj=0.174, (0 split)
##       goal               < 9999.5   to the left,  agree=0.594, adj=0.152, (0 split)
##       reward_length      < 13886    to the left,  agree=0.594, adj=0.152, (0 split)
##       mo_launched        splits as  ---RR-LLL--L, agree=0.562, adj=0.087, (0 split)
##       description_length < 1279.5   to the right, agree=0.562, adj=0.087, (0 split)
## 
## Node number 12028: 7 observations
##   mean=0.2857143, MSE=0.2040816 
## 
## Node number 12029: 16 observations
##   mean=0.8125, MSE=0.1523438 
## 
## Node number 12030: 74 observations,    complexity param=0.0001262203
##   mean=0.7837838, MSE=0.1694668 
##   left son=24060 (7 obs) right son=24061 (67 obs)
##   Primary splits:
##       goal               < 6875     to the left,  improve=0.15293910, (0 missing)
##       reward_length      < 10666    to the right, improve=0.05454958, (0 missing)
##       mo_launched        splits as  RRR--L---RR-, improve=0.04255821, (0 missing)
##       description_length < 1186.5   to the left,  improve=0.04255821, (0 missing)
##       campaign_duration  < 45.535   to the left,  improve=0.03819629, (0 missing)
## 
## Node number 12031: 65 observations
##   mean=0.9384615, MSE=0.05775148 
## 
## Node number 12036: 24 observations
##   mean=0.04166667, MSE=0.03993056 
## 
## Node number 12037: 82 observations,    complexity param=0.0001436035
##   mean=0.304878, MSE=0.2119274 
##   left son=24074 (27 obs) right son=24075 (55 obs)
##   Primary splits:
##       mo_launched        splits as  LLLRRRRRLRRR, improve=0.08697076, (0 missing)
##       description_length < 4612     to the right, improve=0.03970259, (0 missing)
##       reward_length      < 7820.5   to the right, improve=0.03318566, (0 missing)
##       goal               < 29375    to the left,  improve=0.02750877, (0 missing)
##       social_media_count splits as  RLR-,         improve=0.02034834, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 29.98    to the left,  agree=0.695, adj=0.074, (0 split)
##       goal               < 28312.5  to the left,  agree=0.695, adj=0.074, (0 split)
##       description_length < 1978.5   to the left,  agree=0.695, adj=0.074, (0 split)
##       reward_length      < 8483     to the right, agree=0.695, adj=0.074, (0 split)
##       usa                < 0.5      to the left,  agree=0.683, adj=0.037, (0 split)
## 
## Node number 12038: 55 observations,    complexity param=0.0001155337
##   mean=0.3454545, MSE=0.2261157 
##   left son=24076 (15 obs) right son=24077 (40 obs)
##   Primary splits:
##       reward_length      < 11010    to the left,  improve=0.07462232, (0 missing)
##       description_length < 2458.5   to the left,  improve=0.05921053, (0 missing)
##       goal               < 38500    to the right, improve=0.03168415, (0 missing)
##       campaign_duration  < 30.985   to the left,  improve=0.02389013, (0 missing)
##       mo_launched        splits as  R-L---R-RR-R, improve=0.01314024, (0 missing)
##   Surrogate splits:
##       campaign_duration < 27.125   to the left,  agree=0.764, adj=0.133, (0 split)
##       usa               < 0.5      to the left,  agree=0.745, adj=0.067, (0 split)
## 
## Node number 12039: 68 observations,    complexity param=0.0001602301
##   mean=0.5588235, MSE=0.2465398 
##   left son=24078 (58 obs) right son=24079 (10 obs)
##   Primary splits:
##       reward_length      < 9529.5   to the right, improve=0.08140351, (0 missing)
##       campaign_duration  < 29.98    to the right, improve=0.05265396, (0 missing)
##       goal               < 31500    to the right, improve=0.04474006, (0 missing)
##       social_media_count splits as  RLR-,         improve=0.02895730, (0 missing)
##       description_length < 2435.5   to the left,  improve=0.01827485, (0 missing)
##   Surrogate splits:
##       description_length < 2012.5   to the right, agree=0.868, adj=0.1, (0 split)
## 
## Node number 12040: 42 observations
##   mean=0.1428571, MSE=0.122449 
## 
## Node number 12041: 161 observations,    complexity param=0.0002342799
##   mean=0.3975155, MSE=0.2394969 
##   left son=24082 (75 obs) right son=24083 (86 obs)
##   Primary splits:
##       goal               < 17750    to the right, improve=0.06234516, (0 missing)
##       reward_length      < 13686.5  to the left,  improve=0.03775550, (0 missing)
##       mo_launched        splits as  RRLLLLLRRRRR, improve=0.03596335, (0 missing)
##       description_length < 2387     to the right, improve=0.02139991, (0 missing)
##       campaign_duration  < 60.235   to the left,  improve=0.01904434, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 30.62    to the right, agree=0.634, adj=0.213, (0 split)
##       mo_launched        splits as  RRRRRRRLRRLL, agree=0.627, adj=0.200, (0 split)
##       description_length < 3863.5   to the right, agree=0.578, adj=0.093, (0 split)
##       reward_length      < 13804.5  to the right, agree=0.578, adj=0.093, (0 split)
##       video_status       < 0.5      to the left,  agree=0.565, adj=0.067, (0 split)
## 
## Node number 12042: 16 observations
##   mean=0.375, MSE=0.234375 
## 
## Node number 12043: 36 observations,    complexity param=0.0001096799
##   mean=0.7222222, MSE=0.2006173 
##   left son=24086 (26 obs) right son=24087 (10 obs)
##   Primary splits:
##       campaign_duration  < 31.205   to the right, improve=0.14792900, (0 missing)
##       goal               < 17860    to the left,  improve=0.13506490, (0 missing)
##       description_length < 3707.5   to the left,  improve=0.07428571, (0 missing)
##       mo_launched        splits as  LRRL-RRLLLLR, improve=0.06059172, (0 missing)
##       reward_length      < 13269    to the right, improve=0.04807692, (0 missing)
##   Surrogate splits:
##       mo_launched splits as  LLRR-LRLLLLL, agree=0.806, adj=0.3, (0 split)
##       goal        < 21500    to the left,  agree=0.750, adj=0.1, (0 split)
## 
## Node number 12044: 233 observations,    complexity param=0.0002264953
##   mean=0.4506438, MSE=0.247564 
##   left son=24088 (50 obs) right son=24089 (183 obs)
##   Primary splits:
##       campaign_duration  < 46.73    to the right, improve=0.04011223, (0 missing)
##       goal               < 19155    to the right, improve=0.03336044, (0 missing)
##       social_media_count splits as  RRL-,         improve=0.02227101, (0 missing)
##       description_length < 3953     to the right, improve=0.02102588, (0 missing)
##       mo_launched        splits as  R--LLRR-L-R-, improve=0.01429394, (0 missing)
##   Surrogate splits:
##       description_length < 4003.5   to the right, agree=0.798, adj=0.06, (0 split)
##       video_status       < 0.5      to the left,  agree=0.794, adj=0.04, (0 split)
## 
## Node number 12045: 94 observations,    complexity param=0.0001104786
##   mean=0.6276596, MSE=0.233703 
##   left son=24090 (51 obs) right son=24091 (43 obs)
##   Primary splits:
##       mo_launched        splits as  L--RRLL-R-L-, improve=0.04898726, (0 missing)
##       reward_length      < 7604     to the left,  improve=0.04206272, (0 missing)
##       social_media_count splits as  RRLL,         improve=0.03924797, (0 missing)
##       campaign_duration  < 26.185   to the right, improve=0.02435103, (0 missing)
##       description_length < 4396.5   to the right, improve=0.02296958, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 35.215   to the left,  agree=0.617, adj=0.163, (0 split)
##       reward_length      < 7996     to the right, agree=0.617, adj=0.163, (0 split)
##       goal               < 23207.5  to the left,  agree=0.585, adj=0.093, (0 split)
##       description_length < 4323     to the right, agree=0.585, adj=0.093, (0 split)
##       video_status       < 0.5      to the right, agree=0.553, adj=0.023, (0 split)
## 
## Node number 12046: 43 observations,    complexity param=0.0001249407
##   mean=0.5348837, MSE=0.2487831 
##   left son=24092 (23 obs) right son=24093 (20 obs)
##   Primary splits:
##       mo_launched        splits as  -RL----L-L-R, improve=0.16174390, (0 missing)
##       reward_length      < 6685     to the right, improve=0.08561265, (0 missing)
##       campaign_duration  < 60.52    to the left,  improve=0.08116805, (0 missing)
##       social_media_count splits as  LRL-,         improve=0.07200210, (0 missing)
##       goal               < 19000    to the left,  improve=0.02367150, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 45.865   to the left,  agree=0.605, adj=0.15, (0 split)
##       reward_length      < 6395     to the right, agree=0.605, adj=0.15, (0 split)
##       social_media_count splits as  LRL-,         agree=0.581, adj=0.10, (0 split)
##       description_length < 2093     to the right, agree=0.581, adj=0.10, (0 split)
##       video_status       < 0.5      to the right, agree=0.558, adj=0.05, (0 split)
## 
## Node number 12047: 150 observations,    complexity param=0.0001007212
##   mean=0.68, MSE=0.2176 
##   left son=24094 (15 obs) right son=24095 (135 obs)
##   Primary splits:
##       reward_length      < 5835.5   to the left,  improve=0.02323893, (0 missing)
##       goal               < 15750    to the right, improve=0.02232445, (0 missing)
##       campaign_duration  < 28.015   to the left,  improve=0.01194853, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.01063550, (0 missing)
##       description_length < 4932     to the right, improve=0.01063550, (0 missing)
## 
## Node number 12052: 15 observations
##   mean=0.3333333, MSE=0.2222222 
## 
## Node number 12053: 7 observations
##   mean=0.8571429, MSE=0.122449 
## 
## Node number 12082: 17 observations
##   mean=0.2941176, MSE=0.2076125 
## 
## Node number 12083: 7 observations
##   mean=0.8571429, MSE=0.122449 
## 
## Node number 12088: 96 observations,    complexity param=0.000170796
##   mean=0.53125, MSE=0.2490234 
##   left son=24176 (69 obs) right son=24177 (27 obs)
##   Primary splits:
##       description_length < 9342     to the left,  improve=0.068961090, (0 missing)
##       reward_length      < 16158.5  to the right, improve=0.052058420, (0 missing)
##       goal               < 49250    to the right, improve=0.024099860, (0 missing)
##       mo_launched        splits as  R--RR-RLRR--, improve=0.022471210, (0 missing)
##       campaign_duration  < 29.525   to the left,  improve=0.008912656, (0 missing)
##   Surrogate splits:
##       mo_launched  splits as  L--LL-LRLL--, agree=0.740, adj=0.074, (0 split)
##       goal         < 26650    to the right, agree=0.740, adj=0.074, (0 split)
##       video_status < 0.5      to the right, agree=0.729, adj=0.037, (0 split)
## 
## Node number 12089: 57 observations
##   mean=0.754386, MSE=0.1852878 
## 
## Node number 12090: 109 observations,    complexity param=0.0001901052
##   mean=0.6880734, MSE=0.2146284 
##   left son=24180 (20 obs) right son=24181 (89 obs)
##   Primary splits:
##       reward_length      < 14777    to the right, improve=0.08688786, (0 missing)
##       description_length < 5857     to the left,  improve=0.06169962, (0 missing)
##       campaign_duration  < 30.39    to the right, improve=0.02187875, (0 missing)
##       mo_launched        splits as  -R--RL-RR---, improve=0.01803140, (0 missing)
##       goal               < 17500    to the left,  improve=0.01747552, (0 missing)
## 
## Node number 12091: 115 observations
##   mean=0.8608696, MSE=0.1197732 
## 
## Node number 12092: 63 observations,    complexity param=0.000101825
##   mean=0.6825397, MSE=0.2166793 
##   left son=24184 (51 obs) right son=24185 (12 obs)
##   Primary splits:
##       reward_length      < 19226    to the right, improve=0.05952462, (0 missing)
##       social_media_count splits as  LRRL,         improve=0.05079655, (0 missing)
##       campaign_duration  < 39.97    to the left,  improve=0.04197674, (0 missing)
##       description_length < 14333.5  to the right, improve=0.03720930, (0 missing)
##       goal               < 20500    to the left,  improve=0.02901492, (0 missing)
## 
## Node number 12093: 11 observations
##   mean=1, MSE=0 
## 
## Node number 12108: 286 observations,    complexity param=0.0001480169
##   mean=0.5804196, MSE=0.2435327 
##   left son=24216 (16 obs) right son=24217 (270 obs)
##   Primary splits:
##       campaign_duration  < 77.01    to the right, improve=0.026566270, (0 missing)
##       description_length < 3803     to the left,  improve=0.018781770, (0 missing)
##       goal               < 11545    to the right, improve=0.007398302, (0 missing)
##       reward_length      < 11640.5  to the left,  improve=0.005181180, (0 missing)
##       social_media_count splits as  LLRR,         improve=0.003232524, (0 missing)
## 
## Node number 12109: 402 observations,    complexity param=0.0001480169
##   mean=0.6616915, MSE=0.2238558 
##   left son=24218 (86 obs) right son=24219 (316 obs)
##   Primary splits:
##       reward_length      < 6381     to the left,  improve=0.019549470, (0 missing)
##       description_length < 2528     to the left,  improve=0.008748172, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.007221868, (0 missing)
##       campaign_duration  < 41.905   to the right, improve=0.004723611, (0 missing)
##       social_media_count splits as  RRLR,         improve=0.003709680, (0 missing)
## 
## Node number 12110: 7 observations
##   mean=0.4285714, MSE=0.244898 
## 
## Node number 12111: 24 observations
##   mean=0.9166667, MSE=0.07638889 
## 
## Node number 12120: 14 observations
##   mean=0.2857143, MSE=0.2040816 
## 
## Node number 12121: 24 observations,    complexity param=0.0001495628
##   mean=0.6666667, MSE=0.2222222 
##   left son=24242 (11 obs) right son=24243 (13 obs)
##   Primary splits:
##       reward_length      < 8543.5   to the right, improve=0.3496503, (0 missing)
##       category           splits as  ------R---L----, improve=0.2689076, (0 missing)
##       description_length < 5204.5   to the right, improve=0.1250000, (0 missing)
##       mo_launched        splits as  --R-L--L-L-R, improve=0.1250000, (0 missing)
##       goal               < 11305.56 to the right, improve=0.1050420, (0 missing)
##   Surrogate splits:
##       category           splits as  ------R---L----, agree=0.750, adj=0.455, (0 split)
##       mo_launched        splits as  --R-L--R-L-R, agree=0.708, adj=0.364, (0 split)
##       description_length < 4730     to the right, agree=0.667, adj=0.273, (0 split)
##       campaign_duration  < 48.41    to the right, agree=0.625, adj=0.182, (0 split)
##       social_media_count splits as  R-LR, agree=0.625, adj=0.182, (0 split)
## 
## Node number 12144: 54 observations
##   mean=0.4259259, MSE=0.244513 
## 
## Node number 12145: 374 observations,    complexity param=0.0002656689
##   mean=0.6951872, MSE=0.211902 
##   left son=24290 (176 obs) right son=24291 (198 obs)
##   Primary splits:
##       goal               < 6550     to the right, improve=0.03192055, (0 missing)
##       social_media_count splits as  RLRL,         improve=0.02850442, (0 missing)
##       usa                < 0.5      to the left,  improve=0.02044368, (0 missing)
##       description_length < 3010.5   to the left,  improve=0.01743299, (0 missing)
##       reward_length      < 7085     to the right, improve=0.01575401, (0 missing)
##   Surrogate splits:
##       reward_length      < 6627     to the right, agree=0.583, adj=0.114, (0 split)
##       mo_launched        splits as  RRLLRR-LRRR-, agree=0.578, adj=0.102, (0 split)
##       campaign_duration  < 29.83    to the left,  agree=0.561, adj=0.068, (0 split)
##       description_length < 5316     to the right, agree=0.559, adj=0.063, (0 split)
##       usa                < 0.5      to the left,  agree=0.540, adj=0.023, (0 split)
## 
## Node number 12146: 584 observations,    complexity param=0.0001577645
##   mean=0.7106164, MSE=0.2056407 
##   left son=24292 (264 obs) right son=24293 (320 obs)
##   Primary splits:
##       reward_length      < 11672    to the right, improve=0.017836000, (0 missing)
##       goal               < 7650     to the right, improve=0.008971040, (0 missing)
##       category           splits as  ------R---L----, improve=0.005269081, (0 missing)
##       description_length < 6511     to the right, improve=0.003814194, (0 missing)
##       usa                < 0.5      to the left,  improve=0.003155900, (0 missing)
##   Surrogate splits:
##       goal               < 8650     to the right, agree=0.596, adj=0.106, (0 split)
##       description_length < 5147.5   to the right, agree=0.596, adj=0.106, (0 split)
##       category           splits as  ------R---L----, agree=0.568, adj=0.045, (0 split)
##       social_media_count splits as  RRRL, agree=0.567, adj=0.042, (0 split)
##       usa                < 0.5      to the left,  agree=0.553, adj=0.011, (0 split)
## 
## Node number 12147: 511 observations
##   mean=0.7690802, MSE=0.1775958 
## 
## Node number 12150: 85 observations
##   mean=0.7529412, MSE=0.1860208 
## 
## Node number 12151: 145 observations,    complexity param=0.0001472365
##   mean=0.9103448, MSE=0.08161712 
##   left son=24302 (45 obs) right son=24303 (100 obs)
##   Primary splits:
##       category           splits as  ------R---L----, improve=0.09689523, (0 missing)
##       campaign_duration  < 10.115   to the left,  improve=0.02388976, (0 missing)
##       reward_length      < 18359.5  to the right, improve=0.01839493, (0 missing)
##       mo_launched        splits as  LRL--R-L-LLL, improve=0.01745686, (0 missing)
##       description_length < 4045.5   to the left,  improve=0.01691229, (0 missing)
##   Surrogate splits:
##       social_media_count splits as  RRLL,         agree=0.724, adj=0.111, (0 split)
##       reward_length      < 17550.5  to the right, agree=0.724, adj=0.111, (0 split)
##       description_length < 1967     to the left,  agree=0.710, adj=0.067, (0 split)
## 
## Node number 12152: 29 observations
##   mean=0.4827586, MSE=0.2497027 
## 
## Node number 12153: 60 observations,    complexity param=0.0001377486
##   mean=0.7333333, MSE=0.1955556 
##   left son=24306 (36 obs) right son=24307 (24 obs)
##   Primary splits:
##       reward_length      < 10142    to the left,  improve=0.11458330, (0 missing)
##       description_length < 3175     to the left,  improve=0.07928001, (0 missing)
##       goal               < 8250     to the right, improve=0.05440148, (0 missing)
##       campaign_duration  < 31.4     to the right, improve=0.05026642, (0 missing)
##       mo_launched        splits as  --LR-L------, improve=0.02385658, (0 missing)
##   Surrogate splits:
##       social_media_count splits as  -LRR,         agree=0.683, adj=0.208, (0 split)
##       goal               < 4750     to the right, agree=0.633, adj=0.083, (0 split)
##       campaign_duration  < 30.75    to the right, agree=0.617, adj=0.042, (0 split)
##       description_length < 3297     to the left,  agree=0.617, adj=0.042, (0 split)
## 
## Node number 12154: 36 observations
##   mean=0.6666667, MSE=0.2222222 
## 
## Node number 12155: 119 observations
##   mean=0.8739496, MSE=0.1101617 
## 
## Node number 12156: 14 observations
##   mean=0.4285714, MSE=0.244898 
## 
## Node number 12157: 8 observations
##   mean=1, MSE=0 
## 
## Node number 12372: 17 observations
##   mean=0, MSE=0 
## 
## Node number 12373: 154 observations,    complexity param=0.000116584
##   mean=0.1948052, MSE=0.1568561 
##   left son=24746 (34 obs) right son=24747 (120 obs)
##   Primary splits:
##       campaign_duration  < 21.42    to the left,  improve=0.02051471, (0 missing)
##       description_length < 861.5    to the left,  improve=0.01995225, (0 missing)
##       category           splits as  --------L---LR-, improve=0.01864098, (0 missing)
##       reward_length      < 2821     to the right, improve=0.01587905, (0 missing)
##       mo_launched        splits as  RL-LL-L--LLL, improve=0.01023892, (0 missing)
##   Surrogate splits:
##       mo_launched   splits as  RR-RR-R--LRR, agree=0.799, adj=0.088, (0 split)
##       reward_length < 3929.5   to the right, agree=0.792, adj=0.059, (0 split)
## 
## Node number 12374: 24 observations
##   mean=0.2083333, MSE=0.1649306 
## 
## Node number 12375: 9 observations
##   mean=0.6666667, MSE=0.2222222 
## 
## Node number 12396: 62 observations,    complexity param=0.0001169741
##   mean=0.2580645, MSE=0.1914672 
##   left son=24792 (44 obs) right son=24793 (18 obs)
##   Primary splits:
##       reward_length      < 2562.5   to the left,  improve=0.12506180, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.07617754, (0 missing)
##       goal               < 1550     to the left,  improve=0.06552001, (0 missing)
##       description_length < 846      to the left,  improve=0.04426877, (0 missing)
##       mo_launched        splits as  --R--L-RR---, improve=0.03216564, (0 missing)
##   Surrogate splits:
##       goal               < 2150     to the left,  agree=0.742, adj=0.111, (0 split)
##       description_length < 1681     to the left,  agree=0.726, adj=0.056, (0 split)
## 
## Node number 12397: 27 observations,    complexity param=0.0001169741
##   mean=0.4444444, MSE=0.2469136 
##   left son=24794 (11 obs) right son=24795 (16 obs)
##   Primary splits:
##       description_length < 575.5    to the left,  improve=0.192045500, (0 missing)
##       reward_length      < 2260     to the right, improve=0.174013200, (0 missing)
##       video_status       < 0.5      to the right, improve=0.040000000, (0 missing)
##       mo_launched        splits as  --R--L-RR---, improve=0.025000000, (0 missing)
##       campaign_duration  < 35.65    to the left,  improve=0.007352941, (0 missing)
##   Surrogate splits:
##       reward_length     < 1154     to the left,  agree=0.667, adj=0.182, (0 split)
##       campaign_duration < 30.65    to the right, agree=0.630, adj=0.091, (0 split)
## 
## Node number 12442: 41 observations
##   mean=0.3658537, MSE=0.2320048 
## 
## Node number 12443: 7 observations
##   mean=0.8571429, MSE=0.122449 
## 
## Node number 12592: 28 observations
##   mean=0.03571429, MSE=0.03443878 
## 
## Node number 12593: 30 observations,    complexity param=0.0001095044
##   mean=0.3333333, MSE=0.2222222 
##   left son=25186 (20 obs) right son=25187 (10 obs)
##   Primary splits:
##       mo_launched        splits as  -LLL--RRRLLL, improve=0.16000000, (0 missing)
##       goal               < 2400     to the right, improve=0.07763975, (0 missing)
##       description_length < 714.5    to the left,  improve=0.04000000, (0 missing)
##       reward_length      < 2954.5   to the right, improve=0.03827751, (0 missing)
##       campaign_duration  < 18.585   to the right, improve=0.02380952, (0 missing)
##   Surrogate splits:
##       goal               < 2150     to the right, agree=0.7, adj=0.1, (0 split)
##       description_length < 1003.5   to the left,  agree=0.7, adj=0.1, (0 split)
##       reward_length      < 2954.5   to the right, agree=0.7, adj=0.1, (0 split)
## 
## Node number 12594: 142 observations,    complexity param=0.0001352428
##   mean=0.2676056, MSE=0.1959929 
##   left son=25188 (51 obs) right son=25189 (91 obs)
##   Primary splits:
##       reward_length      < 2577.5   to the right, improve=0.03506875, (0 missing)
##       social_media_count splits as  RRLR, improve=0.03372781, (0 missing)
##       goal               < 3800     to the right, improve=0.01869542, (0 missing)
##       category           splits as  R---R-----L----, improve=0.01798998, (0 missing)
##       description_length < 949.5    to the left,  improve=0.01573318, (0 missing)
##   Surrogate splits:
##       description_length < 1038     to the right, agree=0.669, adj=0.078, (0 split)
##       social_media_count splits as  RRLR,         agree=0.655, adj=0.039, (0 split)
##       campaign_duration  < 60.02    to the right, agree=0.648, adj=0.020, (0 split)
##       mo_launched        splits as  -RRR--RRLRRR, agree=0.648, adj=0.020, (0 split)
##       goal               < 1950     to the left,  agree=0.648, adj=0.020, (0 split)
## 
## Node number 12595: 126 observations,    complexity param=0.0001339936
##   mean=0.4206349, MSE=0.2437012 
##   left son=25190 (110 obs) right son=25191 (16 obs)
##   Primary splits:
##       reward_length      < 3130     to the right, improve=0.04250629, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.02872935, (0 missing)
##       campaign_duration  < 30.02    to the right, improve=0.02665424, (0 missing)
##       description_length < 1029.5   to the left,  improve=0.01760145, (0 missing)
##       mo_launched        splits as  -RLR--LRRLRL, improve=0.01456018, (0 missing)
##   Surrogate splits:
##       description_length < 1235.5   to the left,  agree=0.881, adj=0.062, (0 split)
## 
## Node number 12598: 17 observations
##   mean=0.2941176, MSE=0.2076125 
## 
## Node number 12599: 48 observations
##   mean=0.6041667, MSE=0.2391493 
## 
## Node number 12628: 11 observations
##   mean=0, MSE=0 
## 
## Node number 12629: 14 observations
##   mean=0.5, MSE=0.25 
## 
## Node number 12632: 23 observations
##   mean=0.2173913, MSE=0.1701323 
## 
## Node number 12633: 11 observations
##   mean=0.6363636, MSE=0.231405 
## 
## Node number 12648: 28 observations,    complexity param=0.0001192192
##   mean=0.1785714, MSE=0.1466837 
##   left son=25296 (16 obs) right son=25297 (12 obs)
##   Primary splits:
##       mo_launched        splits as  L----R-L-R--, improve=0.28985510, (0 missing)
##       campaign_duration  < 30.02    to the left,  improve=0.07246377, (0 missing)
##       description_length < 1078     to the right, improve=0.06104794, (0 missing)
##       video_status       < 0.5      to the right, improve=0.05584541, (0 missing)
##       reward_length      < 2205     to the right, improve=0.04637681, (0 missing)
##   Surrogate splits:
##       goal               < 1450     to the left,  agree=0.679, adj=0.250, (0 split)
##       description_length < 1138.5   to the left,  agree=0.679, adj=0.250, (0 split)
##       video_status       < 0.5      to the right, agree=0.643, adj=0.167, (0 split)
##       reward_length      < 1866     to the left,  agree=0.643, adj=0.167, (0 split)
##       campaign_duration  < 30.02    to the left,  agree=0.607, adj=0.083, (0 split)
## 
## Node number 12649: 52 observations,    complexity param=0.0001192192
##   mean=0.4230769, MSE=0.2440828 
##   left son=25298 (21 obs) right son=25299 (31 obs)
##   Primary splits:
##       goal               < 1150     to the right, improve=0.09496811, (0 missing)
##       description_length < 646.5    to the left,  improve=0.06397904, (0 missing)
##       mo_launched        splits as  R----L-R-L--, improve=0.05454545, (0 missing)
##       reward_length      < 2919     to the left,  improve=0.03156566, (0 missing)
##       campaign_duration  < 59.98    to the left,  improve=0.03053391, (0 missing)
##   Surrogate splits:
##       description_length < 772.5    to the left,  agree=0.750, adj=0.381, (0 split)
##       campaign_duration  < 35.115   to the left,  agree=0.635, adj=0.095, (0 split)
##       social_media_count splits as  RLR-,         agree=0.615, adj=0.048, (0 split)
## 
## Node number 12650: 7 observations
##   mean=0.1428571, MSE=0.122449 
## 
## Node number 12651: 111 observations,    complexity param=0.0001472286
##   mean=0.5315315, MSE=0.2490058 
##   left son=25302 (24 obs) right son=25303 (87 obs)
##   Primary splits:
##       reward_length      < 1592.5   to the left,  improve=0.04351931, (0 missing)
##       campaign_duration  < 50.295   to the right, improve=0.02798335, (0 missing)
##       category           splits as  R---R-----L----, improve=0.02716210, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.01503985, (0 missing)
##       social_media_count splits as  RLLL, improve=0.01438337, (0 missing)
## 
## Node number 12692: 12 observations
##   mean=0, MSE=0 
## 
## Node number 12693: 11 observations
##   mean=0.4545455, MSE=0.2479339 
## 
## Node number 12694: 40 observations,    complexity param=0.0001196282
##   mean=0.375, MSE=0.234375 
##   left son=25388 (17 obs) right son=25389 (23 obs)
##   Primary splits:
##       video_status       < 0.5      to the left,  improve=0.12429670, (0 missing)
##       campaign_duration  < 29.98    to the right, improve=0.07936508, (0 missing)
##       description_length < 1689     to the left,  improve=0.07840000, (0 missing)
##       goal               < 2361.11  to the right, improve=0.06039707, (0 missing)
##       mo_launched        splits as  -R-----L-RRL, improve=0.04444444, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 33.47    to the right, agree=0.675, adj=0.235, (0 split)
##       mo_launched        splits as  -R-----L-RRR, agree=0.675, adj=0.235, (0 split)
##       description_length < 2817.5   to the right, agree=0.650, adj=0.176, (0 split)
##       reward_length      < 921.5    to the left,  agree=0.650, adj=0.176, (0 split)
##       usa                < 0.5      to the left,  agree=0.625, adj=0.118, (0 split)
## 
## Node number 12695: 13 observations
##   mean=0.7692308, MSE=0.1775148 
## 
## Node number 12696: 56 observations
##   mean=0.3035714, MSE=0.2114158 
## 
## Node number 12697: 55 observations,    complexity param=0.0001765153
##   mean=0.5272727, MSE=0.2492562 
##   left son=25394 (45 obs) right son=25395 (10 obs)
##   Primary splits:
##       goal               < 2750     to the left,  improve=0.19923370, (0 missing)
##       reward_length      < 1753.5   to the right, improve=0.11372680, (0 missing)
##       campaign_duration  < 60.45    to the right, improve=0.07304361, (0 missing)
##       description_length < 2321.5   to the right, improve=0.07304361, (0 missing)
##       category           splits as  L---R-----R----, improve=0.03905079, (0 missing)
## 
## Node number 12698: 14 observations
##   mean=0.4285714, MSE=0.244898 
## 
## Node number 12699: 11 observations
##   mean=0.9090909, MSE=0.08264463 
## 
## Node number 12702: 8 observations
##   mean=0.5, MSE=0.25 
## 
## Node number 12703: 24 observations
##   mean=0.9166667, MSE=0.07638889 
## 
## Node number 12772: 20 observations
##   mean=0.3, MSE=0.21 
## 
## Node number 12773: 54 observations,    complexity param=0.0001003836
##   mean=0.5925926, MSE=0.2414266 
##   left son=25546 (7 obs) right son=25547 (47 obs)
##   Primary splits:
##       campaign_duration  < 14.5     to the left,  improve=0.05809616, (0 missing)
##       social_media_count splits as  RLRL,         improve=0.05554488, (0 missing)
##       reward_length      < 2808     to the right, improve=0.05406859, (0 missing)
##       goal               < 1600     to the right, improve=0.04097732, (0 missing)
##       description_length < 2028.5   to the left,  improve=0.02728056, (0 missing)
## 
## Node number 12776: 10 observations
##   mean=0.2, MSE=0.16 
## 
## Node number 12777: 58 observations,    complexity param=0.0001191837
##   mean=0.6034483, MSE=0.2392985 
##   left son=25554 (16 obs) right son=25555 (42 obs)
##   Primary splits:
##       description_length < 1864.5   to the left,  improve=0.08308193, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.05781175, (0 missing)
##       mo_launched        splits as  -R--RL-R--L-, improve=0.05662212, (0 missing)
##       campaign_duration  < 45.065   to the left,  improve=0.04930435, (0 missing)
##       reward_length      < 3991     to the left,  improve=0.03363354, (0 missing)
## 
## Node number 12788: 13 observations
##   mean=0.3076923, MSE=0.2130178 
## 
## Node number 12789: 207 observations,    complexity param=0.0001336597
##   mean=0.6859903, MSE=0.2154076 
##   left son=25578 (35 obs) right son=25579 (172 obs)
##   Primary splits:
##       description_length < 1464     to the left,  improve=0.02785111, (0 missing)
##       reward_length      < 3102     to the right, improve=0.01758650, (0 missing)
##       mo_launched        splits as  R-RR--L-RR-R, improve=0.01601086, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.01276297, (0 missing)
##       campaign_duration  < 31.12    to the left,  improve=0.01117465, (0 missing)
## 
## Node number 12790: 55 observations,    complexity param=0.0001336597
##   mean=0.7272727, MSE=0.1983471 
##   left son=25580 (13 obs) right son=25581 (42 obs)
##   Primary splits:
##       description_length < 1889     to the left,  improve=0.18322650, (0 missing)
##       video_status       < 0.5      to the right, improve=0.05046835, (0 missing)
##       mo_launched        splits as  L-RR--R-LL-R, improve=0.04181185, (0 missing)
##       reward_length      < 3339     to the left,  improve=0.03200000, (0 missing)
##       campaign_duration  < 15.935   to the right, improve=0.02576490, (0 missing)
##   Surrogate splits:
##       campaign_duration < 9.145    to the left,  agree=0.800, adj=0.154, (0 split)
##       reward_length     < 3955.5   to the right, agree=0.782, adj=0.077, (0 split)
## 
## Node number 12791: 28 observations
##   mean=0.9285714, MSE=0.06632653 
## 
## Node number 12848: 10 observations
##   mean=0.1, MSE=0.09 
## 
## Node number 12849: 55 observations,    complexity param=0.0001040375
##   mean=0.4, MSE=0.24 
##   left son=25698 (20 obs) right son=25699 (35 obs)
##   Primary splits:
##       description_length < 449      to the left,  improve=0.05357143, (0 missing)
##       campaign_duration  < 58.07    to the right, improve=0.04017857, (0 missing)
##       reward_length      < 757.5    to the left,  improve=0.04017857, (0 missing)
##       goal               < 475      to the left,  improve=0.03183024, (0 missing)
##       category           splits as  L---L---L-L-RR-, improve=0.01709402, (0 missing)
##   Surrogate splits:
##       reward_length      < 757.5    to the left,  agree=0.727, adj=0.25, (0 split)
##       social_media_count splits as  RLR-, agree=0.691, adj=0.15, (0 split)
##       category           splits as  R---L---L-R-RR-, agree=0.673, adj=0.10, (0 split)
##       mo_launched        splits as  ----L-RRR--R, agree=0.655, adj=0.05, (0 split)
##       goal               < 550      to the right, agree=0.655, adj=0.05, (0 split)
## 
## Node number 12912: 9 observations
##   mean=0.1111111, MSE=0.09876543 
## 
## Node number 12913: 130 observations,    complexity param=0.0001369433
##   mean=0.5, MSE=0.25 
##   left son=25826 (97 obs) right son=25827 (33 obs)
##   Primary splits:
##       mo_launched        splits as  LLRRLLLRLLLL, improve=0.03780069, (0 missing)
##       description_length < 493      to the left,  improve=0.03085714, (0 missing)
##       campaign_duration  < 29.885   to the left,  improve=0.02295684, (0 missing)
##       goal               < 210      to the left,  improve=0.01636364, (0 missing)
##       social_media_count splits as  LRR-,         improve=0.01473684, (0 missing)
##   Surrogate splits:
##       social_media_count splits as  LLR-,         agree=0.762, adj=0.061, (0 split)
##       goal               < 20       to the right, agree=0.762, adj=0.061, (0 split)
## 
## Node number 13008: 7 observations
##   mean=0, MSE=0 
## 
## Node number 13009: 14 observations
##   mean=0.5, MSE=0.25 
## 
## Node number 13010: 20 observations,    complexity param=0.0001127505
##   mean=0.45, MSE=0.2475 
##   left son=26020 (12 obs) right son=26021 (8 obs)
##   Primary splits:
##       category           splits as  ----R---R-L----, improve=0.24242420, (0 missing)
##       reward_length      < 3561.5   to the right, improve=0.17151310, (0 missing)
##       mo_launched        splits as  LRL--L----R-, improve=0.15195920, (0 missing)
##       goal               < 550      to the right, improve=0.10774410, (0 missing)
##       description_length < 2304.5   to the left,  improve=0.08249158, (0 missing)
##   Surrogate splits:
##       description_length < 2481     to the left,  agree=0.75, adj=0.375, (0 split)
##       campaign_duration  < 29.98    to the right, agree=0.65, adj=0.125, (0 split)
##       social_media_count splits as  RLL-,         agree=0.65, adj=0.125, (0 split)
##       mo_launched        splits as  RLL--L----L-, agree=0.65, adj=0.125, (0 split)
##       reward_length      < 3462.5   to the left,  agree=0.65, adj=0.125, (0 split)
## 
## Node number 13011: 21 observations
##   mean=0.7619048, MSE=0.1814059 
## 
## Node number 13016: 22 observations,    complexity param=0.0001179065
##   mean=0.5454545, MSE=0.2479339 
##   left son=26032 (8 obs) right son=26033 (14 obs)
##   Primary splits:
##       campaign_duration  < 30.02    to the left,  improve=0.40744050, (0 missing)
##       goal               < 763.5    to the left,  improve=0.21777780, (0 missing)
##       description_length < 1888     to the right, improve=0.13333330, (0 missing)
##       mo_launched        splits as  ---R--LRLR-L, improve=0.13333330, (0 missing)
##       reward_length      < 3235     to the right, improve=0.08027778, (0 missing)
##   Surrogate splits:
##       description_length < 2720     to the right, agree=0.727, adj=0.250, (0 split)
##       reward_length      < 3413.5   to the right, agree=0.682, adj=0.125, (0 split)
## 
## Node number 13017: 41 observations
##   mean=0.7804878, MSE=0.1713266 
## 
## Node number 14536: 22 observations
##   mean=0.04545455, MSE=0.04338843 
## 
## Node number 14537: 14 observations
##   mean=0.4285714, MSE=0.244898 
## 
## Node number 14540: 168 observations,    complexity param=0.0001220582
##   mean=0.422619, MSE=0.2440122 
##   left son=29080 (8 obs) right son=29081 (160 obs)
##   Primary splits:
##       campaign_duration  < 44.035   to the right, improve=0.036597940, (0 missing)
##       description_length < 1635     to the left,  improve=0.013578600, (0 missing)
##       reward_length      < 4364     to the left,  improve=0.013288180, (0 missing)
##       goal               < 2550     to the right, improve=0.011278460, (0 missing)
##       usa                < 0.5      to the left,  improve=0.006105706, (0 missing)
## 
## Node number 14541: 13 observations
##   mean=0.6923077, MSE=0.2130178 
## 
## Node number 14542: 89 observations,    complexity param=0.0001264738
##   mean=0.5730337, MSE=0.2446661 
##   left son=29084 (39 obs) right son=29085 (50 obs)
##   Primary splits:
##       description_length < 1335.5   to the left,  improve=0.03963086, (0 missing)
##       campaign_duration  < 30.02    to the left,  improve=0.03448433, (0 missing)
##       reward_length      < 4709.5   to the right, improve=0.02762596, (0 missing)
##       goal               < 1675     to the right, improve=0.02306275, (0 missing)
##       social_media_count splits as  RLL-,         improve=0.01592216, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  LR-R---R--L-, agree=0.674, adj=0.256, (0 split)
##       reward_length      < 6244     to the right, agree=0.629, adj=0.154, (0 split)
##       campaign_duration  < 37.075   to the right, agree=0.584, adj=0.051, (0 split)
##       social_media_count splits as  RLR-,         agree=0.584, adj=0.051, (0 split)
## 
## Node number 14543: 8 observations
##   mean=1, MSE=0 
## 
## Node number 14572: 8 observations
##   mean=0.25, MSE=0.1875 
## 
## Node number 14573: 76 observations
##   mean=0.6184211, MSE=0.2359765 
## 
## Node number 14580: 59 observations,    complexity param=0.0001348783
##   mean=0.4915254, MSE=0.2499282 
##   left son=29160 (51 obs) right son=29161 (8 obs)
##   Primary splits:
##       description_length < 1847.5   to the left,  improve=0.092294910, (0 missing)
##       reward_length      < 4881     to the right, improve=0.080255740, (0 missing)
##       mo_launched        splits as  -LRLRRR-RR--, improve=0.043895860, (0 missing)
##       goal               < 3100     to the left,  improve=0.019235460, (0 missing)
##       campaign_duration  < 21.46    to the right, improve=0.009608257, (0 missing)
## 
## Node number 14581: 9 observations
##   mean=0.8888889, MSE=0.09876543 
## 
## Node number 14582: 32 observations,    complexity param=0.0001154929
##   mean=0.5625, MSE=0.2460938 
##   left son=29164 (16 obs) right son=29165 (16 obs)
##   Primary splits:
##       mo_launched        splits as  -RRLLLL-RL--, improve=0.14285710, (0 missing)
##       goal               < 3992.5   to the left,  improve=0.11882270, (0 missing)
##       reward_length      < 6049.5   to the right, improve=0.10418470, (0 missing)
##       social_media_count splits as  RLR-,         improve=0.08716553, (0 missing)
##       description_length < 1212     to the right, improve=0.07369067, (0 missing)
##   Surrogate splits:
##       description_length < 1212     to the right, agree=0.656, adj=0.312, (0 split)
##       campaign_duration  < 27.65    to the left,  agree=0.625, adj=0.250, (0 split)
##       reward_length      < 5714     to the right, agree=0.625, adj=0.250, (0 split)
##       goal               < 3525     to the left,  agree=0.594, adj=0.188, (0 split)
##       social_media_count splits as  RLL-,         agree=0.562, adj=0.125, (0 split)
## 
## Node number 14583: 104 observations,    complexity param=0.0001221524
##   mean=0.75, MSE=0.1875 
##   left son=29166 (73 obs) right son=29167 (31 obs)
##   Primary splits:
##       campaign_duration  < 28.975   to the right, improve=0.07792016, (0 missing)
##       description_length < 1343.5   to the left,  improve=0.03025413, (0 missing)
##       mo_launched        splits as  -LLLRLL-LL--, improve=0.02852321, (0 missing)
##       reward_length      < 10415    to the right, improve=0.02314018, (0 missing)
##       goal               < 2740     to the left,  improve=0.01847746, (0 missing)
##   Surrogate splits:
##       reward_length      < 5787     to the right, agree=0.731, adj=0.097, (0 split)
##       description_length < 2020.5   to the left,  agree=0.712, adj=0.032, (0 split)
## 
## Node number 14616: 50 observations,    complexity param=0.0001267122
##   mean=0.36, MSE=0.2304 
##   left son=29232 (8 obs) right son=29233 (42 obs)
##   Primary splits:
##       category           splits as  R-------L---R--, improve=0.10714290, (0 missing)
##       goal               < 682.5    to the left,  improve=0.10714290, (0 missing)
##       description_length < 1739     to the left,  improve=0.06250000, (0 missing)
##       campaign_duration  < 59.98    to the left,  improve=0.05805638, (0 missing)
##       mo_launched        splits as  L-L--RR-R-R-, improve=0.04761905, (0 missing)
##   Surrogate splits:
##       reward_length < 4228.5   to the left,  agree=0.88, adj=0.25, (0 split)
## 
## Node number 14617: 20 observations,    complexity param=0.0001293859
##   mean=0.65, MSE=0.2275 
##   left son=29234 (13 obs) right son=29235 (7 obs)
##   Primary splits:
##       description_length < 1536.5   to the right, improve=0.28994080, (0 missing)
##       mo_launched        splits as  L-R--RR-R-L-, improve=0.11604880, (0 missing)
##       reward_length      < 5415.5   to the left,  improve=0.11604880, (0 missing)
##       category           splits as  L-------L---R--, improve=0.10155780, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.01461176, (0 missing)
##   Surrogate splits:
##       mo_launched splits as  L-R--LL-L-L-, agree=0.7, adj=0.143, (0 split)
##       category    splits as  L-------L---R--, agree=0.7, adj=0.143, (0 split)
## 
## Node number 14874: 34 observations,    complexity param=0.0001004038
##   mean=0.3235294, MSE=0.2188581 
##   left son=29748 (19 obs) right son=29749 (15 obs)
##   Primary splits:
##       description_length < 3123     to the right, improve=0.15878230, (0 missing)
##       campaign_duration  < 45.235   to the left,  improve=0.07279838, (0 missing)
##       reward_length      < 4452     to the right, improve=0.06132471, (0 missing)
##       goal               < 3625     to the right, improve=0.05541198, (0 missing)
##       mo_launched        splits as  -L---LLR--R-, improve=0.05387366, (0 missing)
##   Surrogate splits:
##       campaign_duration < 45.235   to the left,  agree=0.706, adj=0.333, (0 split)
##       mo_launched       splits as  -R---LLR--L-, agree=0.647, adj=0.200, (0 split)
##       reward_length     < 4185.5   to the right, agree=0.647, adj=0.200, (0 split)
##       goal              < 3250     to the left,  agree=0.588, adj=0.067, (0 split)
## 
## Node number 14875: 19 observations
##   mean=0.5789474, MSE=0.2437673 
## 
## Node number 14878: 51 observations,    complexity param=0.0001184171
##   mean=0.5294118, MSE=0.2491349 
##   left son=29756 (37 obs) right son=29757 (14 obs)
##   Primary splits:
##       reward_length      < 4217     to the right, improve=0.099769410, (0 missing)
##       campaign_duration  < 23       to the left,  improve=0.037923880, (0 missing)
##       goal               < 1550     to the right, improve=0.037656810, (0 missing)
##       description_length < 2555     to the right, improve=0.027777780, (0 missing)
##       mo_launched        splits as  R-RLL---LR-L, improve=0.004960317, (0 missing)
## 
## Node number 14879: 13 observations
##   mean=0.8461538, MSE=0.1301775 
## 
## Node number 14892: 28 observations
##   mean=0.3214286, MSE=0.2181122 
## 
## Node number 14893: 61 observations,    complexity param=0.0001178388
##   mean=0.5245902, MSE=0.2493953 
##   left son=29786 (38 obs) right son=29787 (23 obs)
##   Primary splits:
##       description_length < 3198     to the right, improve=0.111705200, (0 missing)
##       reward_length      < 5709     to the left,  improve=0.055915170, (0 missing)
##       goal               < 3950     to the left,  improve=0.014008620, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.011437440, (0 missing)
##       campaign_duration  < 42.16    to the left,  improve=0.008952255, (0 missing)
##   Surrogate splits:
##       reward_length     < 6005.5   to the left,  agree=0.656, adj=0.087, (0 split)
##       campaign_duration < 18.635   to the right, agree=0.639, adj=0.043, (0 split)
## 
## Node number 14904: 14 observations
##   mean=0.1428571, MSE=0.122449 
## 
## Node number 14905: 8 observations
##   mean=0.625, MSE=0.234375 
## 
## Node number 15112: 7 observations
##   mean=0.1428571, MSE=0.122449 
## 
## Node number 15113: 395 observations,    complexity param=0.0001737559
##   mean=0.564557, MSE=0.2458324 
##   left son=30226 (375 obs) right son=30227 (20 obs)
##   Primary splits:
##       reward_length      < 6467     to the right, improve=0.012026280, (0 missing)
##       campaign_duration  < 43.935   to the right, improve=0.011672120, (0 missing)
##       mo_launched        splits as  RRRRLRLRLRRL, improve=0.011661100, (0 missing)
##       category           splits as  R-------L---L--, improve=0.010597610, (0 missing)
##       description_length < 2755     to the right, improve=0.009058445, (0 missing)
## 
## Node number 15128: 9 observations
##   mean=0.1111111, MSE=0.09876543 
## 
## Node number 15129: 35 observations
##   mean=0.6285714, MSE=0.2334694 
## 
## Node number 15132: 13 observations
##   mean=0.3076923, MSE=0.2130178 
## 
## Node number 15133: 40 observations
##   mean=0.8, MSE=0.16 
## 
## Node number 15192: 169 observations,    complexity param=0.0001648558
##   mean=0.6272189, MSE=0.2338153 
##   left son=30384 (148 obs) right son=30385 (21 obs)
##   Primary splits:
##       reward_length     < 6757     to the right, improve=0.04674606, (0 missing)
##       goal              < 1225     to the right, improve=0.02880094, (0 missing)
##       mo_launched       splits as  -LLLRLLRLR--, improve=0.01643591, (0 missing)
##       video_status      < 0.5      to the left,  improve=0.01424734, (0 missing)
##       campaign_duration < 14.5     to the right, improve=0.01388754, (0 missing)
## 
## Node number 15193: 21 observations
##   mean=0.952381, MSE=0.04535147 
## 
## Node number 15196: 37 observations
##   mean=0.5675676, MSE=0.2454346 
## 
## Node number 15197: 70 observations
##   mean=0.8285714, MSE=0.1420408 
## 
## Node number 15198: 22 observations,    complexity param=0.0001006552
##   mean=0.6818182, MSE=0.2169421 
##   left son=30396 (15 obs) right son=30397 (7 obs)
##   Primary splits:
##       description_length < 4378.5   to the left,  improve=0.21777780, (0 missing)
##       campaign_duration  < 15.795   to the right, improve=0.13683350, (0 missing)
##       mo_launched        splits as  --RRRLRLLR--, improve=0.13683350, (0 missing)
##       reward_length      < 8021.5   to the right, improve=0.09829932, (0 missing)
##       goal               < 1950     to the left,  improve=0.09829932, (0 missing)
##   Surrogate splits:
##       goal              < 1950     to the left,  agree=0.773, adj=0.286, (0 split)
##       campaign_duration < 18.165   to the left,  agree=0.727, adj=0.143, (0 split)
## 
## Node number 15199: 107 observations
##   mean=0.9065421, MSE=0.08472356 
## 
## Node number 15460: 10 observations
##   mean=0.1, MSE=0.09 
## 
## Node number 15461: 11 observations
##   mean=0.6363636, MSE=0.231405 
## 
## Node number 15462: 108 observations,    complexity param=0.0001127396
##   mean=0.5648148, MSE=0.245799 
##   left son=30924 (74 obs) right son=30925 (34 obs)
##   Primary splits:
##       campaign_duration  < 29.715   to the right, improve=0.03719814, (0 missing)
##       description_length < 874.5    to the right, improve=0.02409558, (0 missing)
##       mo_launched        splits as  ---RLRR-LL-L, improve=0.01709104, (0 missing)
##       category           splits as  ----R-----L--L-, improve=0.01353734, (0 missing)
##       reward_length      < 5642.5   to the left,  improve=0.00867258, (0 missing)
##   Surrogate splits:
##       reward_length < 4075     to the right, agree=0.704, adj=0.059, (0 split)
## 
## Node number 15463: 13 observations
##   mean=0.8461538, MSE=0.1301775 
## 
## Node number 15556: 11 observations
##   mean=0.09090909, MSE=0.08264463 
## 
## Node number 15557: 11 observations
##   mean=0.7272727, MSE=0.1983471 
## 
## Node number 15558: 22 observations,    complexity param=0.0001347957
##   mean=0.5, MSE=0.25 
##   left son=31116 (14 obs) right son=31117 (8 obs)
##   Primary splits:
##       mo_launched        splits as  -LLRLLRR-L--, improve=0.32142860, (0 missing)
##       description_length < 2193.5   to the right, improve=0.13333330, (0 missing)
##       reward_length      < 6938     to the left,  improve=0.08571429, (0 missing)
##       goal               < 1100     to the right, improve=0.07692308, (0 missing)
##       campaign_duration  < 16.42    to the left,  improve=0.03571429, (0 missing)
##   Surrogate splits:
##       description_length < 2720     to the left,  agree=0.773, adj=0.375, (0 split)
##       reward_length      < 9400     to the left,  agree=0.773, adj=0.375, (0 split)
##       social_media_count splits as  LLRL, agree=0.727, adj=0.250, (0 split)
##       usa                < 0.5      to the right, agree=0.682, adj=0.125, (0 split)
##       category           splits as  ----R-----L----, agree=0.682, adj=0.125, (0 split)
## 
## Node number 15559: 97 observations,    complexity param=0.0001347957
##   mean=0.7113402, MSE=0.2053353 
##   left son=31118 (80 obs) right son=31119 (17 obs)
##   Primary splits:
##       reward_length      < 7067.5   to the right, improve=0.08623188, (0 missing)
##       description_length < 2096     to the left,  improve=0.05354563, (0 missing)
##       goal               < 819      to the left,  improve=0.04732457, (0 missing)
##       mo_launched        splits as  -LRLLLLR-L--, improve=0.02432074, (0 missing)
##       campaign_duration  < 46.405   to the left,  improve=0.01570114, (0 missing)
##   Surrogate splits:
##       mo_launched splits as  -LLLLLLR-L--, agree=0.845, adj=0.118, (0 split)
## 
## Node number 15990: 14 observations
##   mean=0.5, MSE=0.25 
## 
## Node number 15991: 33 observations
##   mean=0.8787879, MSE=0.1065197 
## 
## Node number 15994: 108 observations,    complexity param=0.0001304682
##   mean=0.6944444, MSE=0.2121914 
##   left son=31988 (18 obs) right son=31989 (90 obs)
##   Primary splits:
##       campaign_duration  < 44.98    to the left,  improve=0.08800000, (0 missing)
##       description_length < 1067     to the left,  improve=0.03520000, (0 missing)
##       reward_length      < 10636    to the left,  improve=0.02031911, (0 missing)
##       goal               < 949.5    to the right, improve=0.01619835, (0 missing)
##       mo_launched        splits as  L-RR-----L-R, improve=0.01380257, (0 missing)
## 
## Node number 15995: 22 observations
##   mean=0.9090909, MSE=0.08264463 
## 
## Node number 16000: 9 observations
##   mean=0, MSE=0 
## 
## Node number 16001: 34 observations,    complexity param=0.0001368939
##   mean=0.4411765, MSE=0.2465398 
##   left son=32002 (9 obs) right son=32003 (25 obs)
##   Primary splits:
##       social_media_count splits as  RLR-,         improve=0.15907990, (0 missing)
##       goal               < 2475     to the right, improve=0.11116250, (0 missing)
##       description_length < 544.5    to the left,  improve=0.04263158, (0 missing)
##       reward_length      < 4478.5   to the left,  improve=0.03368421, (0 missing)
##       mo_launched        splits as  -R-----L--L-, improve=0.02109424, (0 missing)
##   Surrogate splits:
##       campaign_duration < 12.5     to the left,  agree=0.794, adj=0.222, (0 split)
##       reward_length     < 4280.5   to the left,  agree=0.765, adj=0.111, (0 split)
## 
## Node number 16010: 187 observations,    complexity param=0.0001309726
##   mean=0.6524064, MSE=0.2267723 
##   left son=32020 (8 obs) right son=32021 (179 obs)
##   Primary splits:
##       description_length < 745.5    to the left,  improve=0.03191367, (0 missing)
##       social_media_count splits as  RLLR,         improve=0.01789012, (0 missing)
##       campaign_duration  < 23.325   to the right, improve=0.01652465, (0 missing)
##       goal               < 942.5    to the left,  improve=0.01592984, (0 missing)
##       mo_launched        splits as  -RR--RLR--R-, improve=0.01508135, (0 missing)
## 
## Node number 16011: 12 observations
##   mean=1, MSE=0 
## 
## Node number 16018: 79 observations,    complexity param=0.0001049023
##   mean=0.5949367, MSE=0.240987 
##   left son=32036 (61 obs) right son=32037 (18 obs)
##   Primary splits:
##       reward_length      < 4924     to the right, improve=0.04093516, (0 missing)
##       description_length < 847      to the left,  improve=0.03695770, (0 missing)
##       goal               < 1465     to the left,  improve=0.03695770, (0 missing)
##       mo_launched        splits as  R--LL---LL-R, improve=0.01390071, (0 missing)
##       campaign_duration  < 31.915   to the right, improve=0.01208312, (0 missing)
## 
## Node number 16019: 37 observations
##   mean=0.7837838, MSE=0.1694668 
## 
## Node number 16136: 7 observations
##   mean=0, MSE=0 
## 
## Node number 16137: 90 observations,    complexity param=0.0001032747
##   mean=0.6333333, MSE=0.2322222 
##   left son=32274 (7 obs) right son=32275 (83 obs)
##   Primary splits:
##       goal               < 3900     to the right, improve=0.04388573, (0 missing)
##       reward_length      < 8081.5   to the right, improve=0.02930622, (0 missing)
##       mo_launched        splits as  ----RRLRL--L, improve=0.02894737, (0 missing)
##       description_length < 1282.5   to the left,  improve=0.02246146, (0 missing)
##       campaign_duration  < 52.015   to the right, improve=0.01410224, (0 missing)
## 
## Node number 16138: 600 observations,    complexity param=0.0001199014
##   mean=0.6933333, MSE=0.2126222 
##   left son=32276 (92 obs) right son=32277 (508 obs)
##   Primary splits:
##       reward_length      < 5040.5   to the left,  improve=0.009638499, (0 missing)
##       campaign_duration  < 33.97    to the right, improve=0.005287707, (0 missing)
##       description_length < 1341     to the right, improve=0.005221170, (0 missing)
##       goal               < 3525     to the right, improve=0.002980943, (0 missing)
##       social_media_count splits as  LRLR,         improve=0.002391404, (0 missing)
## 
## Node number 16139: 13 observations
##   mean=0.9230769, MSE=0.07100592 
## 
## Node number 16140: 360 observations,    complexity param=0.00011046
##   mean=0.7166667, MSE=0.2030556 
##   left son=32280 (352 obs) right son=32281 (8 obs)
##   Primary splits:
##       reward_length      < 4345     to the right, improve=0.008985201, (0 missing)
##       description_length < 5854.5   to the left,  improve=0.006792773, (0 missing)
##       category           splits as  ----------R--L-, improve=0.006253664, (0 missing)
##       mo_launched        splits as  LRLL-----LL-, improve=0.005608386, (0 missing)
##       usa                < 0.5      to the left,  improve=0.004550105, (0 missing)
## 
## Node number 16141: 148 observations,    complexity param=0.0001054231
##   mean=0.8040541, MSE=0.1575511 
##   left son=32282 (76 obs) right son=32283 (72 obs)
##   Primary splits:
##       reward_length      < 6155     to the left,  improve=0.03026583, (0 missing)
##       mo_launched        splits as  LLRL-----RL-, improve=0.02045917, (0 missing)
##       campaign_duration  < 34.98    to the right, improve=0.01795994, (0 missing)
##       description_length < 1324     to the right, improve=0.01167915, (0 missing)
##       social_media_count splits as  L-R-,         improve=0.00744085, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  LLLL-----RR-, agree=0.581, adj=0.139, (0 split)
##       goal               < 1175     to the left,  agree=0.554, adj=0.083, (0 split)
##       description_length < 1908     to the left,  agree=0.554, adj=0.083, (0 split)
##       campaign_duration  < 52.86    to the left,  agree=0.547, adj=0.069, (0 split)
##       usa                < 0.5      to the right, agree=0.541, adj=0.056, (0 split)
## 
## Node number 16142: 41 observations,    complexity param=0.0001316118
##   mean=0.6585366, MSE=0.2248662 
##   left son=32284 (16 obs) right son=32285 (25 obs)
##   Primary splits:
##       goal               < 2900     to the right, improve=0.13905420, (0 missing)
##       reward_length      < 5251.5   to the right, improve=0.13227510, (0 missing)
##       mo_launched        splits as  LRLL-----RR-, improve=0.12194510, (0 missing)
##       description_length < 1620     to the right, improve=0.10645000, (0 missing)
##       campaign_duration  < 35.065   to the left,  improve=0.03729599, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  LRRL-----RR-, agree=0.683, adj=0.188, (0 split)
##       campaign_duration  < 29.99    to the left,  agree=0.659, adj=0.125, (0 split)
##       reward_length      < 4469.5   to the left,  agree=0.659, adj=0.125, (0 split)
##       category           splits as  ----------R--L-, agree=0.634, adj=0.063, (0 split)
##       description_length < 3274.5   to the right, agree=0.634, adj=0.063, (0 split)
## 
## Node number 16143: 158 observations
##   mean=0.8797468, MSE=0.1057923 
## 
## Node number 16160: 31 observations,    complexity param=0.0001482642
##   mean=0.3548387, MSE=0.2289282 
##   left son=32320 (8 obs) right son=32321 (23 obs)
##   Primary splits:
##       goal               < 2750     to the right, improve=0.19130430, (0 missing)
##       mo_launched        splits as  --RLLLRLRR--, improve=0.16165010, (0 missing)
##       description_length < 1715     to the left,  improve=0.11089430, (0 missing)
##       campaign_duration  < 40.255   to the left,  improve=0.08026186, (0 missing)
##       reward_length      < 7499     to the left,  improve=0.05976732, (0 missing)
##   Surrogate splits:
##       mo_launched splits as  --RRLRRRRR--, agree=0.839, adj=0.375, (0 split)
## 
## Node number 16161: 89 observations,    complexity param=0.0001778217
##   mean=0.6404494, MSE=0.230274 
##   left son=32322 (62 obs) right son=32323 (27 obs)
##   Primary splits:
##       mo_launched        splits as  --RRLRLLLL--, improve=0.08451760, (0 missing)
##       campaign_duration  < 30.045   to the left,  improve=0.03436792, (0 missing)
##       goal               < 3750     to the right, improve=0.03022204, (0 missing)
##       reward_length      < 6450     to the left,  improve=0.02811609, (0 missing)
##       social_media_count splits as  RLR-,         improve=0.01824568, (0 missing)
##   Surrogate splits:
##       category           splits as  -RL-LRL--------, agree=0.719, adj=0.074, (0 split)
##       description_length < 1132.5   to the right, agree=0.719, adj=0.074, (0 split)
## 
## Node number 16166: 20 observations
##   mean=0.6, MSE=0.24 
## 
## Node number 16167: 148 observations,    complexity param=0.0001478085
##   mean=0.8378378, MSE=0.1358656 
##   left son=32334 (36 obs) right son=32335 (112 obs)
##   Primary splits:
##       mo_launched        splits as  --LLRRRRRR--, improve=0.093639330, (0 missing)
##       reward_length      < 4378     to the left,  improve=0.045890110, (0 missing)
##       description_length < 1232     to the right, improve=0.020221470, (0 missing)
##       goal               < 999.5    to the left,  improve=0.013194950, (0 missing)
##       campaign_duration  < 35.4     to the right, improve=0.005593701, (0 missing)
##   Surrogate splits:
##       campaign_duration < 29.985   to the left,  agree=0.777, adj=0.083, (0 split)
##       reward_length     < 5643.5   to the right, agree=0.770, adj=0.056, (0 split)
## 
## Node number 16176: 39 observations,    complexity param=0.0001251217
##   mean=0.4871795, MSE=0.2498356 
##   left son=32352 (23 obs) right son=32353 (16 obs)
##   Primary splits:
##       goal               < 1825     to the right, improve=0.11173480, (0 missing)
##       description_length < 2795     to the left,  improve=0.08496138, (0 missing)
##       reward_length      < 8800     to the right, improve=0.05810696, (0 missing)
##       mo_launched        splits as  LL---RRL-LLL, improve=0.03868421, (0 missing)
##       campaign_duration  < 44.93    to the right, improve=0.03553806, (0 missing)
##   Surrogate splits:
##       reward_length      < 8147     to the right, agree=0.692, adj=0.250, (0 split)
##       campaign_duration  < 55.06    to the left,  agree=0.667, adj=0.187, (0 split)
##       mo_launched        splits as  LL---LRL-LRL, agree=0.667, adj=0.187, (0 split)
##       usa                < 0.5      to the right, agree=0.641, adj=0.125, (0 split)
##       description_length < 4444.5   to the left,  agree=0.641, adj=0.125, (0 split)
## 
## Node number 16177: 10 observations
##   mean=0.8, MSE=0.16 
## 
## Node number 16184: 71 observations,    complexity param=0.0001591987
##   mean=0.6619718, MSE=0.2237651 
##   left son=32368 (27 obs) right son=32369 (44 obs)
##   Primary splits:
##       reward_length      < 5433.5   to the left,  improve=0.12976170, (0 missing)
##       mo_launched        splits as  -RRL-R-RRRRR, improve=0.02662741, (0 missing)
##       campaign_duration  < 45.245   to the left,  improve=0.02575319, (0 missing)
##       goal               < 850      to the left,  improve=0.02472226, (0 missing)
##       description_length < 3333     to the left,  improve=0.01665225, (0 missing)
##   Surrogate splits:
##       mo_launched       splits as  -RRL-R-RRLRR, agree=0.648, adj=0.074, (0 split)
##       campaign_duration < 45.02    to the right, agree=0.634, adj=0.037, (0 split)
##       goal              < 775      to the left,  agree=0.634, adj=0.037, (0 split)
## 
## Node number 16185: 23 observations
##   mean=0.9565217, MSE=0.0415879 
## 
## Node number 16186: 246 observations,    complexity param=0.0001591987
##   mean=0.8211382, MSE=0.1468702 
##   left son=32372 (101 obs) right son=32373 (145 obs)
##   Primary splits:
##       mo_launched        splits as  RRRRLRLLLRRL, improve=0.055591850, (0 missing)
##       social_media_count splits as  RLLL, improve=0.019764340, (0 missing)
##       reward_length      < 7484     to the right, improve=0.018182920, (0 missing)
##       campaign_duration  < 59.98    to the right, improve=0.012979800, (0 missing)
##       category           splits as  -RR-L-L--R----R, improve=0.008271713, (0 missing)
##   Surrogate splits:
##       description_length < 5267.5   to the right, agree=0.610, adj=0.05, (0 split)
##       campaign_duration  < 30.01    to the left,  agree=0.598, adj=0.02, (0 split)
##       reward_length      < 4079     to the left,  agree=0.598, adj=0.02, (0 split)
##       social_media_count splits as  RRRL, agree=0.593, adj=0.01, (0 split)
##       category           splits as  -LR-R-R--R----R, agree=0.593, adj=0.01, (0 split)
## 
## Node number 16187: 268 observations
##   mean=0.9141791, MSE=0.07845567 
## 
## Node number 16194: 12 observations
##   mean=0.4166667, MSE=0.2430556 
## 
## Node number 16195: 14 observations
##   mean=0.8571429, MSE=0.122449 
## 
## Node number 16200: 129 observations,    complexity param=0.0001237837
##   mean=0.6744186, MSE=0.2195782 
##   left son=32400 (88 obs) right son=32401 (41 obs)
##   Primary splits:
##       reward_length      < 13856.5  to the left,  improve=0.03611296, (0 missing)
##       social_media_count splits as  L-RL,         improve=0.03235558, (0 missing)
##       description_length < 3522     to the left,  improve=0.02338004, (0 missing)
##       campaign_duration  < 40.8     to the right, improve=0.02008671, (0 missing)
##       mo_launched        splits as  ---RL-L-RLR-, improve=0.01953804, (0 missing)
##   Surrogate splits:
##       usa                < 0.5      to the right, agree=0.69, adj=0.024, (0 split)
##       category           splits as  -RL-L-----L--L-, agree=0.69, adj=0.024, (0 split)
##       goal               < 2379.5   to the right, agree=0.69, adj=0.024, (0 split)
##       description_length < 3334.5   to the left,  agree=0.69, adj=0.024, (0 split)
## 
## Node number 16201: 10 observations
##   mean=1, MSE=0 
## 
## Node number 16324: 8 observations
##   mean=0.25, MSE=0.1875 
## 
## Node number 16325: 28 observations
##   mean=0.7857143, MSE=0.1683673 
## 
## Node number 18386: 7 observations
##   mean=0.1428571, MSE=0.122449 
## 
## Node number 18387: 13 observations
##   mean=0.6153846, MSE=0.2366864 
## 
## Node number 18388: 7 observations
##   mean=0, MSE=0 
## 
## Node number 18389: 17 observations
##   mean=0.4705882, MSE=0.2491349 
## 
## Node number 20212: 15 observations
##   mean=0.4, MSE=0.24 
## 
## Node number 20213: 14 observations
##   mean=0.8571429, MSE=0.122449 
## 
## Node number 20700: 17 observations
##   mean=0.05882353, MSE=0.05536332 
## 
## Node number 20701: 79 observations,    complexity param=0.0001173533
##   mean=0.2405063, MSE=0.182663 
##   left son=41402 (43 obs) right son=41403 (36 obs)
##   Primary splits:
##       reward_length      < 7776.5   to the left,  improve=0.06666723, (0 missing)
##       description_length < 2367.5   to the left,  improve=0.04954892, (0 missing)
##       campaign_duration  < 36.52    to the left,  improve=0.03618973, (0 missing)
##       mo_launched        splits as  --RL-RRRLL-R, improve=0.02646102, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.02422209, (0 missing)
##   Surrogate splits:
##       category           splits as  R-------L------, agree=0.684, adj=0.306, (0 split)
##       mo_launched        splits as  --RL-RRLLL-L, agree=0.671, adj=0.278, (0 split)
##       description_length < 3208.5   to the left,  agree=0.633, adj=0.194, (0 split)
##       goal               < 19000    to the right, agree=0.582, adj=0.083, (0 split)
##       campaign_duration  < 29.77    to the right, agree=0.570, adj=0.056, (0 split)
## 
## Node number 20702: 11 observations
##   mean=0.09090909, MSE=0.08264463 
## 
## Node number 20703: 78 observations,    complexity param=0.0001022147
##   mean=0.4615385, MSE=0.2485207 
##   left son=41406 (66 obs) right son=41407 (12 obs)
##   Primary splits:
##       mo_launched        splits as  --RL-LLLRL-L, improve=0.030784030, (0 missing)
##       reward_length      < 8455     to the left,  improve=0.022663780, (0 missing)
##       description_length < 4127.5   to the left,  improve=0.022084200, (0 missing)
##       campaign_duration  < 35.24    to the right, improve=0.017705850, (0 missing)
##       goal               < 27750    to the right, improve=0.005254516, (0 missing)
## 
## Node number 20708: 12 observations
##   mean=0, MSE=0 
## 
## Node number 20709: 90 observations,    complexity param=0.0001009297
##   mean=0.2777778, MSE=0.2006173 
##   left son=41418 (73 obs) right son=41419 (17 obs)
##   Primary splits:
##       campaign_duration  < 42.54    to the left,  improve=0.07350152, (0 missing)
##       goal               < 14900    to the right, improve=0.03461538, (0 missing)
##       description_length < 3240.5   to the left,  improve=0.02780749, (0 missing)
##       mo_launched        splits as  RL--L-L---L-, improve=0.02168717, (0 missing)
##       reward_length      < 5598     to the left,  improve=0.01969231, (0 missing)
## 
## Node number 20710: 16 observations
##   mean=0.25, MSE=0.1875 
## 
## Node number 20711: 26 observations,    complexity param=0.0001009297
##   mean=0.5384615, MSE=0.2485207 
##   left son=41422 (18 obs) right son=41423 (8 obs)
##   Primary splits:
##       description_length < 2762.5   to the left,  improve=0.20254630, (0 missing)
##       mo_launched        splits as  LR--R-L---L-, improve=0.10519480, (0 missing)
##       reward_length      < 6179     to the right, improve=0.08002646, (0 missing)
##       goal               < 12125    to the left,  improve=0.08002646, (0 missing)
##       campaign_duration  < 30.445   to the right, improve=0.00952381, (0 missing)
##   Surrogate splits:
##       reward_length      < 8519     to the left,  agree=0.808, adj=0.375, (0 split)
##       social_media_count splits as  LLR-,         agree=0.731, adj=0.125, (0 split)
##       mo_launched        splits as  LL--R-L---L-, agree=0.731, adj=0.125, (0 split)
## 
## Node number 20728: 30 observations
##   mean=0.2666667, MSE=0.1955556 
## 
## Node number 20729: 7 observations
##   mean=0.7142857, MSE=0.2040816 
## 
## Node number 20730: 7 observations
##   mean=0.1428571, MSE=0.122449 
## 
## Node number 20731: 21 observations,    complexity param=0.0001083011
##   mean=0.7142857, MSE=0.2040816 
##   left son=41462 (13 obs) right son=41463 (8 obs)
##   Primary splits:
##       goal               < 11550    to the left,  improve=0.246153800, (0 missing)
##       campaign_duration  < 40.55    to the left,  improve=0.077884620, (0 missing)
##       description_length < 3157     to the left,  improve=0.077884620, (0 missing)
##       reward_length      < 6278.5   to the left,  improve=0.014814810, (0 missing)
##       mo_launched        splits as  --R--L--R---, improve=0.008333333, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 43.02    to the left,  agree=0.762, adj=0.375, (0 split)
##       reward_length      < 6503.5   to the left,  agree=0.762, adj=0.375, (0 split)
##       mo_launched        splits as  --L--L--R---, agree=0.667, adj=0.125, (0 split)
##       description_length < 3773     to the left,  agree=0.667, adj=0.125, (0 split)
## 
## Node number 20836: 20 observations,    complexity param=0.0001316634
##   mean=0.2, MSE=0.16 
##   left son=41672 (13 obs) right son=41673 (7 obs)
##   Primary splits:
##       campaign_duration  < 43.455   to the left,  improve=0.46428570, (0 missing)
##       description_length < 6302.5   to the left,  improve=0.25000000, (0 missing)
##       mo_launched        splits as  -R-R--L-RL-L, improve=0.20454550, (0 missing)
##       reward_length      < 8720.5   to the right, improve=0.02472527, (0 missing)
##       category           splits as  L-------R---L--, improve=0.01041667, (0 missing)
##   Surrogate splits:
##       goal               < 22250    to the left,  agree=0.75, adj=0.286, (0 split)
##       description_length < 7365.5   to the left,  agree=0.75, adj=0.286, (0 split)
## 
## Node number 20837: 46 observations,    complexity param=0.0001230743
##   mean=0.4782609, MSE=0.2495274 
##   left son=41674 (34 obs) right son=41675 (12 obs)
##   Primary splits:
##       campaign_duration  < 33.88    to the right, improve=0.10444520, (0 missing)
##       reward_length      < 6575     to the left,  improve=0.08091908, (0 missing)
##       description_length < 5894.5   to the right, improve=0.06629157, (0 missing)
##       mo_launched        splits as  -R-L--L-RL-R, improve=0.05411255, (0 missing)
##       category           splits as  L-------R---L--, improve=0.04568765, (0 missing)
##   Surrogate splits:
##       mo_launched splits as  -L-L--R-LL-L, agree=0.761, adj=0.083, (0 split)
## 
## Node number 20838: 10 observations
##   mean=0.5, MSE=0.25 
## 
## Node number 20839: 11 observations
##   mean=1, MSE=0 
## 
## Node number 20930: 10 observations
##   mean=0.1, MSE=0.09 
## 
## Node number 20931: 69 observations,    complexity param=0.0001089864
##   mean=0.4347826, MSE=0.2457467 
##   left son=41862 (61 obs) right son=41863 (8 obs)
##   Primary splits:
##       reward_length      < 6265.5   to the right, improve=0.05302648, (0 missing)
##       campaign_duration  < 31.06    to the left,  improve=0.04465393, (0 missing)
##       description_length < 9492     to the left,  improve=0.02005968, (0 missing)
##       usa                < 0.5      to the right, improve=0.01930958, (0 missing)
##       mo_launched        splits as  --LR-RL-R-L-, improve=0.01046512, (0 missing)
## 
## Node number 21272: 236 observations,    complexity param=0.0001262147
##   mean=0.3050847, MSE=0.212008 
##   left son=42544 (127 obs) right son=42545 (109 obs)
##   Primary splits:
##       description_length < 3263     to the left,  improve=0.020443060, (0 missing)
##       campaign_duration  < 62.25    to the left,  improve=0.018152390, (0 missing)
##       mo_launched        splits as  L-R--RR--L-R, improve=0.016398350, (0 missing)
##       usa                < 0.5      to the left,  improve=0.010577870, (0 missing)
##       reward_length      < 6703     to the left,  improve=0.007074324, (0 missing)
##   Surrogate splits:
##       reward_length     < 8119     to the left,  agree=0.581, adj=0.092, (0 split)
##       category          splits as  --------R---L--, agree=0.572, adj=0.073, (0 split)
##       campaign_duration < 28.985   to the right, agree=0.555, adj=0.037, (0 split)
##       goal              < 8662.5   to the left,  agree=0.551, adj=0.028, (0 split)
##       mo_launched       splits as  L-L--RL--L-L, agree=0.547, adj=0.018, (0 split)
## 
## Node number 21273: 21 observations,    complexity param=0.0001262147
##   mean=0.5238095, MSE=0.2494331 
##   left son=42546 (14 obs) right son=42547 (7 obs)
##   Primary splits:
##       mo_launched        splits as  L-R--RL--R-L, improve=0.45454550, (0 missing)
##       description_length < 1193     to the left,  improve=0.12622380, (0 missing)
##       reward_length      < 6133     to the right, improve=0.07272727, (0 missing)
##       goal               < 5250     to the right, improve=0.05586777, (0 missing)
##       campaign_duration  < 30.02    to the left,  improve=0.02526224, (0 missing)
##   Surrogate splits:
##       goal          < 5250     to the right, agree=0.714, adj=0.143, (0 split)
##       reward_length < 5694.5   to the right, agree=0.714, adj=0.143, (0 split)
## 
## Node number 21292: 14 observations
##   mean=0, MSE=0 
## 
## Node number 21293: 20 observations,    complexity param=0.0001042962
##   mean=0.45, MSE=0.2475 
##   left son=42586 (7 obs) right son=42587 (13 obs)
##   Primary splits:
##       mo_launched        splits as  -R-LR--RL-R-, improve=0.20523920, (0 missing)
##       goal               < 5688.5   to the right, improve=0.10774410, (0 missing)
##       description_length < 1920.5   to the left,  improve=0.10774410, (0 missing)
##       reward_length      < 4999.5   to the right, improve=0.08249158, (0 missing)
##   Surrogate splits:
##       reward_length      < 5094     to the right, agree=0.75, adj=0.286, (0 split)
##       description_length < 1347.5   to the left,  agree=0.70, adj=0.143, (0 split)
## 
## Node number 21294: 179 observations,    complexity param=0.0001405862
##   mean=0.4860335, MSE=0.2498049 
##   left son=42588 (22 obs) right son=42589 (157 obs)
##   Primary splits:
##       reward_length      < 5884     to the left,  improve=0.02552285, (0 missing)
##       description_length < 4508     to the right, improve=0.01941063, (0 missing)
##       campaign_duration  < 22.695   to the left,  improve=0.01937966, (0 missing)
##       goal               < 4997     to the right, improve=0.01769591, (0 missing)
##       mo_launched        splits as  -R-LR--LR-L-, improve=0.01332375, (0 missing)
## 
## Node number 21295: 14 observations
##   mean=0.7857143, MSE=0.1683673 
## 
## Node number 21304: 8 observations
##   mean=0, MSE=0 
## 
## Node number 21305: 33 observations,    complexity param=0.0001405671
##   mean=0.5454545, MSE=0.2479339 
##   left son=42610 (7 obs) right son=42611 (26 obs)
##   Primary splits:
##       reward_length      < 6483.5   to the left,  improve=0.17600730, (0 missing)
##       mo_launched        splits as  -R-R---L--L-, improve=0.05653846, (0 missing)
##       category           splits as  --------R---L--, improve=0.04938272, (0 missing)
##       description_length < 7415.5   to the left,  improve=0.04424020, (0 missing)
##       campaign_duration  < 29.98    to the right, improve=0.02819549, (0 missing)
## 
## Node number 21340: 84 observations,    complexity param=0.0001481675
##   mean=0.4166667, MSE=0.2430556 
##   left son=42680 (39 obs) right son=42681 (45 obs)
##   Primary splits:
##       mo_launched        splits as  L-----RLRLRL, improve=0.09157509, (0 missing)
##       description_length < 3517     to the left,  improve=0.07750916, (0 missing)
##       reward_length      < 6977.5   to the right, improve=0.07142857, (0 missing)
##       goal               < 6750     to the left,  improve=0.04736643, (0 missing)
##       campaign_duration  < 29.28    to the right, improve=0.04209913, (0 missing)
##   Surrogate splits:
##       reward_length      < 6960     to the right, agree=0.667, adj=0.282, (0 split)
##       description_length < 3103     to the left,  agree=0.607, adj=0.154, (0 split)
##       campaign_duration  < 30.02    to the right, agree=0.595, adj=0.128, (0 split)
##       goal               < 7575     to the left,  agree=0.595, adj=0.128, (0 split)
##       category           splits as  R------------L-, agree=0.571, adj=0.077, (0 split)
## 
## Node number 21341: 44 observations,    complexity param=0.0001481675
##   mean=0.6136364, MSE=0.2370868 
##   left son=42682 (35 obs) right son=42683 (9 obs)
##   Primary splits:
##       description_length < 2098.5   to the left,  improve=0.16190480, (0 missing)
##       campaign_duration  < 26.88    to the left,  improve=0.08580850, (0 missing)
##       reward_length      < 6338     to the left,  improve=0.07867344, (0 missing)
##       mo_launched        splits as  L-----RRLLRR, improve=0.06535948, (0 missing)
##       goal               < 6100     to the right, improve=0.02042484, (0 missing)
##   Surrogate splits:
##       reward_length < 7475     to the left,  agree=0.841, adj=0.222, (0 split)
##       mo_launched   splits as  L-----RLLLLL, agree=0.818, adj=0.111, (0 split)
## 
## Node number 21342: 8 observations
##   mean=0.375, MSE=0.234375 
## 
## Node number 21343: 30 observations,    complexity param=0.0001278527
##   mean=0.8, MSE=0.16 
##   left son=42686 (10 obs) right son=42687 (20 obs)
##   Primary splits:
##       reward_length      < 8720     to the right, improve=0.28125000, (0 missing)
##       mo_launched        splits as  R-----LLLRRR, improve=0.09090909, (0 missing)
##       goal               < 6585     to the left,  improve=0.09090909, (0 missing)
##       description_length < 5852.5   to the left,  improve=0.09090909, (0 missing)
##       campaign_duration  < 30.17    to the right, improve=0.03125000, (0 missing)
##   Surrogate splits:
##       mo_launched splits as  L-----RRRRRR, agree=0.7, adj=0.1, (0 split)
## 
## Node number 21354: 12 observations
##   mean=0.3333333, MSE=0.2222222 
## 
## Node number 21355: 23 observations,    complexity param=0.0001480224
##   mean=0.7391304, MSE=0.1928166 
##   left son=42710 (11 obs) right son=42711 (12 obs)
##   Primary splits:
##       reward_length      < 6518.5   to the right, improve=0.38502670, (0 missing)
##       campaign_duration  < 39.98    to the right, improve=0.11235610, (0 missing)
##       goal               < 5250     to the left,  improve=0.05106209, (0 missing)
##       description_length < 1064     to the left,  improve=0.03602941, (0 missing)
##       mo_launched        splits as  -L-RRL------, improve=0.02970885, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 30.515   to the right, agree=0.609, adj=0.182, (0 split)
##       mo_launched        splits as  -R-LRR------, agree=0.609, adj=0.182, (0 split)
##       goal               < 4750     to the left,  agree=0.609, adj=0.182, (0 split)
##       description_length < 895      to the right, agree=0.609, adj=0.182, (0 split)
## 
## Node number 21360: 65 observations,    complexity param=0.000101404
##   mean=0.5230769, MSE=0.2494675 
##   left son=42720 (46 obs) right son=42721 (19 obs)
##   Primary splits:
##       campaign_duration  < 29.165   to the right, improve=0.07565817, (0 missing)
##       mo_launched        splits as  -RLRRR------, improve=0.04329538, (0 missing)
##       description_length < 2387     to the right, improve=0.04179279, (0 missing)
##       reward_length      < 6682     to the left,  improve=0.02949008, (0 missing)
##       goal               < 6200     to the left,  improve=0.01054185, (0 missing)
##   Surrogate splits:
##       description_length < 2133.5   to the right, agree=0.754, adj=0.158, (0 split)
##       reward_length      < 8648.5   to the left,  agree=0.723, adj=0.053, (0 split)
## 
## Node number 21361: 16 observations
##   mean=0.8125, MSE=0.1523438 
## 
## Node number 21500: 52 observations,    complexity param=0.0001018293
##   mean=0.6153846, MSE=0.2366864 
##   left son=43000 (27 obs) right son=43001 (25 obs)
##   Primary splits:
##       description_length < 5093.5   to the left,  improve=0.08181481, (0 missing)
##       reward_length      < 10179.5  to the right, improve=0.04281481, (0 missing)
##       goal               < 7350     to the left,  improve=0.03333333, (0 missing)
##       mo_launched        splits as  L------L-R--, improve=0.01968006, (0 missing)
##       social_media_count splits as  RL-L,         improve=0.01929825, (0 missing)
##   Surrogate splits:
##       social_media_count splits as  RL-R,         agree=0.635, adj=0.24, (0 split)
##       campaign_duration  < 45.02    to the left,  agree=0.577, adj=0.12, (0 split)
##       reward_length      < 10497.5  to the left,  agree=0.577, adj=0.12, (0 split)
##       mo_launched        splits as  L------L-R--, agree=0.558, adj=0.08, (0 split)
##       goal               < 9053.5   to the left,  agree=0.558, adj=0.08, (0 split)
## 
## Node number 21501: 18 observations
##   mean=0.8333333, MSE=0.1388889 
## 
## Node number 21790: 8 observations
##   mean=0.25, MSE=0.1875 
## 
## Node number 21791: 14 observations
##   mean=0.8571429, MSE=0.122449 
## 
## Node number 21816: 27 observations,    complexity param=0.0001451602
##   mean=0.2592593, MSE=0.1920439 
##   left son=43632 (18 obs) right son=43633 (9 obs)
##   Primary splits:
##       goal               < 53461.5  to the left,  improve=0.43214290, (0 missing)
##       reward_length      < 15133    to the right, improve=0.14736840, (0 missing)
##       mo_launched        splits as  -----RRLL---, improve=0.08928571, (0 missing)
##       description_length < 12367.5  to the right, improve=0.03952068, (0 missing)
##       social_media_count splits as  RLL-,         improve=0.02146916, (0 missing)
##   Surrogate splits:
##       video_status < 0.5      to the right, agree=0.741, adj=0.222, (0 split)
## 
## Node number 21817: 17 observations
##   mean=0.5882353, MSE=0.2422145 
## 
## Node number 22046: 25 observations,    complexity param=0.000104656
##   mean=0.56, MSE=0.2464 
##   left son=44092 (14 obs) right son=44093 (11 obs)
##   Primary splits:
##       description_length < 3371.5   to the left,  improve=0.212556900, (0 missing)
##       mo_launched        splits as  ---L-RRL--L-, improve=0.053030300, (0 missing)
##       reward_length      < 14115    to the right, improve=0.053030300, (0 missing)
##       campaign_duration  < 30.935   to the right, improve=0.027262420, (0 missing)
##       goal               < 5600     to the left,  improve=0.004329004, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 33.435   to the left,  agree=0.64, adj=0.182, (0 split)
##       social_media_count splits as  L-R-, agree=0.64, adj=0.182, (0 split)
##       mo_launched        splits as  ---L-LRL--L-, agree=0.64, adj=0.182, (0 split)
##       category           splits as  R-----------L--, agree=0.60, adj=0.091, (0 split)
## 
## Node number 22047: 29 observations
##   mean=0.7931034, MSE=0.1640904 
## 
## Node number 22166: 88 observations,    complexity param=0.000125572
##   mean=0.5113636, MSE=0.2498709 
##   left son=44332 (53 obs) right son=44333 (35 obs)
##   Primary splits:
##       campaign_duration  < 30.455   to the left,  improve=0.03630693, (0 missing)
##       reward_length      < 13468.5  to the left,  improve=0.02696187, (0 missing)
##       description_length < 6382.5   to the right, improve=0.02570605, (0 missing)
##       goal               < 9923.5   to the right, improve=0.01911877, (0 missing)
##       mo_launched        splits as  --L-RR----RL, improve=0.01459796, (0 missing)
##   Surrogate splits:
##       category           splits as  R-----------L--, agree=0.659, adj=0.143, (0 split)
##       reward_length      < 11810    to the right, agree=0.659, adj=0.143, (0 split)
##       goal               < 4938.5   to the right, agree=0.625, adj=0.057, (0 split)
##       social_media_count splits as  LLR-, agree=0.614, adj=0.029, (0 split)
##       description_length < 8775.5   to the left,  agree=0.614, adj=0.029, (0 split)
## 
## Node number 22167: 45 observations
##   mean=0.6888889, MSE=0.214321 
## 
## Node number 22272: 14 observations
##   mean=0.07142857, MSE=0.06632653 
## 
## Node number 22273: 78 observations,    complexity param=0.0001680759
##   mean=0.3846154, MSE=0.2366864 
##   left son=44546 (63 obs) right son=44547 (15 obs)
##   Primary splits:
##       reward_length      < 14692.5  to the left,  improve=0.12232800, (0 missing)
##       campaign_duration  < 34.005   to the left,  improve=0.04010530, (0 missing)
##       mo_launched        splits as  R-LL--LR-LLR, improve=0.03150000, (0 missing)
##       description_length < 11243    to the left,  improve=0.02882353, (0 missing)
##       category           splits as  --------L----R-, improve=0.01939655, (0 missing)
##   Surrogate splits:
##       mo_launched splits as  L-LL--LL-LLR, agree=0.821, adj=0.067, (0 split)
## 
## Node number 23946: 24 observations
##   mean=0.3333333, MSE=0.2222222 
## 
## Node number 23947: 7 observations
##   mean=0.8571429, MSE=0.122449 
## 
## Node number 23948: 29 observations,    complexity param=0.0001586094
##   mean=0.3103448, MSE=0.2140309 
##   left son=47896 (14 obs) right son=47897 (15 obs)
##   Primary splits:
##       mo_launched        splits as  R-R--L-L--L-, improve=0.248915300, (0 missing)
##       reward_length      < 7526     to the left,  improve=0.083456790, (0 missing)
##       description_length < 1519     to the left,  improve=0.064021160, (0 missing)
##       campaign_duration  < 36.19    to the right, improve=0.016327160, (0 missing)
##       category           splits as  ------R---L----, improve=0.008108866, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 52.085   to the left,  agree=0.655, adj=0.286, (0 split)
##       description_length < 941.5    to the right, agree=0.621, adj=0.214, (0 split)
##       reward_length      < 7526     to the left,  agree=0.621, adj=0.214, (0 split)
##       social_media_count splits as  -RL-, agree=0.552, adj=0.071, (0 split)
##       category           splits as  ------L---R----, agree=0.552, adj=0.071, (0 split)
## 
## Node number 23949: 59 observations
##   mean=0.6101695, MSE=0.2378627 
## 
## Node number 23950: 25 observations
##   mean=0.64, MSE=0.2304 
## 
## Node number 23951: 11 observations
##   mean=1, MSE=0 
## 
## Node number 23974: 11 observations
##   mean=0.2727273, MSE=0.1983471 
## 
## Node number 23975: 41 observations,    complexity param=0.0001221256
##   mean=0.6097561, MSE=0.2379536 
##   left son=47950 (22 obs) right son=47951 (19 obs)
##   Primary splits:
##       description_length < 818.5    to the right, improve=0.11722490, (0 missing)
##       mo_launched        splits as  R-LL--LR---L, improve=0.07167614, (0 missing)
##       social_media_count splits as  LRR-,         improve=0.06746693, (0 missing)
##       campaign_duration  < 43.795   to the right, improve=0.03961957, (0 missing)
##       reward_length      < 7400.5   to the right, improve=0.03712121, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  L-LL--LR---R, agree=0.659, adj=0.263, (0 split)
##       campaign_duration  < 31.26    to the left,  agree=0.610, adj=0.158, (0 split)
##       category           splits as  ----L-R---L----, agree=0.585, adj=0.105, (0 split)
##       social_media_count splits as  LLR-, agree=0.561, adj=0.053, (0 split)
##       reward_length      < 5968     to the left,  agree=0.561, adj=0.053, (0 split)
## 
## Node number 23982: 24 observations,    complexity param=0.0001040036
##   mean=0.4583333, MSE=0.2482639 
##   left son=47964 (16 obs) right son=47965 (8 obs)
##   Primary splits:
##       mo_launched        splits as  -L--R---RLL-, improve=0.17132870, (0 missing)
##       reward_length      < 8387     to the left,  improve=0.10865600, (0 missing)
##       description_length < 625.5    to the left,  improve=0.08741259, (0 missing)
##       campaign_duration  < 59.98    to the left,  improve=0.06293706, (0 missing)
##       social_media_count splits as  LRRR,         improve=0.02586924, (0 missing)
##   Surrogate splits:
##       social_media_count splits as  LLRL,         agree=0.708, adj=0.125, (0 split)
##       goal               < 5550     to the right, agree=0.708, adj=0.125, (0 split)
##       description_length < 938      to the left,  agree=0.708, adj=0.125, (0 split)
##       reward_length      < 8387     to the left,  agree=0.708, adj=0.125, (0 split)
## 
## Node number 23983: 81 observations
##   mean=0.691358, MSE=0.2133821 
## 
## Node number 23984: 168 observations,    complexity param=0.0001247708
##   mean=0.4583333, MSE=0.2482639 
##   left son=47968 (107 obs) right son=47969 (61 obs)
##   Primary splits:
##       mo_launched        splits as  -R-R-LLLLLRL, improve=0.030600160, (0 missing)
##       description_length < 1064     to the right, improve=0.026358260, (0 missing)
##       campaign_duration  < 29.675   to the right, improve=0.025641030, (0 missing)
##       reward_length      < 6061     to the left,  improve=0.012743500, (0 missing)
##       social_media_count splits as  LLRR,         improve=0.007925408, (0 missing)
##   Surrogate splits:
##       description_length < 1796     to the left,  agree=0.667, adj=0.082, (0 split)
##       goal               < 7874.55  to the left,  agree=0.655, adj=0.049, (0 split)
##       reward_length      < 7315.5   to the left,  agree=0.649, adj=0.033, (0 split)
##       campaign_duration  < 13.73    to the right, agree=0.643, adj=0.016, (0 split)
## 
## Node number 23985: 134 observations,    complexity param=0.0001179638
##   mean=0.5671642, MSE=0.245489 
##   left son=47970 (30 obs) right son=47971 (104 obs)
##   Primary splits:
##       mo_launched        splits as  -R-L-RRRRRLR, improve=0.02104594, (0 missing)
##       description_length < 1571.5   to the left,  improve=0.01654772, (0 missing)
##       goal               < 6850     to the right, improve=0.01472395, (0 missing)
##       reward_length      < 7026.5   to the left,  improve=0.01339405, (0 missing)
##       campaign_duration  < 79.43    to the right, improve=0.00462037, (0 missing)
##   Surrogate splits:
##       reward_length < 7102     to the right, agree=0.784, adj=0.033, (0 split)
## 
## Node number 23986: 7 observations
##   mean=0.1428571, MSE=0.122449 
## 
## Node number 23987: 91 observations,    complexity param=0.0001028063
##   mean=0.7472527, MSE=0.1888661 
##   left son=47974 (32 obs) right son=47975 (59 obs)
##   Primary splits:
##       reward_length     < 6478.5   to the right, improve=0.04292015, (0 missing)
##       category          splits as  ------R---L----, improve=0.03884271, (0 missing)
##       goal              < 6250     to the right, improve=0.03855552, (0 missing)
##       campaign_duration < 60.5     to the left,  improve=0.03260099, (0 missing)
##       mo_launched       splits as  L-R-R-------, improve=0.02564649, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 29.91    to the left,  agree=0.703, adj=0.156, (0 split)
##       mo_launched        splits as  R-R-L-------, agree=0.670, adj=0.062, (0 split)
##       description_length < 1864     to the right, agree=0.670, adj=0.062, (0 split)
##       goal               < 6750     to the right, agree=0.659, adj=0.031, (0 split)
## 
## Node number 23988: 17 observations
##   mean=0.2941176, MSE=0.2076125 
## 
## Node number 23989: 46 observations,    complexity param=0.0001339914
##   mean=0.5869565, MSE=0.2424386 
##   left son=47978 (19 obs) right son=47979 (27 obs)
##   Primary splits:
##       campaign_duration  < 45.175   to the left,  improve=0.13862200, (0 missing)
##       description_length < 1457     to the right, improve=0.04873294, (0 missing)
##       social_media_count splits as  RLRR,         improve=0.04221611, (0 missing)
##       mo_launched        splits as  --RLLL--RLRL, improve=0.03419807, (0 missing)
##       reward_length      < 8396.5   to the left,  improve=0.03274300, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  --LRLR--RRRR, agree=0.652, adj=0.158, (0 split)
##       description_length < 1597.5   to the right, agree=0.652, adj=0.158, (0 split)
##       goal               < 4650     to the left,  agree=0.630, adj=0.105, (0 split)
##       reward_length      < 9427     to the right, agree=0.609, adj=0.053, (0 split)
## 
## Node number 23990: 84 observations,    complexity param=0.0001152301
##   mean=0.6547619, MSE=0.2260488 
##   left son=47980 (13 obs) right son=47981 (71 obs)
##   Primary splits:
##       reward_length      < 9096.5   to the right, improve=0.059112820, (0 missing)
##       description_length < 1101.5   to the left,  improve=0.054773440, (0 missing)
##       goal               < 6645.5   to the left,  improve=0.011456560, (0 missing)
##       category           splits as  ------R---L----, improve=0.011456560, (0 missing)
##       campaign_duration  < 30.02    to the left,  improve=0.007977897, (0 missing)
## 
## Node number 23991: 64 observations
##   mean=0.84375, MSE=0.1318359 
## 
## Node number 24016: 22 observations
##   mean=0.1818182, MSE=0.1487603 
## 
## Node number 24017: 7 observations
##   mean=0.8571429, MSE=0.122449 
## 
## Node number 24040: 12 observations
##   mean=0.08333333, MSE=0.07638889 
## 
## Node number 24041: 11 observations
##   mean=0.5454545, MSE=0.2479339 
## 
## Node number 24050: 50 observations,    complexity param=0.0001037198
##   mean=0.58, MSE=0.2436 
##   left son=48100 (35 obs) right son=48101 (15 obs)
##   Primary splits:
##       description_length < 1608     to the left,  improve=0.08515130, (0 missing)
##       mo_launched        splits as  ---RR-LLR--R, improve=0.07928689, (0 missing)
##       goal               < 5250     to the left,  improve=0.06816472, (0 missing)
##       campaign_duration  < 43.825   to the right, improve=0.05482799, (0 missing)
##       reward_length      < 19125    to the left,  improve=0.01477833, (0 missing)
##   Surrogate splits:
##       goal < 8950     to the left,  agree=0.74, adj=0.133, (0 split)
## 
## Node number 24051: 46 observations
##   mean=0.7826087, MSE=0.1701323 
## 
## Node number 24060: 7 observations
##   mean=0.2857143, MSE=0.2040816 
## 
## Node number 24061: 67 observations
##   mean=0.8358209, MSE=0.1372243 
## 
## Node number 24074: 27 observations
##   mean=0.1111111, MSE=0.09876543 
## 
## Node number 24075: 55 observations,    complexity param=0.0001129264
##   mean=0.4, MSE=0.24 
##   left son=48150 (10 obs) right son=48151 (45 obs)
##   Primary splits:
##       social_media_count splits as  RLR-,         improve=0.08333333, (0 missing)
##       reward_length      < 8437     to the left,  improve=0.06001984, (0 missing)
##       description_length < 2915     to the left,  improve=0.02667549, (0 missing)
##       campaign_duration  < 55.015   to the right, improve=0.02576490, (0 missing)
##       goal               < 32500    to the left,  improve=0.01785714, (0 missing)
##   Surrogate splits:
##       description_length < 4765.5   to the right, agree=0.855, adj=0.2, (0 split)
## 
## Node number 24076: 15 observations
##   mean=0.1333333, MSE=0.1155556 
## 
## Node number 24077: 40 observations,    complexity param=0.0001155337
##   mean=0.425, MSE=0.244375 
##   left son=48154 (14 obs) right son=48155 (26 obs)
##   Primary splits:
##       reward_length      < 14160    to the right, improve=0.09783311, (0 missing)
##       description_length < 2458.5   to the left,  improve=0.06909799, (0 missing)
##       mo_launched        splits as  R-L---L-RR-R, improve=0.06393862, (0 missing)
##       social_media_count splits as  LRRR,         improve=0.02881500, (0 missing)
##       goal               < 38500    to the right, improve=0.02301790, (0 missing)
##   Surrogate splits:
##       description_length < 2458.5   to the left,  agree=0.675, adj=0.071, (0 split)
## 
## Node number 24078: 58 observations,    complexity param=0.0001602301
##   mean=0.5, MSE=0.25 
##   left son=48156 (10 obs) right son=48157 (48 obs)
##   Primary splits:
##       reward_length      < 9844     to the left,  improve=0.13333330, (0 missing)
##       social_media_count splits as  RLR-,         improve=0.06521739, (0 missing)
##       description_length < 3229     to the right, improve=0.03586801, (0 missing)
##       goal               < 31500    to the right, improve=0.03217503, (0 missing)
##       campaign_duration  < 29.98    to the right, improve=0.02521008, (0 missing)
##   Surrogate splits:
##       campaign_duration < 59.545   to the right, agree=0.862, adj=0.2, (0 split)
## 
## Node number 24079: 10 observations
##   mean=0.9, MSE=0.09 
## 
## Node number 24082: 75 observations,    complexity param=0.0001818246
##   mean=0.2666667, MSE=0.1955556 
##   left son=48164 (50 obs) right son=48165 (25 obs)
##   Primary splits:
##       mo_launched        splits as  LLLLLLLRLLRR, improve=0.11636360, (0 missing)
##       reward_length      < 13379.5  to the left,  improve=0.07920708, (0 missing)
##       goal               < 22500    to the right, improve=0.05165289, (0 missing)
##       description_length < 2350.5   to the right, improve=0.05103668, (0 missing)
##       campaign_duration  < 30.015   to the left,  improve=0.03453689, (0 missing)
##   Surrogate splits:
##       reward_length      < 13032.5  to the left,  agree=0.72, adj=0.16, (0 split)
##       description_length < 4961     to the left,  agree=0.68, adj=0.04, (0 split)
## 
## Node number 24083: 86 observations,    complexity param=0.0001374502
##   mean=0.5116279, MSE=0.2498648 
##   left son=48166 (24 obs) right son=48167 (62 obs)
##   Primary splits:
##       mo_launched        splits as  RRRLRLLRRRRR, improve=0.04924824, (0 missing)
##       reward_length      < 13700.5  to the left,  improve=0.04233500, (0 missing)
##       description_length < 3200     to the right, improve=0.03451447, (0 missing)
##       social_media_count splits as  LR--,         improve=0.02703002, (0 missing)
##       campaign_duration  < 35.525   to the right, improve=0.02043858, (0 missing)
##   Surrogate splits:
##       reward_length     < 15097.5  to the right, agree=0.756, adj=0.125, (0 split)
##       campaign_duration < 20.3     to the left,  agree=0.733, adj=0.042, (0 split)
## 
## Node number 24086: 26 observations,    complexity param=0.0001057056
##   mean=0.6153846, MSE=0.2366864 
##   left son=48172 (17 obs) right son=48173 (9 obs)
##   Primary splits:
##       goal               < 17860    to the left,  improve=0.16732030, (0 missing)
##       description_length < 3707.5   to the left,  improve=0.12742420, (0 missing)
##       mo_launched        splits as  LR-L-RRLRRRR, improve=0.10850690, (0 missing)
##       campaign_duration  < 38.595   to the left,  improve=0.05432331, (0 missing)
##       reward_length      < 11489    to the right, improve=0.03878788, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  LL-L-RLLLRRL, agree=0.769, adj=0.333, (0 split)
##       description_length < 2706     to the right, agree=0.731, adj=0.222, (0 split)
##       campaign_duration  < 46.755   to the left,  agree=0.692, adj=0.111, (0 split)
##       reward_length      < 7066.5   to the right, agree=0.692, adj=0.111, (0 split)
## 
## Node number 24087: 10 observations
##   mean=1, MSE=0 
## 
## Node number 24088: 50 observations
##   mean=0.26, MSE=0.1924 
## 
## Node number 24089: 183 observations,    complexity param=0.000163713
##   mean=0.5027322, MSE=0.2499925 
##   left son=48178 (144 obs) right son=48179 (39 obs)
##   Primary splits:
##       campaign_duration  < 40.02    to the left,  improve=0.02911491, (0 missing)
##       social_media_count splits as  RRL-,         improve=0.02609114, (0 missing)
##       mo_launched        splits as  R--LLRR-L-R-, improve=0.02555424, (0 missing)
##       goal               < 19314.1  to the right, improve=0.01871040, (0 missing)
##       description_length < 3953     to the right, improve=0.01628032, (0 missing)
##   Surrogate splits:
##       reward_length      < 4988     to the right, agree=0.798, adj=0.051, (0 split)
##       description_length < 1923.5   to the right, agree=0.792, adj=0.026, (0 split)
## 
## Node number 24090: 51 observations,    complexity param=0.0001030149
##   mean=0.5294118, MSE=0.2491349 
##   left son=48180 (38 obs) right son=48181 (13 obs)
##   Primary splits:
##       social_media_count splits as  LRLL,         improve=0.07897548, (0 missing)
##       goal               < 14900    to the right, improve=0.06858766, (0 missing)
##       reward_length      < 7604     to the left,  improve=0.05152439, (0 missing)
##       campaign_duration  < 37.5     to the right, improve=0.04748338, (0 missing)
##       description_length < 4397     to the right, improve=0.04124579, (0 missing)
##   Surrogate splits:
##       campaign_duration < 22.5     to the right, agree=0.765, adj=0.077, (0 split)
##       goal              < 14796.5  to the right, agree=0.765, adj=0.077, (0 split)
## 
## Node number 24091: 43 observations
##   mean=0.744186, MSE=0.1903732 
## 
## Node number 24092: 23 observations
##   mean=0.3478261, MSE=0.2268431 
## 
## Node number 24093: 20 observations,    complexity param=0.0001249407
##   mean=0.75, MSE=0.1875 
##   left son=48186 (10 obs) right son=48187 (10 obs)
##   Primary splits:
##       campaign_duration  < 58       to the left,  improve=0.33333330, (0 missing)
##       social_media_count splits as  LR--,         improve=0.17948720, (0 missing)
##       goal               < 18500    to the left,  improve=0.09157509, (0 missing)
##       reward_length      < 8315.5   to the left,  improve=0.08417508, (0 missing)
##       description_length < 2526.5   to the right, improve=0.05555556, (0 missing)
##   Surrogate splits:
##       description_length < 2313     to the left,  agree=0.70, adj=0.4, (0 split)
##       goal               < 22500    to the right, agree=0.65, adj=0.3, (0 split)
##       reward_length      < 7205     to the right, agree=0.65, adj=0.3, (0 split)
##       social_media_count splits as  RL--,         agree=0.55, adj=0.1, (0 split)
## 
## Node number 24094: 15 observations
##   mean=0.4666667, MSE=0.2488889 
## 
## Node number 24095: 135 observations,    complexity param=0.0001007212
##   mean=0.7037037, MSE=0.2085048 
##   left son=48190 (117 obs) right son=48191 (18 obs)
##   Primary splits:
##       reward_length      < 7250.5   to the right, improve=0.04276316, (0 missing)
##       goal               < 17750    to the right, improve=0.02185615, (0 missing)
##       mo_launched        splits as  -RL----L-L-R, improve=0.01619433, (0 missing)
##       campaign_duration  < 28.015   to the left,  improve=0.01619433, (0 missing)
##       description_length < 4932     to the right, improve=0.01592105, (0 missing)
## 
## Node number 24176: 69 observations,    complexity param=0.000170796
##   mean=0.4492754, MSE=0.247427 
##   left son=48352 (17 obs) right son=48353 (52 obs)
##   Primary splits:
##       goal               < 49250    to the right, improve=0.09833370, (0 missing)
##       description_length < 6609.5   to the right, improve=0.09380979, (0 missing)
##       reward_length      < 8671     to the right, improve=0.07590973, (0 missing)
##       mo_launched        splits as  R--RR-LLRR--, improve=0.04845116, (0 missing)
##       campaign_duration  < 46.485   to the right, improve=0.01526431, (0 missing)
##   Surrogate splits:
##       campaign_duration < 60.02    to the right, agree=0.783, adj=0.118, (0 split)
##       mo_launched       splits as  L--RR-RRRR--, agree=0.783, adj=0.118, (0 split)
##       reward_length     < 16987    to the right, agree=0.783, adj=0.118, (0 split)
## 
## Node number 24177: 27 observations
##   mean=0.7407407, MSE=0.1920439 
## 
## Node number 24180: 20 observations,    complexity param=0.0001401988
##   mean=0.4, MSE=0.24 
##   left son=48360 (9 obs) right son=48361 (11 obs)
##   Primary splits:
##       mo_launched        splits as  -L--RL-LR---, improve=0.28451180, (0 missing)
##       campaign_duration  < 30.25    to the right, improve=0.21006940, (0 missing)
##       goal               < 17000    to the left,  improve=0.16666670, (0 missing)
##       social_media_count splits as  LRL-,         improve=0.06593407, (0 missing)
##       description_length < 7969     to the right, improve=0.04166667, (0 missing)
##   Surrogate splits:
##       description_length < 7983     to the right, agree=0.70, adj=0.333, (0 split)
##       reward_length      < 15912    to the left,  agree=0.70, adj=0.333, (0 split)
##       campaign_duration  < 30.6     to the left,  agree=0.65, adj=0.222, (0 split)
##       social_media_count splits as  LRR-,         agree=0.65, adj=0.222, (0 split)
## 
## Node number 24181: 89 observations,    complexity param=0.0001701715
##   mean=0.752809, MSE=0.1860876 
##   left son=48362 (7 obs) right son=48363 (82 obs)
##   Primary splits:
##       description_length < 5691.5   to the left,  improve=0.100086800, (0 missing)
##       reward_length      < 11232    to the left,  improve=0.048012040, (0 missing)
##       campaign_duration  < 58.135   to the right, improve=0.033001230, (0 missing)
##       goal               < 24875    to the right, improve=0.006863835, (0 missing)
##       mo_launched        splits as  -L--RL-RR---, improve=0.003499622, (0 missing)
##   Surrogate splits:
##       campaign_duration < 75.155   to the right, agree=0.944, adj=0.286, (0 split)
## 
## Node number 24184: 51 observations,    complexity param=0.000101825
##   mean=0.627451, MSE=0.2337562 
##   left son=48368 (37 obs) right son=48369 (14 obs)
##   Primary splits:
##       campaign_duration  < 39.97    to the left,  improve=0.08539931, (0 missing)
##       social_media_count splits as  LRRL,         improve=0.08459668, (0 missing)
##       goal               < 20500    to the left,  improve=0.07948137, (0 missing)
##       description_length < 14333.5  to the right, improve=0.02691922, (0 missing)
##       reward_length      < 22863    to the left,  improve=0.02181983, (0 missing)
##   Surrogate splits:
##       mo_launched   splits as  LL--L-L---LR, agree=0.765, adj=0.143, (0 split)
##       goal          < 48000    to the left,  agree=0.745, adj=0.071, (0 split)
##       reward_length < 19453.5  to the right, agree=0.745, adj=0.071, (0 split)
## 
## Node number 24185: 12 observations
##   mean=0.9166667, MSE=0.07638889 
## 
## Node number 24216: 16 observations
##   mean=0.25, MSE=0.1875 
## 
## Node number 24217: 270 observations,    complexity param=0.0001375129
##   mean=0.6, MSE=0.24 
##   left son=48434 (242 obs) right son=48435 (28 obs)
##   Primary splits:
##       description_length < 3803     to the left,  improve=0.016627310, (0 missing)
##       goal               < 11545    to the right, improve=0.009803922, (0 missing)
##       reward_length      < 11640.5  to the left,  improve=0.008599335, (0 missing)
##       campaign_duration  < 52.685   to the right, improve=0.005071713, (0 missing)
##       video_status       < 0.5      to the right, improve=0.003138805, (0 missing)
## 
## Node number 24218: 86 observations,    complexity param=0.0001480169
##   mean=0.5348837, MSE=0.2487831 
##   left son=48436 (37 obs) right son=48437 (49 obs)
##   Primary splits:
##       category           splits as  ------R---L----, improve=0.13456560, (0 missing)
##       goal               < 5199.5   to the left,  improve=0.06093297, (0 missing)
##       campaign_duration  < 57.68    to the right, improve=0.03478261, (0 missing)
##       mo_launched        splits as  RLLL-L-L---L, improve=0.02515528, (0 missing)
##       description_length < 2773     to the left,  improve=0.02421264, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 44.98    to the left,  agree=0.674, adj=0.243, (0 split)
##       social_media_count splits as  RRLL,         agree=0.651, adj=0.189, (0 split)
##       mo_launched        splits as  RRRL-R-R---L, agree=0.605, adj=0.081, (0 split)
##       reward_length      < 6259     to the right, agree=0.593, adj=0.054, (0 split)
##       description_length < 1938     to the left,  agree=0.581, adj=0.027, (0 split)
## 
## Node number 24219: 316 observations
##   mean=0.6962025, MSE=0.2115046 
## 
## Node number 24242: 11 observations
##   mean=0.3636364, MSE=0.231405 
## 
## Node number 24243: 13 observations
##   mean=0.9230769, MSE=0.07100592 
## 
## Node number 24290: 176 observations,    complexity param=0.0002656689
##   mean=0.6079545, MSE=0.2383458 
##   left son=48580 (95 obs) right son=48581 (81 obs)
##   Primary splits:
##       description_length < 3023     to the left,  improve=0.06307536, (0 missing)
##       social_media_count splits as  RLRL,         improve=0.03291345, (0 missing)
##       campaign_duration  < 27.695   to the right, improve=0.03253300, (0 missing)
##       reward_length      < 7085     to the right, improve=0.02485669, (0 missing)
##       mo_launched        splits as  LRRRLR-RLLL-, improve=0.01501230, (0 missing)
##   Surrogate splits:
##       reward_length     < 6734.5   to the left,  agree=0.636, adj=0.210, (0 split)
##       campaign_duration < 29.645   to the right, agree=0.614, adj=0.160, (0 split)
##       mo_launched       splits as  LLLRLL-LRLR-, agree=0.580, adj=0.086, (0 split)
##       goal              < 7250     to the right, agree=0.568, adj=0.062, (0 split)
##       category          splits as  ------R---L----, agree=0.562, adj=0.049, (0 split)
## 
## Node number 24291: 198 observations,    complexity param=0.0001383208
##   mean=0.7727273, MSE=0.1756198 
##   left son=48582 (13 obs) right son=48583 (185 obs)
##   Primary splits:
##       reward_length      < 5045.5   to the left,  improve=0.038747710, (0 missing)
##       social_media_count splits as  RLRR,         improve=0.035836040, (0 missing)
##       campaign_duration  < 25.46    to the left,  improve=0.021959150, (0 missing)
##       mo_launched        splits as  RRLLLL-LLRR-, improve=0.016196410, (0 missing)
##       description_length < 4918.5   to the right, improve=0.009636484, (0 missing)
## 
## Node number 24292: 264 observations,    complexity param=0.00011519
##   mean=0.6439394, MSE=0.2292815 
##   left son=48584 (11 obs) right son=48585 (253 obs)
##   Primary splits:
##       reward_length      < 11821    to the left,  improve=0.014899060, (0 missing)
##       campaign_duration  < 28.485   to the left,  improve=0.011205550, (0 missing)
##       goal               < 9725     to the right, improve=0.009658082, (0 missing)
##       description_length < 8518     to the left,  improve=0.008003916, (0 missing)
##       social_media_count splits as  RLLR,         improve=0.007459862, (0 missing)
## 
## Node number 24293: 320 observations,    complexity param=0.0001364298
##   mean=0.765625, MSE=0.1794434 
##   left son=48586 (47 obs) right son=48587 (273 obs)
##   Primary splits:
##       campaign_duration < 30.03    to the right, improve=0.021186890, (0 missing)
##       goal              < 7925     to the right, improve=0.012717340, (0 missing)
##       reward_length     < 7443.5   to the right, improve=0.010897560, (0 missing)
##       mo_launched       splits as  R-L-L---RLR-, improve=0.008282566, (0 missing)
##       category          splits as  ------R---L----, improve=0.007947455, (0 missing)
##   Surrogate splits:
##       mo_launched splits as  R-R-R---RLR-, agree=0.903, adj=0.34, (0 split)
## 
## Node number 24302: 45 observations,    complexity param=0.0001472365
##   mean=0.7777778, MSE=0.1728395 
##   left son=48604 (13 obs) right son=48605 (32 obs)
##   Primary splits:
##       reward_length      < 7232.5   to the left,  improve=0.23506180, (0 missing)
##       description_length < 2232.5   to the right, improve=0.08163265, (0 missing)
##       goal               < 6600     to the right, improve=0.04761905, (0 missing)
##       mo_launched        splits as  LRL--L-L-RLL, improve=0.03227655, (0 missing)
##       campaign_duration  < 21.02    to the left,  improve=0.01785714, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 12.835   to the left,  agree=0.733, adj=0.077, (0 split)
##       description_length < 1946     to the left,  agree=0.733, adj=0.077, (0 split)
## 
## Node number 24303: 100 observations
##   mean=0.97, MSE=0.0291 
## 
## Node number 24306: 36 observations,    complexity param=0.0001377486
##   mean=0.6111111, MSE=0.2376543 
##   left son=48612 (19 obs) right son=48613 (17 obs)
##   Primary splits:
##       description_length < 3159.5   to the left,  improve=0.16987660, (0 missing)
##       reward_length      < 6480.5   to the right, improve=0.15360500, (0 missing)
##       mo_launched        splits as  --RR-L------, improve=0.11338840, (0 missing)
##       campaign_duration  < 31.4     to the right, improve=0.08163265, (0 missing)
##       category           splits as  ------R---L----, improve=0.04489796, (0 missing)
##   Surrogate splits:
##       category           splits as  ------R---L----, agree=0.722, adj=0.412, (0 split)
##       campaign_duration  < 31.35    to the right, agree=0.694, adj=0.353, (0 split)
##       goal               < 9597     to the left,  agree=0.611, adj=0.176, (0 split)
##       reward_length      < 6480.5   to the right, agree=0.611, adj=0.176, (0 split)
##       social_media_count splits as  -LR-, agree=0.556, adj=0.059, (0 split)
## 
## Node number 24307: 24 observations
##   mean=0.9166667, MSE=0.07638889 
## 
## Node number 24746: 34 observations
##   mean=0.08823529, MSE=0.08044983 
## 
## Node number 24747: 120 observations,    complexity param=0.000116584
##   mean=0.225, MSE=0.174375 
##   left son=49494 (113 obs) right son=49495 (7 obs)
##   Primary splits:
##       campaign_duration  < 27.5     to the right, improve=0.14196000, (0 missing)
##       reward_length      < 2793.5   to the right, improve=0.03385817, (0 missing)
##       description_length < 861.5    to the left,  improve=0.03205261, (0 missing)
##       category           splits as  --------L---LR-, improve=0.02239157, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.02210989, (0 missing)
## 
## Node number 24792: 44 observations
##   mean=0.1590909, MSE=0.133781 
## 
## Node number 24793: 18 observations
##   mean=0.5, MSE=0.25 
## 
## Node number 24794: 11 observations
##   mean=0.1818182, MSE=0.1487603 
## 
## Node number 24795: 16 observations
##   mean=0.625, MSE=0.234375 
## 
## Node number 25186: 20 observations
##   mean=0.2, MSE=0.16 
## 
## Node number 25187: 10 observations
##   mean=0.6, MSE=0.24 
## 
## Node number 25188: 51 observations
##   mean=0.1568627, MSE=0.1322568 
## 
## Node number 25189: 91 observations,    complexity param=0.0001352428
##   mean=0.3296703, MSE=0.2209878 
##   left son=50378 (11 obs) right son=50379 (80 obs)
##   Primary splits:
##       goal               < 3800     to the right, improve=0.06762295, (0 missing)
##       reward_length      < 2499.5   to the left,  improve=0.05852521, (0 missing)
##       mo_launched        splits as  -LRL--LRLLLR, improve=0.05251366, (0 missing)
##       description_length < 949.5    to the left,  improve=0.04702716, (0 missing)
##       category           splits as  R---R-----L----, improve=0.03698145, (0 missing)
## 
## Node number 25190: 110 observations,    complexity param=0.0001331127
##   mean=0.3818182, MSE=0.2360331 
##   left son=50380 (73 obs) right son=50381 (37 obs)
##   Primary splits:
##       description_length < 1029.5   to the left,  improve=0.02352537, (0 missing)
##       campaign_duration  < 60.02    to the right, improve=0.02191636, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.01757939, (0 missing)
##       reward_length      < 3903.5   to the right, improve=0.01734131, (0 missing)
##       mo_launched        splits as  -RLR--LRRRRL, improve=0.01534031, (0 missing)
##   Surrogate splits:
##       campaign_duration < 60.02    to the left,  agree=0.682, adj=0.054, (0 split)
##       usa               < 0.5      to the right, agree=0.682, adj=0.054, (0 split)
##       mo_launched       splits as  -LRL--LLLLLL, agree=0.673, adj=0.027, (0 split)
## 
## Node number 25191: 16 observations
##   mean=0.6875, MSE=0.2148438 
## 
## Node number 25296: 16 observations
##   mean=0, MSE=0 
## 
## Node number 25297: 12 observations
##   mean=0.4166667, MSE=0.2430556 
## 
## Node number 25298: 21 observations,    complexity param=0.0001111043
##   mean=0.2380952, MSE=0.1814059 
##   left son=50596 (10 obs) right son=50597 (11 obs)
##   Primary splits:
##       reward_length      < 2438.5   to the left,  improve=0.284090900, (0 missing)
##       description_length < 693      to the right, improve=0.131363600, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.025000000, (0 missing)
##       campaign_duration  < 31.52    to the right, improve=0.025000000, (0 missing)
##       mo_launched        splits as  L----R-R-L--, improve=0.007272727, (0 missing)
##   Surrogate splits:
##       description_length < 693      to the right, agree=0.762, adj=0.5, (0 split)
##       mo_launched        splits as  R----L-L-R--, agree=0.667, adj=0.3, (0 split)
##       category           splits as  L---R-----R----, agree=0.619, adj=0.2, (0 split)
##       goal               < 1400     to the left,  agree=0.619, adj=0.2, (0 split)
##       campaign_duration  < 31.52    to the right, agree=0.571, adj=0.1, (0 split)
## 
## Node number 25299: 31 observations
##   mean=0.5483871, MSE=0.2476587 
## 
## Node number 25302: 24 observations,    complexity param=0.0001472286
##   mean=0.3333333, MSE=0.2222222 
##   left son=50604 (10 obs) right son=50605 (14 obs)
##   Primary splits:
##       campaign_duration  < 30.05    to the right, improve=0.35714290, (0 missing)
##       description_length < 990.5    to the left,  improve=0.30000000, (0 missing)
##       reward_length      < 1181     to the right, improve=0.09765625, (0 missing)
##       goal               < 1150     to the right, improve=0.08928571, (0 missing)
##       mo_launched        splits as  -L-RR-L----L, improve=0.03333333, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  -L-RR-R----R, agree=0.708, adj=0.3, (0 split)
##       reward_length      < 729.5    to the left,  agree=0.708, adj=0.3, (0 split)
##       usa                < 0.5      to the left,  agree=0.667, adj=0.2, (0 split)
##       video_status       < 0.5      to the left,  agree=0.667, adj=0.2, (0 split)
##       description_length < 983      to the left,  agree=0.667, adj=0.2, (0 split)
## 
## Node number 25303: 87 observations,    complexity param=0.0001472286
##   mean=0.5862069, MSE=0.2425684 
##   left son=50606 (65 obs) right son=50607 (22 obs)
##   Primary splits:
##       category           splits as  R---R-----L----, improve=0.04854312, (0 missing)
##       reward_length      < 1941     to the right, improve=0.04357997, (0 missing)
##       social_media_count splits as  RLLR, improve=0.02568018, (0 missing)
##       description_length < 1015     to the right, improve=0.02389988, (0 missing)
##       campaign_duration  < 29.98    to the left,  improve=0.02161283, (0 missing)
##   Surrogate splits:
##       campaign_duration < 70.725   to the left,  agree=0.782, adj=0.136, (0 split)
##       goal              < 937.5    to the right, agree=0.770, adj=0.091, (0 split)
##       reward_length     < 1722.5   to the right, agree=0.759, adj=0.045, (0 split)
## 
## Node number 25388: 17 observations
##   mean=0.1764706, MSE=0.1453287 
## 
## Node number 25389: 23 observations
##   mean=0.5217391, MSE=0.2495274 
## 
## Node number 25394: 45 observations,    complexity param=0.0001283621
##   mean=0.4222222, MSE=0.2439506 
##   left son=50788 (37 obs) right son=50789 (8 obs)
##   Primary splits:
##       description_length < 1405.5   to the right, improve=0.09522377, (0 missing)
##       reward_length      < 1739     to the right, improve=0.09011829, (0 missing)
##       campaign_duration  < 35.685   to the right, improve=0.08696373, (0 missing)
##       goal               < 1450     to the left,  improve=0.02184386, (0 missing)
##       category           splits as  L---R-----R----, improve=0.01044679, (0 missing)
## 
## Node number 25395: 10 observations
##   mean=1, MSE=0 
## 
## Node number 25546: 7 observations
##   mean=0.2857143, MSE=0.2040816 
## 
## Node number 25547: 47 observations,    complexity param=0.0001003836
##   mean=0.6382979, MSE=0.2308737 
##   left son=51094 (9 obs) right son=51095 (38 obs)
##   Primary splits:
##       social_media_count splits as  RLRL,         improve=0.09540764, (0 missing)
##       campaign_duration  < 30.95    to the right, improve=0.05174341, (0 missing)
##       goal               < 1600     to the right, improve=0.04282531, (0 missing)
##       description_length < 2028.5   to the left,  improve=0.04003268, (0 missing)
##       reward_length      < 3149.5   to the left,  improve=0.03630252, (0 missing)
## 
## Node number 25554: 16 observations
##   mean=0.375, MSE=0.234375 
## 
## Node number 25555: 42 observations,    complexity param=0.0001191837
##   mean=0.6904762, MSE=0.2137188 
##   left son=51110 (15 obs) right son=51111 (27 obs)
##   Primary splits:
##       reward_length      < 3826.5   to the left,  improve=0.13020930, (0 missing)
##       campaign_duration  < 35.435   to the left,  improve=0.12225710, (0 missing)
##       mo_launched        splits as  -L--LL-R--L-, improve=0.12225710, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.03994383, (0 missing)
##       description_length < 3229     to the right, improve=0.03491836, (0 missing)
##   Surrogate splits:
##       description_length < 3309     to the right, agree=0.738, adj=0.267, (0 split)
##       goal               < 936.5    to the left,  agree=0.690, adj=0.133, (0 split)
## 
## Node number 25578: 35 observations,    complexity param=0.0001336597
##   mean=0.5142857, MSE=0.2497959 
##   left son=51156 (24 obs) right son=51157 (11 obs)
##   Primary splits:
##       description_length < 1292     to the right, improve=0.1694519, (0 missing)
##       campaign_duration  < 30.02    to the right, improve=0.1581699, (0 missing)
##       mo_launched        splits as  R-LR--L-RL-L, improve=0.1440632, (0 missing)
##       goal               < 1450     to the right, improve=0.1160486, (0 missing)
##       category           splits as  L---L-----R----, improve=0.1070633, (0 missing)
##   Surrogate splits:
##       campaign_duration < 45.02    to the left,  agree=0.743, adj=0.182, (0 split)
##       mo_launched       splits as  L-LR--L-LL-L, agree=0.743, adj=0.182, (0 split)
## 
## Node number 25579: 172 observations,    complexity param=0.0001336597
##   mean=0.7209302, MSE=0.2011898 
##   left son=51158 (74 obs) right son=51159 (98 obs)
##   Primary splits:
##       campaign_duration  < 30.015   to the left,  improve=0.02762642, (0 missing)
##       description_length < 4120.5   to the right, improve=0.02097947, (0 missing)
##       goal               < 3225     to the left,  improve=0.02097128, (0 missing)
##       reward_length      < 3578     to the left,  improve=0.01931913, (0 missing)
##       mo_launched        splits as  L-RR--L-LR-R, improve=0.01383076, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  R-LR--L-LR-R, agree=0.628, adj=0.135, (0 split)
##       description_length < 1771     to the left,  agree=0.605, adj=0.081, (0 split)
##       reward_length      < 3506.5   to the right, agree=0.599, adj=0.068, (0 split)
##       social_media_count splits as  RRRL,         agree=0.576, adj=0.014, (0 split)
## 
## Node number 25580: 13 observations
##   mean=0.3846154, MSE=0.2366864 
## 
## Node number 25581: 42 observations
##   mean=0.8333333, MSE=0.1388889 
## 
## Node number 25698: 20 observations
##   mean=0.25, MSE=0.1875 
## 
## Node number 25699: 35 observations,    complexity param=0.0001040375
##   mean=0.4857143, MSE=0.2497959 
##   left son=51398 (27 obs) right son=51399 (8 obs)
##   Primary splits:
##       description_length < 575      to the right, improve=0.17975370, (0 missing)
##       category           splits as  L-------R-L-RL-, improve=0.06839064, (0 missing)
##       social_media_count splits as  LRR-, improve=0.04537456, (0 missing)
##       reward_length      < 1988.5   to the right, improve=0.04003268, (0 missing)
##       mo_launched        splits as  ----R-LRL--L, improve=0.03977558, (0 missing)
##   Surrogate splits:
##       category splits as  L-------R-L-LL-, agree=0.8, adj=0.125, (0 split)
## 
## Node number 25826: 97 observations,    complexity param=0.0001369433
##   mean=0.443299, MSE=0.246785 
##   left son=51652 (62 obs) right son=51653 (35 obs)
##   Primary splits:
##       description_length < 865.5    to the left,  improve=0.05616960, (0 missing)
##       campaign_duration  < 29.885   to the left,  improve=0.02844838, (0 missing)
##       goal               < 625      to the right, improve=0.02161258, (0 missing)
##       category           splits as  R---L---R-R-L--, improve=0.01785463, (0 missing)
##       reward_length      < 3179.5   to the left,  improve=0.01316912, (0 missing)
##   Surrogate splits:
##       campaign_duration < 46.635   to the left,  agree=0.691, adj=0.143, (0 split)
##       usa               < 0.5      to the right, agree=0.660, adj=0.057, (0 split)
##       mo_launched       splits as  LR--LLL-LLLL, agree=0.660, adj=0.057, (0 split)
##       category          splits as  L---R---L-L-L--, agree=0.649, adj=0.029, (0 split)
##       goal              < 62.5     to the right, agree=0.649, adj=0.029, (0 split)
## 
## Node number 25827: 33 observations
##   mean=0.6666667, MSE=0.2222222 
## 
## Node number 26020: 12 observations
##   mean=0.25, MSE=0.1875 
## 
## Node number 26021: 8 observations
##   mean=0.75, MSE=0.1875 
## 
## Node number 26032: 8 observations
##   mean=0.125, MSE=0.109375 
## 
## Node number 26033: 14 observations
##   mean=0.7857143, MSE=0.1683673 
## 
## Node number 29080: 8 observations
##   mean=0, MSE=0 
## 
## Node number 29081: 160 observations,    complexity param=0.0001170814
##   mean=0.44375, MSE=0.2468359 
##   left son=58162 (7 obs) right son=58163 (153 obs)
##   Primary splits:
##       campaign_duration  < 17.665   to the left,  improve=0.016781160, (0 missing)
##       reward_length      < 4364     to the left,  improve=0.014146420, (0 missing)
##       description_length < 1847.5   to the left,  improve=0.013986510, (0 missing)
##       goal               < 2550     to the right, improve=0.010376400, (0 missing)
##       usa                < 0.5      to the left,  improve=0.004629229, (0 missing)
## 
## Node number 29084: 39 observations,    complexity param=0.0001170214
##   mean=0.4615385, MSE=0.2485207 
##   left son=58168 (8 obs) right son=58169 (31 obs)
##   Primary splits:
##       description_length < 1209     to the right, improve=0.11760750, (0 missing)
##       reward_length      < 4599.5   to the left,  improve=0.04646697, (0 missing)
##       goal               < 1625     to the right, improve=0.02774578, (0 missing)
##       mo_launched        splits as  RL-R---L--L-, improve=0.02721088, (0 missing)
##       campaign_duration  < 30.02    to the left,  improve=0.02652851, (0 missing)
##   Surrogate splits:
##       campaign_duration < 45.985   to the right, agree=0.821, adj=0.125, (0 split)
## 
## Node number 29085: 50 observations,    complexity param=0.0001264738
##   mean=0.66, MSE=0.2244 
##   left son=58170 (35 obs) right son=58171 (15 obs)
##   Primary splits:
##       reward_length      < 4675     to the right, improve=0.142687400, (0 missing)
##       description_length < 1834     to the right, improve=0.092818950, (0 missing)
##       campaign_duration  < 30.02    to the left,  improve=0.054257880, (0 missing)
##       goal               < 2865.5   to the left,  improve=0.024178440, (0 missing)
##       mo_launched        splits as  RL-R---R--L-, improve=0.002206223, (0 missing)
##   Surrogate splits:
##       goal               < 3837.5   to the left,  agree=0.74, adj=0.133, (0 split)
##       description_length < 1426.5   to the right, agree=0.74, adj=0.133, (0 split)
##       campaign_duration  < 23.1     to the right, agree=0.72, adj=0.067, (0 split)
## 
## Node number 29160: 51 observations,    complexity param=0.0001348783
##   mean=0.4313725, MSE=0.2452903 
##   left son=58320 (13 obs) right son=58321 (38 obs)
##   Primary splits:
##       description_length < 1579     to the right, improve=0.10742070, (0 missing)
##       mo_launched        splits as  -LLLRRR-RR--, improve=0.08789486, (0 missing)
##       reward_length      < 5134.5   to the right, improve=0.07119359, (0 missing)
##       goal               < 1800.5   to the right, improve=0.01959248, (0 missing)
##       social_media_count splits as  LRL-,         improve=0.01459105, (0 missing)
##   Surrogate splits:
##       reward_length      < 4875.5   to the right, agree=0.784, adj=0.154, (0 split)
##       campaign_duration  < 11.685   to the left,  agree=0.765, adj=0.077, (0 split)
##       social_media_count splits as  RRL-,         agree=0.765, adj=0.077, (0 split)
## 
## Node number 29161: 8 observations
##   mean=0.875, MSE=0.109375 
## 
## Node number 29164: 16 observations
##   mean=0.375, MSE=0.234375 
## 
## Node number 29165: 16 observations
##   mean=0.75, MSE=0.1875 
## 
## Node number 29166: 73 observations
##   mean=0.6712329, MSE=0.2206793 
## 
## Node number 29167: 31 observations
##   mean=0.9354839, MSE=0.0603538 
## 
## Node number 29232: 8 observations
##   mean=0, MSE=0 
## 
## Node number 29233: 42 observations,    complexity param=0.0001183039
##   mean=0.4285714, MSE=0.244898 
##   left son=58466 (12 obs) right son=58467 (30 obs)
##   Primary splits:
##       goal               < 776.5    to the left,  improve=0.11203700, (0 missing)
##       mo_launched        splits as  L-L--RR-R-R-, improve=0.05208333, (0 missing)
##       campaign_duration  < 31.615   to the right, improve=0.04290618, (0 missing)
##       description_length < 1707     to the left,  improve=0.03912037, (0 missing)
##       reward_length      < 6954.5   to the right, improve=0.03385417, (0 missing)
##   Surrogate splits:
##       reward_length < 8336     to the right, agree=0.738, adj=0.083, (0 split)
## 
## Node number 29234: 13 observations
##   mean=0.4615385, MSE=0.2485207 
## 
## Node number 29235: 7 observations
##   mean=1, MSE=0 
## 
## Node number 29748: 19 observations
##   mean=0.1578947, MSE=0.132964 
## 
## Node number 29749: 15 observations
##   mean=0.5333333, MSE=0.2488889 
## 
## Node number 29756: 37 observations
##   mean=0.4324324, MSE=0.2454346 
## 
## Node number 29757: 14 observations
##   mean=0.7857143, MSE=0.1683673 
## 
## Node number 29786: 38 observations,    complexity param=0.0001178388
##   mean=0.3947368, MSE=0.2389197 
##   left son=59572 (15 obs) right son=59573 (23 obs)
##   Primary splits:
##       description_length < 4581     to the left,  improve=0.18652380, (0 missing)
##       reward_length      < 5709.5   to the left,  improve=0.06871052, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.05996126, (0 missing)
##       goal               < 3400     to the left,  improve=0.04495875, (0 missing)
##       campaign_duration  < 32.95    to the right, improve=0.02538428, (0 missing)
##   Surrogate splits:
##       reward_length     < 5216.5   to the left,  agree=0.711, adj=0.267, (0 split)
##       video_status      < 0.5      to the left,  agree=0.684, adj=0.200, (0 split)
##       campaign_duration < 27.635   to the left,  agree=0.658, adj=0.133, (0 split)
## 
## Node number 29787: 23 observations
##   mean=0.7391304, MSE=0.1928166 
## 
## Node number 30226: 375 observations,    complexity param=0.0001737559
##   mean=0.552, MSE=0.247296 
##   left son=60452 (160 obs) right son=60453 (215 obs)
##   Primary splits:
##       mo_launched        splits as  RRLRLRLRLRRL, improve=0.015063200, (0 missing)
##       campaign_duration  < 54.12    to the right, improve=0.012852290, (0 missing)
##       category           splits as  R-------L---L--, improve=0.010902360, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.007833143, (0 missing)
##       description_length < 2755     to the right, improve=0.007325236, (0 missing)
##   Surrogate splits:
##       goal               < 2842.395 to the left,  agree=0.587, adj=0.031, (0 split)
##       reward_length      < 12086.5  to the right, agree=0.587, adj=0.031, (0 split)
##       description_length < 2163.5   to the left,  agree=0.584, adj=0.025, (0 split)
##       social_media_count splits as  RRLL,         agree=0.581, adj=0.019, (0 split)
##       campaign_duration  < 59.98    to the right, agree=0.579, adj=0.012, (0 split)
## 
## Node number 30227: 20 observations
##   mean=0.8, MSE=0.16 
## 
## Node number 30384: 148 observations,    complexity param=0.0001427238
##   mean=0.5878378, MSE=0.2422845 
##   left son=60768 (9 obs) right son=60769 (139 obs)
##   Primary splits:
##       description_length < 4346     to the right, improve=0.03572330, (0 missing)
##       mo_launched        splits as  -LLLRLLRLR--, improve=0.03420978, (0 missing)
##       reward_length      < 15619.5  to the left,  improve=0.03127422, (0 missing)
##       goal               < 1155.555 to the right, improve=0.02387791, (0 missing)
##       campaign_duration  < 14.5     to the right, improve=0.02194844, (0 missing)
## 
## Node number 30385: 21 observations
##   mean=0.9047619, MSE=0.0861678 
## 
## Node number 30396: 15 observations
##   mean=0.5333333, MSE=0.2488889 
## 
## Node number 30397: 7 observations
##   mean=1, MSE=0 
## 
## Node number 30924: 74 observations,    complexity param=0.0001127008
##   mean=0.5, MSE=0.25 
##   left son=61848 (35 obs) right son=61849 (39 obs)
##   Primary splits:
##       mo_launched        splits as  ---RLRR-RL-L, improve=0.05934066, (0 missing)
##       description_length < 1363     to the right, improve=0.04000000, (0 missing)
##       category           splits as  ----R-----L--L-, improve=0.03607504, (0 missing)
##       reward_length      < 5306.5   to the left,  improve=0.01970055, (0 missing)
##       goal               < 475      to the right, improve=0.01298701, (0 missing)
##   Surrogate splits:
##       category           splits as  ----R-----L--L-, agree=0.595, adj=0.143, (0 split)
##       reward_length      < 4950.5   to the right, agree=0.581, adj=0.114, (0 split)
##       campaign_duration  < 30.02    to the right, agree=0.568, adj=0.086, (0 split)
##       goal               < 225      to the left,  agree=0.568, adj=0.086, (0 split)
##       description_length < 925      to the left,  agree=0.568, adj=0.086, (0 split)
## 
## Node number 30925: 34 observations,    complexity param=0.0001127396
##   mean=0.7058824, MSE=0.2076125 
##   left son=61850 (19 obs) right son=61851 (15 obs)
##   Primary splits:
##       campaign_duration  < 20.985   to the left,  improve=0.19672510, (0 missing)
##       mo_launched        splits as  ---LRLL-LR-L, improve=0.12820510, (0 missing)
##       description_length < 2398.5   to the left,  improve=0.10802470, (0 missing)
##       goal               < 950      to the right, improve=0.03368421, (0 missing)
##       reward_length      < 4736.5   to the left,  improve=0.01339286, (0 missing)
##   Surrogate splits:
##       goal               < 700      to the right, agree=0.706, adj=0.333, (0 split)
##       reward_length      < 6179     to the left,  agree=0.676, adj=0.267, (0 split)
##       mo_launched        splits as  ---LRLL-LR-L, agree=0.618, adj=0.133, (0 split)
##       description_length < 1387     to the left,  agree=0.618, adj=0.133, (0 split)
##       social_media_count splits as  L-LR,         agree=0.588, adj=0.067, (0 split)
## 
## Node number 31116: 14 observations
##   mean=0.2857143, MSE=0.2040816 
## 
## Node number 31117: 8 observations
##   mean=0.875, MSE=0.109375 
## 
## Node number 31118: 80 observations,    complexity param=0.0001347957
##   mean=0.65, MSE=0.2275 
##   left son=62236 (16 obs) right son=62237 (64 obs)
##   Primary splits:
##       goal               < 819      to the left,  improve=0.08310440, (0 missing)
##       description_length < 2113     to the left,  improve=0.05860806, (0 missing)
##       reward_length      < 7341.5   to the left,  improve=0.02677033, (0 missing)
##       campaign_duration  < 46.405   to the left,  improve=0.02472527, (0 missing)
##       mo_launched        splits as  -RRLRRLR-R--, improve=0.01465201, (0 missing)
## 
## Node number 31119: 17 observations
##   mean=1, MSE=0 
## 
## Node number 31988: 18 observations
##   mean=0.3888889, MSE=0.2376543 
## 
## Node number 31989: 90 observations
##   mean=0.7555556, MSE=0.1846914 
## 
## Node number 32002: 9 observations
##   mean=0.1111111, MSE=0.09876543 
## 
## Node number 32003: 25 observations
##   mean=0.56, MSE=0.2464 
## 
## Node number 32020: 8 observations
##   mean=0.25, MSE=0.1875 
## 
## Node number 32021: 179 observations,    complexity param=0.0001309726
##   mean=0.6703911, MSE=0.2209669 
##   left son=64042 (61 obs) right son=64043 (118 obs)
##   Primary splits:
##       mo_launched        splits as  -RR--RLL--R-, improve=0.02184036, (0 missing)
##       goal               < 942.5    to the left,  improve=0.01468970, (0 missing)
##       category           splits as  ----L-R---L--R-, improve=0.01353631, (0 missing)
##       campaign_duration  < 23.325   to the right, improve=0.01313834, (0 missing)
##       description_length < 1105     to the left,  improve=0.01143828, (0 missing)
##   Surrogate splits:
##       goal               < 725      to the left,  agree=0.676, adj=0.049, (0 split)
##       campaign_duration  < 33.635   to the right, agree=0.670, adj=0.033, (0 split)
##       reward_length      < 4233.5   to the left,  agree=0.670, adj=0.033, (0 split)
##       description_length < 1119.5   to the right, agree=0.665, adj=0.016, (0 split)
## 
## Node number 32036: 61 observations,    complexity param=0.0001049023
##   mean=0.5409836, MSE=0.2483203 
##   left son=64072 (25 obs) right son=64073 (36 obs)
##   Primary splits:
##       description_length < 911      to the left,  improve=0.09160173, (0 missing)
##       mo_launched        splits as  R--LR---LL-R, improve=0.05558562, (0 missing)
##       goal               < 3100     to the right, improve=0.04252437, (0 missing)
##       campaign_duration  < 31.02    to the right, improve=0.02786501, (0 missing)
##       reward_length      < 6231.5   to the left,  improve=0.02318560, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  R--RR---RL-R, agree=0.656, adj=0.16, (0 split)
##       campaign_duration  < 30.02    to the right, agree=0.639, adj=0.12, (0 split)
##       social_media_count splits as  RLRR,         agree=0.639, adj=0.12, (0 split)
##       goal               < 3100     to the right, agree=0.623, adj=0.08, (0 split)
##       reward_length      < 5003.5   to the left,  agree=0.623, adj=0.08, (0 split)
## 
## Node number 32037: 18 observations
##   mean=0.7777778, MSE=0.1728395 
## 
## Node number 32274: 7 observations
##   mean=0.2857143, MSE=0.2040816 
## 
## Node number 32275: 83 observations,    complexity param=0.0001032747
##   mean=0.6626506, MSE=0.2235448 
##   left son=64550 (9 obs) right son=64551 (74 obs)
##   Primary splits:
##       reward_length      < 8081.5   to the right, improve=0.05900316, (0 missing)
##       mo_launched        splits as  ----LRLRL--L, improve=0.03902684, (0 missing)
##       campaign_duration  < 52.015   to the right, improve=0.02401186, (0 missing)
##       description_length < 1233     to the right, improve=0.02082485, (0 missing)
##       goal               < 1100     to the left,  improve=0.02000183, (0 missing)
## 
## Node number 32276: 92 observations,    complexity param=0.0001199014
##   mean=0.5869565, MSE=0.2424386 
##   left son=64552 (63 obs) right son=64553 (29 obs)
##   Primary splits:
##       description_length < 2728.5   to the left,  improve=0.055951930, (0 missing)
##       campaign_duration  < 56.69    to the right, improve=0.055309430, (0 missing)
##       reward_length      < 4985.5   to the right, improve=0.030825430, (0 missing)
##       goal               < 1185     to the left,  improve=0.029548960, (0 missing)
##       social_media_count splits as  LRL-,         improve=0.005847953, (0 missing)
##   Surrogate splits:
##       goal              < 3750     to the left,  agree=0.728, adj=0.138, (0 split)
##       campaign_duration < 45.1     to the left,  agree=0.696, adj=0.034, (0 split)
##       mo_launched       splits as  ----LLLLR--L, agree=0.696, adj=0.034, (0 split)
## 
## Node number 32277: 508 observations,    complexity param=0.0001199014
##   mean=0.7125984, MSE=0.2048019 
##   left son=64554 (156 obs) right son=64555 (352 obs)
##   Primary splits:
##       reward_length      < 7581.5   to the right, improve=0.009188482, (0 missing)
##       campaign_duration  < 33.01    to the right, improve=0.007355256, (0 missing)
##       description_length < 3270.5   to the right, improve=0.004764916, (0 missing)
##       goal               < 3333.165 to the right, improve=0.004336403, (0 missing)
##       mo_launched        splits as  ----RLRRL--R, improve=0.003248915, (0 missing)
##   Surrogate splits:
##       social_media_count splits as  RRRL,         agree=0.701, adj=0.026, (0 split)
##       description_length < 6632     to the right, agree=0.695, adj=0.006, (0 split)
## 
## Node number 32280: 352 observations,    complexity param=0.00011046
##   mean=0.7102273, MSE=0.2058045 
##   left son=64560 (7 obs) right son=64561 (345 obs)
##   Primary splits:
##       reward_length      < 8892.5   to the right, improve=0.007820988, (0 missing)
##       description_length < 5854.5   to the left,  improve=0.007308574, (0 missing)
##       category           splits as  ----------R--L-, improve=0.005724853, (0 missing)
##       mo_launched        splits as  LRRL-----LR-, improve=0.005575895, (0 missing)
##       campaign_duration  < 73.75    to the right, improve=0.004255534, (0 missing)
## 
## Node number 32281: 8 observations
##   mean=1, MSE=0 
## 
## Node number 32282: 76 observations,    complexity param=0.0001054231
##   mean=0.7368421, MSE=0.1939058 
##   left son=64564 (55 obs) right son=64565 (21 obs)
##   Primary splits:
##       mo_launched        splits as  LLRL-----LR-, improve=0.091478050, (0 missing)
##       campaign_duration  < 31.005   to the right, improve=0.027964160, (0 missing)
##       description_length < 3403     to the left,  improve=0.025894110, (0 missing)
##       reward_length      < 5510     to the right, improve=0.016043600, (0 missing)
##       goal               < 1012.5   to the left,  improve=0.009131494, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 53.045   to the left,  agree=0.75, adj=0.095, (0 split)
##       category           splits as  ----------L--R-, agree=0.75, adj=0.095, (0 split)
##       description_length < 1178.5   to the right, agree=0.75, adj=0.095, (0 split)
## 
## Node number 32283: 72 observations
##   mean=0.875, MSE=0.109375 
## 
## Node number 32284: 16 observations
##   mean=0.4375, MSE=0.2460938 
## 
## Node number 32285: 25 observations
##   mean=0.8, MSE=0.16 
## 
## Node number 32320: 8 observations
##   mean=0, MSE=0 
## 
## Node number 32321: 23 observations,    complexity param=0.0001482642
##   mean=0.4782609, MSE=0.2495274 
##   left son=64642 (8 obs) right son=64643 (15 obs)
##   Primary splits:
##       goal               < 1475     to the left,  improve=0.26672980, (0 missing)
##       reward_length      < 6801     to the left,  improve=0.15782830, (0 missing)
##       campaign_duration  < 49.06    to the left,  improve=0.15782830, (0 missing)
##       mo_launched        splits as  --RL-LRLRR--, improve=0.11136360, (0 missing)
##       description_length < 1344     to the left,  improve=0.06500271, (0 missing)
##   Surrogate splits:
##       description_length < 1199.5   to the left,  agree=0.783, adj=0.375, (0 split)
##       campaign_duration  < 44.98    to the left,  agree=0.739, adj=0.250, (0 split)
##       reward_length      < 5735     to the left,  agree=0.739, adj=0.250, (0 split)
##       mo_launched        splits as  --RR-RRLRR--, agree=0.696, adj=0.125, (0 split)
##       category           splits as  ---RL-R--------, agree=0.696, adj=0.125, (0 split)
## 
## Node number 32322: 62 observations,    complexity param=0.0001197088
##   mean=0.5483871, MSE=0.2476587 
##   left son=64644 (48 obs) right son=64645 (14 obs)
##   Primary splits:
##       campaign_duration  < 30.09    to the left,  improve=0.06633278, (0 missing)
##       reward_length      < 7529     to the right, improve=0.05797929, (0 missing)
##       goal               < 1650     to the right, improve=0.03953877, (0 missing)
##       mo_launched        splits as  ----R-RRLL--, improve=0.03073269, (0 missing)
##       description_length < 1241.5   to the left,  improve=0.01798358, (0 missing)
##   Surrogate splits:
##       description_length < 1160.5   to the right, agree=0.806, adj=0.143, (0 split)
##       category           splits as  --R-L-L--------, agree=0.790, adj=0.071, (0 split)
## 
## Node number 32323: 27 observations
##   mean=0.8518519, MSE=0.1262003 
## 
## Node number 32334: 36 observations,    complexity param=0.0001232028
##   mean=0.6388889, MSE=0.2307099 
##   left son=64668 (11 obs) right son=64669 (25 obs)
##   Primary splits:
##       goal               < 2375     to the right, improve=0.14449380, (0 missing)
##       reward_length      < 4917.5   to the left,  improve=0.08361204, (0 missing)
##       social_media_count splits as  LR--,         improve=0.06903966, (0 missing)
##       description_length < 1389     to the left,  improve=0.05462653, (0 missing)
##       campaign_duration  < 30.98    to the left,  improve=0.03010033, (0 missing)
##   Surrogate splits:
##       description_length < 1877.5   to the right, agree=0.722, adj=0.091, (0 split)
## 
## Node number 32335: 112 observations
##   mean=0.9017857, MSE=0.08856824 
## 
## Node number 32352: 23 observations,    complexity param=0.0001251217
##   mean=0.3478261, MSE=0.2268431 
##   left son=64704 (9 obs) right son=64705 (14 obs)
##   Primary splits:
##       description_length < 2768     to the left,  improve=0.34285710, (0 missing)
##       reward_length      < 8383.5   to the left,  improve=0.11136360, (0 missing)
##       campaign_duration  < 39.615   to the right, improve=0.08102679, (0 missing)
##       goal               < 2900     to the left,  improve=0.08102679, (0 missing)
##       mo_launched        splits as  LR---RLR-LRL, improve=0.05444444, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  LR---RLR-RRR, agree=0.739, adj=0.333, (0 split)
##       social_media_count splits as  RRL-,         agree=0.696, adj=0.222, (0 split)
##       campaign_duration  < 39.615   to the right, agree=0.652, adj=0.111, (0 split)
##       reward_length      < 8816.5   to the right, agree=0.652, adj=0.111, (0 split)
## 
## Node number 32353: 16 observations
##   mean=0.6875, MSE=0.2148438 
## 
## Node number 32368: 27 observations
##   mean=0.4444444, MSE=0.2469136 
## 
## Node number 32369: 44 observations,    complexity param=0.0001289536
##   mean=0.7954545, MSE=0.1627066 
##   left son=64738 (22 obs) right son=64739 (22 obs)
##   Primary splits:
##       reward_length      < 6621.5   to the right, improve=0.15555560, (0 missing)
##       mo_launched        splits as  -LLL-R-RLRRR, improve=0.10835980, (0 missing)
##       campaign_duration  < 30.52    to the left,  improve=0.08217312, (0 missing)
##       goal               < 750      to the left,  improve=0.05835632, (0 missing)
##       description_length < 3113     to the left,  improve=0.04666667, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  -LRL-L-RLRRR, agree=0.727, adj=0.455, (0 split)
##       campaign_duration  < 30.52    to the left,  agree=0.659, adj=0.318, (0 split)
##       social_media_count splits as  LRR-,         agree=0.568, adj=0.136, (0 split)
##       goal               < 750      to the left,  agree=0.568, adj=0.136, (0 split)
##       description_length < 2511.5   to the right, agree=0.568, adj=0.136, (0 split)
## 
## Node number 32372: 101 observations,    complexity param=0.0001591987
##   mean=0.7128713, MSE=0.2046858 
##   left son=64744 (16 obs) right son=64745 (85 obs)
##   Primary splits:
##       reward_length      < 7484     to the right, improve=0.10498230, (0 missing)
##       campaign_duration  < 59.21    to the right, improve=0.06638310, (0 missing)
##       social_media_count splits as  RLRL, improve=0.06165127, (0 missing)
##       category           splits as  -R--R-L--R-----, improve=0.02735849, (0 missing)
##       description_length < 2571.5   to the right, improve=0.01890625, (0 missing)
##   Surrogate splits:
##       social_media_count splits as  RRRL, agree=0.851, adj=0.063, (0 split)
## 
## Node number 32373: 145 observations
##   mean=0.8965517, MSE=0.09274673 
## 
## Node number 32400: 88 observations,    complexity param=0.0001237837
##   mean=0.6136364, MSE=0.2370868 
##   left son=64800 (30 obs) right son=64801 (58 obs)
##   Primary splits:
##       reward_length      < 11189    to the right, improve=0.04712393, (0 missing)
##       mo_launched        splits as  ---RL-L-RLL-, improve=0.04481793, (0 missing)
##       goal               < 3980     to the left,  improve=0.03558460, (0 missing)
##       description_length < 3389     to the left,  improve=0.02881264, (0 missing)
##       social_media_count splits as  L-RL,         improve=0.02306805, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  ---RL-R-RRR-, agree=0.67, adj=0.033, (0 split)
##       description_length < 1326     to the left,  agree=0.67, adj=0.033, (0 split)
## 
## Node number 32401: 41 observations
##   mean=0.804878, MSE=0.1570494 
## 
## Node number 41402: 43 observations
##   mean=0.1395349, MSE=0.1200649 
## 
## Node number 41403: 36 observations,    complexity param=0.0001173533
##   mean=0.3611111, MSE=0.2307099 
##   left son=82806 (20 obs) right son=82807 (16 obs)
##   Primary splits:
##       description_length < 3508.5   to the left,  improve=0.24147160, (0 missing)
##       campaign_duration  < 30.825   to the left,  improve=0.07705730, (0 missing)
##       reward_length      < 8596     to the right, improve=0.04648105, (0 missing)
##       mo_launched        splits as  --RR-RRLLR-L, improve=0.04327245, (0 missing)
##       category           splits as  L-------R------, improve=0.01664944, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  --LR-RRRLL-L, agree=0.694, adj=0.312, (0 split)
##       campaign_duration  < 30.825   to the left,  agree=0.639, adj=0.187, (0 split)
##       category           splits as  L-------R------, agree=0.639, adj=0.187, (0 split)
##       reward_length      < 8596     to the right, agree=0.639, adj=0.187, (0 split)
##       social_media_count splits as  LLR-, agree=0.583, adj=0.063, (0 split)
## 
## Node number 41406: 66 observations,    complexity param=0.0001022147
##   mean=0.4242424, MSE=0.2442608 
##   left son=82812 (33 obs) right son=82813 (33 obs)
##   Primary splits:
##       reward_length      < 8455     to the left,  improve=0.06015038, (0 missing)
##       description_length < 3510     to the right, improve=0.04162667, (0 missing)
##       campaign_duration  < 32       to the right, improve=0.02819549, (0 missing)
##       mo_launched        splits as  ---R-RLR-R-L, improve=0.01635808, (0 missing)
##       goal               < 29999.5  to the right, improve=0.01364078, (0 missing)
##   Surrogate splits:
##       goal               < 26500    to the left,  agree=0.621, adj=0.242, (0 split)
##       campaign_duration  < 35.24    to the right, agree=0.606, adj=0.212, (0 split)
##       mo_launched        splits as  ---R-LRR-L-L, agree=0.606, adj=0.212, (0 split)
##       description_length < 2744     to the left,  agree=0.576, adj=0.152, (0 split)
##       category           splits as  ------------RL-, agree=0.561, adj=0.121, (0 split)
## 
## Node number 41407: 12 observations
##   mean=0.6666667, MSE=0.2222222 
## 
## Node number 41418: 73 observations,    complexity param=0.0001009297
##   mean=0.2191781, MSE=0.1711391 
##   left son=82836 (66 obs) right son=82837 (7 obs)
##   Primary splits:
##       mo_launched       splits as  RL--L-L---L-, improve=0.07689679, (0 missing)
##       campaign_duration < 26.615   to the right, improve=0.04169712, (0 missing)
##       video_status      < 0.5      to the right, improve=0.04169712, (0 missing)
##       reward_length     < 7212     to the left,  improve=0.03664931, (0 missing)
##       goal              < 11750    to the left,  improve=0.03389487, (0 missing)
## 
## Node number 41419: 17 observations
##   mean=0.5294118, MSE=0.2491349 
## 
## Node number 41422: 18 observations
##   mean=0.3888889, MSE=0.2376543 
## 
## Node number 41423: 8 observations
##   mean=0.875, MSE=0.109375 
## 
## Node number 41462: 13 observations
##   mean=0.5384615, MSE=0.2485207 
## 
## Node number 41463: 8 observations
##   mean=1, MSE=0 
## 
## Node number 41672: 13 observations
##   mean=0, MSE=0 
## 
## Node number 41673: 7 observations
##   mean=0.5714286, MSE=0.244898 
## 
## Node number 41674: 34 observations
##   mean=0.3823529, MSE=0.2361592 
## 
## Node number 41675: 12 observations
##   mean=0.75, MSE=0.1875 
## 
## Node number 41862: 61 observations,    complexity param=0.0001089864
##   mean=0.3934426, MSE=0.2386455 
##   left son=83724 (10 obs) right son=83725 (51 obs)
##   Primary splits:
##       reward_length      < 6752.5   to the left,  improve=0.07074943, (0 missing)
##       campaign_duration  < 31.06    to the left,  improve=0.04258164, (0 missing)
##       usa                < 0.5      to the right, improve=0.03391393, (0 missing)
##       goal               < 93950    to the left,  improve=0.01720768, (0 missing)
##       description_length < 10332    to the left,  improve=0.01417242, (0 missing)
## 
## Node number 41863: 8 observations
##   mean=0.75, MSE=0.1875 
## 
## Node number 42544: 127 observations,    complexity param=0.0001049444
##   mean=0.2440945, MSE=0.1845124 
##   left son=85088 (67 obs) right son=85089 (60 obs)
##   Primary splits:
##       description_length < 2260.5   to the right, improve=0.038650830, (0 missing)
##       reward_length      < 6703     to the left,  improve=0.031844830, (0 missing)
##       mo_launched        splits as  L-R--RR--R-R, improve=0.025761840, (0 missing)
##       campaign_duration  < 30.095   to the left,  improve=0.019995380, (0 missing)
##       goal               < 5050     to the right, improve=0.007396695, (0 missing)
##   Surrogate splits:
##       reward_length     < 5889     to the left,  agree=0.583, adj=0.117, (0 split)
##       category          splits as  --------R---L--, agree=0.575, adj=0.100, (0 split)
##       mo_launched       splits as  L-L--LL--R-R, agree=0.567, adj=0.083, (0 split)
##       goal              < 4992.5   to the right, agree=0.567, adj=0.083, (0 split)
##       campaign_duration < 28.98    to the right, agree=0.551, adj=0.050, (0 split)
## 
## Node number 42545: 109 observations,    complexity param=0.0001262147
##   mean=0.3761468, MSE=0.2346604 
##   left son=85090 (28 obs) right son=85091 (81 obs)
##   Primary splits:
##       mo_launched        splits as  R-R--RR--L-L, improve=0.05750410, (0 missing)
##       description_length < 3806.5   to the right, improve=0.04074156, (0 missing)
##       reward_length      < 6261.5   to the right, improve=0.02482384, (0 missing)
##       campaign_duration  < 45.895   to the left,  improve=0.01680174, (0 missing)
##       goal               < 7250     to the right, improve=0.01648336, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 27.175   to the left,  agree=0.780, adj=0.143, (0 split)
##       reward_length      < 4965.5   to the left,  agree=0.761, adj=0.071, (0 split)
##       description_length < 3385.5   to the left,  agree=0.752, adj=0.036, (0 split)
## 
## Node number 42546: 14 observations
##   mean=0.2857143, MSE=0.2040816 
## 
## Node number 42547: 7 observations
##   mean=1, MSE=0 
## 
## Node number 42586: 7 observations
##   mean=0.1428571, MSE=0.122449 
## 
## Node number 42587: 13 observations
##   mean=0.6153846, MSE=0.2366864 
## 
## Node number 42588: 22 observations
##   mean=0.2727273, MSE=0.1983471 
## 
## Node number 42589: 157 observations,    complexity param=0.0001405862
##   mean=0.5159236, MSE=0.2497464 
##   left son=85178 (8 obs) right son=85179 (149 obs)
##   Primary splits:
##       campaign_duration  < 22.695   to the left,  improve=0.03285399, (0 missing)
##       description_length < 899.5    to the left,  improve=0.02600637, (0 missing)
##       goal               < 4997.5   to the right, improve=0.01815638, (0 missing)
##       mo_launched        splits as  -R-LR--LR-L-, improve=0.01569187, (0 missing)
##       reward_length      < 6177.5   to the right, improve=0.01337571, (0 missing)
## 
## Node number 42610: 7 observations
##   mean=0.1428571, MSE=0.122449 
## 
## Node number 42611: 26 observations
##   mean=0.6538462, MSE=0.2263314 
## 
## Node number 42680: 39 observations
##   mean=0.2564103, MSE=0.190664 
## 
## Node number 42681: 45 observations,    complexity param=0.0001019282
##   mean=0.5555556, MSE=0.2469136 
##   left son=85362 (37 obs) right son=85363 (8 obs)
##   Primary splits:
##       description_length < 5227.5   to the left,  improve=0.08935811, (0 missing)
##       reward_length      < 6967.5   to the right, improve=0.05432331, (0 missing)
##       goal               < 5550     to the left,  improve=0.03952569, (0 missing)
##       social_media_count splits as  RLR-, improve=0.02840909, (0 missing)
##       category           splits as  L------------R-, improve=0.02414286, (0 missing)
##   Surrogate splits:
##       usa < 0.5      to the right, agree=0.844, adj=0.125, (0 split)
## 
## Node number 42682: 35 observations,    complexity param=0.0001116228
##   mean=0.5142857, MSE=0.2497959 
##   left son=85364 (28 obs) right son=85365 (7 obs)
##   Primary splits:
##       description_length < 1532     to the right, improve=0.11764710, (0 missing)
##       mo_launched        splits as  L-----LRLLLR, improve=0.08323430, (0 missing)
##       campaign_duration  < 27.735   to the left,  improve=0.08284919, (0 missing)
##       reward_length      < 5532     to the right, improve=0.06590414, (0 missing)
##       goal               < 5637.5   to the right, improve=0.01960784, (0 missing)
## 
## Node number 42683: 9 observations
##   mean=1, MSE=0 
## 
## Node number 42686: 10 observations
##   mean=0.5, MSE=0.25 
## 
## Node number 42687: 20 observations
##   mean=0.95, MSE=0.0475 
## 
## Node number 42710: 11 observations
##   mean=0.4545455, MSE=0.2479339 
## 
## Node number 42711: 12 observations
##   mean=1, MSE=0 
## 
## Node number 42720: 46 observations,    complexity param=0.000101404
##   mean=0.4347826, MSE=0.2457467 
##   left son=85440 (13 obs) right son=85441 (33 obs)
##   Primary splits:
##       description_length < 3043.5   to the left,  improve=0.06672046, (0 missing)
##       campaign_duration  < 30.7     to the left,  improve=0.06448413, (0 missing)
##       reward_length      < 5896     to the right, improve=0.03540064, (0 missing)
##       goal               < 6250     to the left,  improve=0.03324176, (0 missing)
##       mo_launched        splits as  -LLRLR------, improve=0.01912324, (0 missing)
## 
## Node number 42721: 19 observations
##   mean=0.7368421, MSE=0.1939058 
## 
## Node number 43000: 27 observations,    complexity param=0.0001018293
##   mean=0.4814815, MSE=0.2496571 
##   left son=86000 (20 obs) right son=86001 (7 obs)
##   Primary splits:
##       description_length < 2196     to the right, improve=0.19784140, (0 missing)
##       reward_length      < 10507.5  to the right, improve=0.09037016, (0 missing)
##       goal               < 7350     to the left,  improve=0.07598116, (0 missing)
##       campaign_duration  < 30.54    to the right, improve=0.07032967, (0 missing)
##       mo_launched        splits as  R------L-L--, improve=0.03473829, (0 missing)
## 
## Node number 43001: 25 observations
##   mean=0.76, MSE=0.1824 
## 
## Node number 43632: 18 observations
##   mean=0.05555556, MSE=0.05246914 
## 
## Node number 43633: 9 observations
##   mean=0.6666667, MSE=0.2222222 
## 
## Node number 44092: 14 observations
##   mean=0.3571429, MSE=0.2295918 
## 
## Node number 44093: 11 observations
##   mean=0.8181818, MSE=0.1487603 
## 
## Node number 44332: 53 observations,    complexity param=0.000125572
##   mean=0.4339623, MSE=0.245639 
##   left son=88664 (19 obs) right son=88665 (34 obs)
##   Primary splits:
##       reward_length      < 14237    to the left,  improve=0.17338360, (0 missing)
##       description_length < 5321.5   to the right, improve=0.06424794, (0 missing)
##       mo_launched        splits as  --L-RR----RL, improve=0.02771818, (0 missing)
##       goal               < 5900     to the left,  improve=0.02771818, (0 missing)
##       campaign_duration  < 29.27    to the right, improve=0.01231152, (0 missing)
##   Surrogate splits:
##       mo_launched splits as  --R-RL----RR, agree=0.66, adj=0.053, (0 split)
##       category    splits as  L-----------R--, agree=0.66, adj=0.053, (0 split)
## 
## Node number 44333: 35 observations,    complexity param=0.0001134458
##   mean=0.6285714, MSE=0.2334694 
##   left son=88666 (23 obs) right son=88667 (12 obs)
##   Primary splits:
##       description_length < 7210.5   to the left,  improve=0.09369616, (0 missing)
##       campaign_duration  < 35.175   to the right, improve=0.08951049, (0 missing)
##       reward_length      < 12701.5  to the right, improve=0.07706876, (0 missing)
##       mo_launched        splits as  --R-LR----RL, improve=0.05945380, (0 missing)
##       goal               < 12750    to the right, improve=0.03694132, (0 missing)
##   Surrogate splits:
##       mo_launched       splits as  --R-LL----LL, agree=0.771, adj=0.333, (0 split)
##       reward_length     < 19518    to the left,  agree=0.714, adj=0.167, (0 split)
##       campaign_duration < 31.035   to the right, agree=0.686, adj=0.083, (0 split)
## 
## Node number 44546: 63 observations,    complexity param=0.0001208038
##   mean=0.3015873, MSE=0.2106324 
##   left son=89092 (14 obs) right son=89093 (49 obs)
##   Primary splits:
##       description_length < 4331.5   to the left,  improve=0.07185578, (0 missing)
##       reward_length      < 12161    to the right, improve=0.06071862, (0 missing)
##       goal               < 14500    to the right, improve=0.03158079, (0 missing)
##       campaign_duration  < 34.005   to the left,  improve=0.02138645, (0 missing)
##       mo_launched        splits as  R-LL--RR-LL-, improve=0.01574577, (0 missing)
##   Surrogate splits:
##       reward_length < 14630.5  to the right, agree=0.810, adj=0.143, (0 split)
##       goal          < 11555.56 to the left,  agree=0.794, adj=0.071, (0 split)
## 
## Node number 44547: 15 observations
##   mean=0.7333333, MSE=0.1955556 
## 
## Node number 47896: 14 observations
##   mean=0.07142857, MSE=0.06632653 
## 
## Node number 47897: 15 observations
##   mean=0.5333333, MSE=0.2488889 
## 
## Node number 47950: 22 observations,    complexity param=0.0001221256
##   mean=0.4545455, MSE=0.2479339 
##   left son=95900 (15 obs) right son=95901 (7 obs)
##   Primary splits:
##       social_media_count splits as  LRL-,         improve=0.305079400, (0 missing)
##       mo_launched        splits as  R-RL--L----R, improve=0.041025640, (0 missing)
##       reward_length      < 5869.5   to the left,  improve=0.014583330, (0 missing)
##       campaign_duration  < 30.5     to the left,  improve=0.006944444, (0 missing)
##       description_length < 882      to the right, improve=0.006944444, (0 missing)
##   Surrogate splits:
##       description_length < 856      to the right, agree=0.727, adj=0.143, (0 split)
##       reward_length      < 7843.5   to the left,  agree=0.727, adj=0.143, (0 split)
## 
## Node number 47951: 19 observations
##   mean=0.7894737, MSE=0.166205 
## 
## Node number 47964: 16 observations
##   mean=0.3125, MSE=0.2148438 
## 
## Node number 47965: 8 observations
##   mean=0.75, MSE=0.1875 
## 
## Node number 47968: 107 observations,    complexity param=0.0001247708
##   mean=0.3925234, MSE=0.2384488 
##   left son=95936 (99 obs) right son=95937 (8 obs)
##   Primary splits:
##       description_length < 1063.5   to the right, improve=0.04330669, (0 missing)
##       campaign_duration  < 29.5     to the right, improve=0.01917275, (0 missing)
##       reward_length      < 6079     to the left,  improve=0.01875666, (0 missing)
##       social_media_count splits as  RLRR,         improve=0.01145849, (0 missing)
##       goal               < 5375     to the left,  improve=0.01129267, (0 missing)
## 
## Node number 47969: 61 observations,    complexity param=0.0001247708
##   mean=0.5737705, MSE=0.2445579 
##   left son=95938 (37 obs) right son=95939 (24 obs)
##   Primary splits:
##       category           splits as  ------R---L----, improve=0.08237303, (0 missing)
##       goal               < 5600     to the right, improve=0.07804443, (0 missing)
##       description_length < 1184     to the right, improve=0.06824176, (0 missing)
##       social_media_count splits as  LRR-, improve=0.06194720, (0 missing)
##       campaign_duration  < 24.98    to the right, improve=0.04256352, (0 missing)
##   Surrogate splits:
##       reward_length     < 5189.5   to the right, agree=0.705, adj=0.250, (0 split)
##       goal              < 4900     to the right, agree=0.672, adj=0.167, (0 split)
##       campaign_duration < 24.98    to the right, agree=0.656, adj=0.125, (0 split)
##       usa               < 0.5      to the right, agree=0.656, adj=0.125, (0 split)
##       mo_launched       splits as  -L-R------L-, agree=0.656, adj=0.125, (0 split)
## 
## Node number 47970: 30 observations
##   mean=0.4333333, MSE=0.2455556 
## 
## Node number 47971: 104 observations,    complexity param=0.0001179638
##   mean=0.6057692, MSE=0.2388129 
##   left son=95942 (33 obs) right son=95943 (71 obs)
##   Primary splits:
##       goal               < 6830     to the right, improve=0.044507990, (0 missing)
##       description_length < 1074.5   to the left,  improve=0.040538190, (0 missing)
##       reward_length      < 5576     to the left,  improve=0.022753170, (0 missing)
##       campaign_duration  < 43.72    to the right, improve=0.012543550, (0 missing)
##       mo_launched        splits as  -R---LRRRL-L, improve=0.003484321, (0 missing)
##   Surrogate splits:
##       description_length < 1024.5   to the left,  agree=0.702, adj=0.061, (0 split)
##       reward_length      < 7287.5   to the right, agree=0.702, adj=0.061, (0 split)
## 
## Node number 47974: 32 observations,    complexity param=0.0001028063
##   mean=0.625, MSE=0.234375 
##   left son=95948 (13 obs) right son=95949 (19 obs)
##   Primary splits:
##       reward_length     < 6704     to the left,  improve=0.16869100, (0 missing)
##       mo_launched       splits as  L-L-R-------, improve=0.09437908, (0 missing)
##       campaign_duration < 31.89    to the left,  improve=0.06072874, (0 missing)
##       goal              < 5150     to the right, improve=0.05185185, (0 missing)
##       category          splits as  ------R---L----, improve=0.02337662, (0 missing)
##   Surrogate splits:
##       campaign_duration < 20.44    to the left,  agree=0.719, adj=0.308, (0 split)
##       goal              < 4750     to the left,  agree=0.656, adj=0.154, (0 split)
## 
## Node number 47975: 59 observations
##   mean=0.8135593, MSE=0.1516806 
## 
## Node number 47978: 19 observations
##   mean=0.3684211, MSE=0.232687 
## 
## Node number 47979: 27 observations
##   mean=0.7407407, MSE=0.1920439 
## 
## Node number 47980: 13 observations
##   mean=0.3846154, MSE=0.2366864 
## 
## Node number 47981: 71 observations
##   mean=0.7042254, MSE=0.208292 
## 
## Node number 48100: 35 observations,    complexity param=0.0001037198
##   mean=0.4857143, MSE=0.2497959 
##   left son=96200 (7 obs) right son=96201 (28 obs)
##   Primary splits:
##       description_length < 1566     to the right, improve=0.11764710, (0 missing)
##       goal               < 5250     to the left,  improve=0.10675380, (0 missing)
##       mo_launched        splits as  ---LR-RLR--R, improve=0.09620971, (0 missing)
##       campaign_duration  < 28.605   to the right, improve=0.05228758, (0 missing)
##       reward_length      < 19321    to the left,  improve=0.02301198, (0 missing)
##   Surrogate splits:
##       campaign_duration < 25.87    to the left,  agree=0.829, adj=0.143, (0 split)
##       mo_launched       splits as  ---RR-RLR--R, agree=0.829, adj=0.143, (0 split)
## 
## Node number 48101: 15 observations
##   mean=0.8, MSE=0.16 
## 
## Node number 48150: 10 observations
##   mean=0.1, MSE=0.09 
## 
## Node number 48151: 45 observations
##   mean=0.4666667, MSE=0.2488889 
## 
## Node number 48154: 14 observations
##   mean=0.2142857, MSE=0.1683673 
## 
## Node number 48155: 26 observations,    complexity param=0.0001155337
##   mean=0.5384615, MSE=0.2485207 
##   left son=96310 (15 obs) right son=96311 (11 obs)
##   Primary splits:
##       mo_launched        splits as  L-L---L-RR-R, improve=0.23088020, (0 missing)
##       goal               < 44546.5  to the left,  improve=0.08002646, (0 missing)
##       reward_length      < 13136    to the left,  improve=0.03501401, (0 missing)
##       description_length < 3301     to the right, improve=0.02380952, (0 missing)
##       campaign_duration  < 40.26    to the right, improve=0.01882975, (0 missing)
##   Surrogate splits:
##       reward_length      < 11811    to the right, agree=0.692, adj=0.273, (0 split)
##       description_length < 2005     to the right, agree=0.654, adj=0.182, (0 split)
##       social_media_count splits as  LLLR,         agree=0.615, adj=0.091, (0 split)
## 
## Node number 48156: 10 observations
##   mean=0.1, MSE=0.09 
## 
## Node number 48157: 48 observations,    complexity param=0.0001117857
##   mean=0.5833333, MSE=0.2430556 
##   left son=96314 (30 obs) right son=96315 (18 obs)
##   Primary splits:
##       reward_length      < 11621    to the right, improve=0.09333333, (0 missing)
##       social_media_count splits as  RLR-,         improve=0.08691729, (0 missing)
##       description_length < 3229     to the right, improve=0.04207792, (0 missing)
##       mo_launched        splits as  -L-LRL-R--L-, improve=0.01814757, (0 missing)
##       goal               < 34250    to the right, improve=0.01793789, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 29.81    to the right, agree=0.708, adj=0.222, (0 split)
##       usa                < 0.5      to the right, agree=0.667, adj=0.111, (0 split)
##       description_length < 2935.5   to the right, agree=0.667, adj=0.111, (0 split)
##       video_status       < 0.5      to the right, agree=0.646, adj=0.056, (0 split)
##       mo_launched        splits as  -L-RLL-L--L-, agree=0.646, adj=0.056, (0 split)
## 
## Node number 48164: 50 observations,    complexity param=0.000107199
##   mean=0.16, MSE=0.1344 
##   left son=96328 (22 obs) right son=96329 (28 obs)
##   Primary splits:
##       reward_length      < 9339     to the right, improve=0.14965990, (0 missing)
##       goal               < 22500    to the right, improve=0.06692407, (0 missing)
##       mo_launched        splits as  RRLLRLR-RR--, improve=0.06015038, (0 missing)
##       campaign_duration  < 30.965   to the left,  improve=0.06001984, (0 missing)
##       description_length < 2350.5   to the right, improve=0.04572940, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  RLRRRRR-LR--, agree=0.64, adj=0.182, (0 split)
##       description_length < 2069.5   to the left,  agree=0.64, adj=0.182, (0 split)
##       goal               < 20750    to the right, agree=0.60, adj=0.091, (0 split)
##       social_media_count splits as  LR--,         agree=0.58, adj=0.045, (0 split)
## 
## Node number 48165: 25 observations,    complexity param=0.0001818246
##   mean=0.48, MSE=0.2496 
##   left son=96330 (17 obs) right son=96331 (8 obs)
##   Primary splits:
##       reward_length      < 13379.5  to the left,  improve=0.29416480, (0 missing)
##       social_media_count splits as  LR--,         improve=0.08552096, (0 missing)
##       goal               < 20450    to the right, improve=0.07955293, (0 missing)
##       campaign_duration  < 30.015   to the left,  improve=0.02078620, (0 missing)
##       description_length < 3036     to the left,  improve=0.01709402, (0 missing)
## 
## Node number 48166: 24 observations,    complexity param=0.0001127251
##   mean=0.3333333, MSE=0.2222222 
##   left son=96332 (7 obs) right son=96333 (17 obs)
##   Primary splits:
##       description_length < 2488.5   to the left,  improve=0.20588240, (0 missing)
##       reward_length      < 12125    to the left,  improve=0.10504200, (0 missing)
##       campaign_duration  < 34.41    to the left,  improve=0.06250000, (0 missing)
##       social_media_count splits as  LR--,         improve=0.03333333, (0 missing)
##       mo_launched        splits as  ---R-RL-----, improve=0.01562500, (0 missing)
## 
## Node number 48167: 62 observations,    complexity param=0.0001374502
##   mean=0.5806452, MSE=0.2434964 
##   left son=96334 (44 obs) right son=96335 (18 obs)
##   Primary splits:
##       description_length < 2485.5   to the right, improve=0.10727470, (0 missing)
##       campaign_duration  < 34.5     to the right, improve=0.08173012, (0 missing)
##       social_media_count splits as  LR--,         improve=0.04096990, (0 missing)
##       mo_launched        splits as  RLL-L--RLRRR, improve=0.01919328, (0 missing)
##       reward_length      < 12574    to the left,  improve=0.01745014, (0 missing)
##   Surrogate splits:
##       goal              < 14250    to the right, agree=0.774, adj=0.222, (0 split)
##       campaign_duration < 50.725   to the left,  agree=0.742, adj=0.111, (0 split)
## 
## Node number 48172: 17 observations
##   mean=0.4705882, MSE=0.2491349 
## 
## Node number 48173: 9 observations
##   mean=0.8888889, MSE=0.09876543 
## 
## Node number 48178: 144 observations,    complexity param=0.000163713
##   mean=0.4583333, MSE=0.2482639 
##   left son=96356 (61 obs) right son=96357 (83 obs)
##   Primary splits:
##       goal               < 19314.1  to the right, improve=0.05038750, (0 missing)
##       mo_launched        splits as  R--LRRR-L-R-, improve=0.03199429, (0 missing)
##       description_length < 2286     to the left,  improve=0.01619322, (0 missing)
##       reward_length      < 6123.5   to the left,  improve=0.01589320, (0 missing)
##       social_media_count splits as  RLL-,         improve=0.01034905, (0 missing)
##   Surrogate splits:
##       reward_length      < 13778    to the right, agree=0.611, adj=0.082, (0 split)
##       campaign_duration  < 34.095   to the right, agree=0.597, adj=0.049, (0 split)
##       mo_launched        splits as  R--RRRR-L-R-, agree=0.583, adj=0.016, (0 split)
##       description_length < 3483     to the right, agree=0.583, adj=0.016, (0 split)
## 
## Node number 48179: 39 observations,    complexity param=0.000163713
##   mean=0.6666667, MSE=0.2222222 
##   left son=96358 (18 obs) right son=96359 (21 obs)
##   Primary splits:
##       mo_launched        splits as  R--LLRL-R-R-, improve=0.19047620, (0 missing)
##       campaign_duration  < 42.305   to the right, improve=0.12903230, (0 missing)
##       description_length < 2950.5   to the left,  improve=0.11250000, (0 missing)
##       goal               < 15500    to the left,  improve=0.03396739, (0 missing)
##       reward_length      < 6976.5   to the right, improve=0.03342246, (0 missing)
##   Surrogate splits:
##       reward_length      < 6200     to the left,  agree=0.667, adj=0.278, (0 split)
##       goal               < 24500    to the right, agree=0.641, adj=0.222, (0 split)
##       description_length < 2023.5   to the left,  agree=0.641, adj=0.222, (0 split)
##       campaign_duration  < 40.595   to the left,  agree=0.564, adj=0.056, (0 split)
##       social_media_count splits as  LRR-,         agree=0.564, adj=0.056, (0 split)
## 
## Node number 48180: 38 observations
##   mean=0.4473684, MSE=0.2472299 
## 
## Node number 48181: 13 observations
##   mean=0.7692308, MSE=0.1775148 
## 
## Node number 48186: 10 observations
##   mean=0.5, MSE=0.25 
## 
## Node number 48187: 10 observations
##   mean=1, MSE=0 
## 
## Node number 48190: 117 observations
##   mean=0.6666667, MSE=0.2222222 
## 
## Node number 48191: 18 observations
##   mean=0.9444444, MSE=0.05246914 
## 
## Node number 48352: 17 observations
##   mean=0.1764706, MSE=0.1453287 
## 
## Node number 48353: 52 observations,    complexity param=0.0001332611
##   mean=0.5384615, MSE=0.2485207 
##   left son=96706 (12 obs) right son=96707 (40 obs)
##   Primary splits:
##       mo_launched        splits as  R--RR-LLRR--, improve=0.100446400, (0 missing)
##       description_length < 6609.5   to the right, improve=0.089635850, (0 missing)
##       reward_length      < 9193.5   to the right, improve=0.065532880, (0 missing)
##       goal               < 31500    to the left,  improve=0.012733690, (0 missing)
##       campaign_duration  < 41.84    to the right, improve=0.007602154, (0 missing)
##   Surrogate splits:
##       reward_length < 16158.5  to the right, agree=0.846, adj=0.333, (0 split)
## 
## Node number 48360: 9 observations
##   mean=0.1111111, MSE=0.09876543 
## 
## Node number 48361: 11 observations
##   mean=0.6363636, MSE=0.231405 
## 
## Node number 48362: 7 observations
##   mean=0.2857143, MSE=0.2040816 
## 
## Node number 48363: 82 observations,    complexity param=0.0001069296
##   mean=0.7926829, MSE=0.1643367 
##   left son=96726 (48 obs) right son=96727 (34 obs)
##   Primary splits:
##       reward_length      < 11207    to the left,  improve=0.061121460, (0 missing)
##       description_length < 7365     to the right, improve=0.034541860, (0 missing)
##       mo_launched        splits as  -L--RL-LR---, improve=0.012760910, (0 missing)
##       social_media_count splits as  RLL-,         improve=0.010829890, (0 missing)
##       campaign_duration  < 39.145   to the right, improve=0.008059479, (0 missing)
##   Surrogate splits:
##       description_length < 7047.5   to the right, agree=0.610, adj=0.059, (0 split)
##       mo_launched        splits as  -L--LL-RL---, agree=0.598, adj=0.029, (0 split)
## 
## Node number 48368: 37 observations,    complexity param=0.000101825
##   mean=0.5405405, MSE=0.2483565 
##   left son=96736 (12 obs) right son=96737 (25 obs)
##   Primary splits:
##       description_length < 10738    to the right, improve=0.08298039, (0 missing)
##       social_media_count splits as  LRRL,         improve=0.07398612, (0 missing)
##       goal               < 24000    to the left,  improve=0.06100840, (0 missing)
##       campaign_duration  < 35.02    to the right, improve=0.06100840, (0 missing)
##       reward_length      < 29869.5  to the right, improve=0.03043864, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  LR--R-R---R-, agree=0.730, adj=0.167, (0 split)
##       campaign_duration  < 35.02    to the right, agree=0.703, adj=0.083, (0 split)
##       social_media_count splits as  RRRL,         agree=0.703, adj=0.083, (0 split)
## 
## Node number 48369: 14 observations
##   mean=0.8571429, MSE=0.122449 
## 
## Node number 48434: 242 observations,    complexity param=0.0001375129
##   mean=0.5785124, MSE=0.2438358 
##   left son=96868 (24 obs) right son=96869 (218 obs)
##   Primary splits:
##       description_length < 3417     to the right, improve=0.027140890, (0 missing)
##       goal               < 11545    to the right, improve=0.017075450, (0 missing)
##       reward_length      < 11640.5  to the left,  improve=0.015620130, (0 missing)
##       social_media_count splits as  LRRR,         improve=0.008125584, (0 missing)
##       campaign_duration  < 44.505   to the left,  improve=0.006918768, (0 missing)
## 
## Node number 48435: 28 observations
##   mean=0.7857143, MSE=0.1683673 
## 
## Node number 48436: 37 observations,    complexity param=0.0001259333
##   mean=0.3243243, MSE=0.2191381 
##   left son=96872 (13 obs) right son=96873 (24 obs)
##   Primary splits:
##       mo_launched        splits as  RLLR-L-R---R, improve=0.15129270, (0 missing)
##       description_length < 3020     to the left,  improve=0.12844440, (0 missing)
##       campaign_duration  < 59.98    to the left,  improve=0.08572464, (0 missing)
##       goal               < 5250     to the left,  improve=0.07183761, (0 missing)
##       social_media_count splits as  LLRR,         improve=0.03885057, (0 missing)
##   Surrogate splits:
##       reward_length < 5295.5   to the left,  agree=0.730, adj=0.231, (0 split)
##       goal          < 9100     to the right, agree=0.703, adj=0.154, (0 split)
## 
## Node number 48437: 49 observations,    complexity param=0.0001480169
##   mean=0.6938776, MSE=0.2124115 
##   left son=96874 (25 obs) right son=96875 (24 obs)
##   Primary splits:
##       campaign_duration  < 57.715   to the right, improve=0.22432680, (0 missing)
##       goal               < 5199.5   to the left,  improve=0.06765066, (0 missing)
##       mo_launched        splits as  RRRR-R-L---L, improve=0.06765066, (0 missing)
##       reward_length      < 6220.5   to the right, improve=0.03452893, (0 missing)
##       description_length < 2675.5   to the right, improve=0.02144118, (0 missing)
##   Surrogate splits:
##       goal               < 6200     to the left,  agree=0.673, adj=0.333, (0 split)
##       reward_length      < 5905.5   to the right, agree=0.592, adj=0.167, (0 split)
##       description_length < 1974.5   to the left,  agree=0.571, adj=0.125, (0 split)
##       mo_launched        splits as  LLRL-L-L---L, agree=0.551, adj=0.083, (0 split)
##       social_media_count splits as  RLL-,         agree=0.531, adj=0.042, (0 split)
## 
## Node number 48580: 95 observations,    complexity param=0.0001779633
##   mean=0.4947368, MSE=0.2499723 
##   left son=97160 (59 obs) right son=97161 (36 obs)
##   Primary splits:
##       reward_length      < 6564.5   to the left,  improve=0.05072245, (0 missing)
##       description_length < 2083.5   to the right, improve=0.04270095, (0 missing)
##       mo_launched        splits as  LRRRLR-RLLL-, improve=0.04255319, (0 missing)
##       goal               < 7750     to the right, improve=0.03997270, (0 missing)
##       campaign_duration  < 29.98    to the right, improve=0.03167506, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  LRLLLR-LLRL-, agree=0.663, adj=0.111, (0 split)
##       goal               < 7750     to the right, agree=0.663, adj=0.111, (0 split)
##       campaign_duration  < 24.105   to the right, agree=0.632, adj=0.028, (0 split)
##       social_media_count splits as  LLRL,         agree=0.632, adj=0.028, (0 split)
##       description_length < 2937.5   to the left,  agree=0.632, adj=0.028, (0 split)
## 
## Node number 48581: 81 observations,    complexity param=0.0001564145
##   mean=0.7407407, MSE=0.1920439 
##   left son=97162 (15 obs) right son=97163 (66 obs)
##   Primary splits:
##       goal               < 7250     to the left,  improve=0.08889610, (0 missing)
##       reward_length      < 6869.5   to the right, improve=0.07886022, (0 missing)
##       mo_launched        splits as  RRRRRL-RLRL-, improve=0.06361641, (0 missing)
##       social_media_count splits as  RLLL,         improve=0.06211358, (0 missing)
##       description_length < 3286.5   to the right, improve=0.03835616, (0 missing)
## 
## Node number 48582: 13 observations
##   mean=0.4615385, MSE=0.2485207 
## 
## Node number 48583: 185 observations
##   mean=0.7945946, MSE=0.163214 
## 
## Node number 48584: 11 observations
##   mean=0.3636364, MSE=0.231405 
## 
## Node number 48585: 253 observations,    complexity param=0.00011519
##   mean=0.6561265, MSE=0.2256245 
##   left son=97170 (34 obs) right son=97171 (219 obs)
##   Primary splits:
##       campaign_duration  < 28.505   to the left,  improve=0.011048480, (0 missing)
##       goal               < 9725     to the right, improve=0.009331098, (0 missing)
##       reward_length      < 18851    to the left,  improve=0.008604933, (0 missing)
##       social_media_count splits as  RLLR,         improve=0.008014344, (0 missing)
##       description_length < 8518     to the left,  improve=0.007090431, (0 missing)
## 
## Node number 48586: 47 observations,    complexity param=0.0001257388
##   mean=0.6170213, MSE=0.236306 
##   left son=97172 (19 obs) right son=97173 (28 obs)
##   Primary splits:
##       goal               < 8245     to the right, improve=0.11027930, (0 missing)
##       description_length < 2587     to the right, improve=0.08494998, (0 missing)
##       category           splits as  ------R---L----, improve=0.06046977, (0 missing)
##       reward_length      < 9329     to the right, improve=0.05899807, (0 missing)
##       social_media_count splits as  LRR-, improve=0.02906960, (0 missing)
##   Surrogate splits:
##       description_length < 3267.5   to the right, agree=0.723, adj=0.316, (0 split)
##       reward_length      < 8759.5   to the right, agree=0.702, adj=0.263, (0 split)
##       campaign_duration  < 30.115   to the right, agree=0.638, adj=0.105, (0 split)
##       usa                < 0.5      to the left,  agree=0.617, adj=0.053, (0 split)
##       mo_launched        splits as  R-------LRR-, agree=0.617, adj=0.053, (0 split)
## 
## Node number 48587: 273 observations,    complexity param=0.0001364298
##   mean=0.7912088, MSE=0.1651974 
##   left son=97174 (110 obs) right son=97175 (163 obs)
##   Primary splits:
##       description_length < 3127.5   to the left,  improve=0.021785540, (0 missing)
##       reward_length      < 9838.5   to the left,  improve=0.017505860, (0 missing)
##       mo_launched        splits as  R-L-L---RRR-, improve=0.012287920, (0 missing)
##       campaign_duration  < 28.645   to the right, improve=0.005756579, (0 missing)
##       social_media_count splits as  LLRL,         improve=0.005559403, (0 missing)
##   Surrogate splits:
##       reward_length < 11627    to the right, agree=0.604, adj=0.018, (0 split)
## 
## Node number 48604: 13 observations
##   mean=0.4615385, MSE=0.2485207 
## 
## Node number 48605: 32 observations
##   mean=0.90625, MSE=0.08496094 
## 
## Node number 48612: 19 observations
##   mean=0.4210526, MSE=0.2437673 
## 
## Node number 48613: 17 observations
##   mean=0.8235294, MSE=0.1453287 
## 
## Node number 49494: 113 observations
##   mean=0.1858407, MSE=0.1513039 
## 
## Node number 49495: 7 observations
##   mean=0.8571429, MSE=0.122449 
## 
## Node number 50378: 11 observations
##   mean=0, MSE=0 
## 
## Node number 50379: 80 observations,    complexity param=0.0001352428
##   mean=0.375, MSE=0.234375 
##   left son=100758 (72 obs) right son=100759 (8 obs)
##   Primary splits:
##       reward_length      < 2499.5   to the left,  improve=0.11851850, (0 missing)
##       description_length < 523      to the right, improve=0.06666667, (0 missing)
##       mo_launched        splits as  -LRL--LRLLLR, improve=0.04077576, (0 missing)
##       category           splits as  R---R-----L----, improve=0.03042853, (0 missing)
##       social_media_count splits as  RLLR, improve=0.01935484, (0 missing)
##   Surrogate splits:
##       social_media_count splits as  LLLR,         agree=0.912, adj=0.125, (0 split)
##       description_length < 1207     to the left,  agree=0.912, adj=0.125, (0 split)
## 
## Node number 50380: 73 observations,    complexity param=0.0001331127
##   mean=0.3287671, MSE=0.2206793 
##   left son=100760 (29 obs) right son=100761 (44 obs)
##   Primary splits:
##       mo_launched        splits as  -RLR--LRRLRL, improve=0.10876890, (0 missing)
##       social_media_count splits as  RLLR, improve=0.04655239, (0 missing)
##       category           splits as  R---R-----L----, improve=0.03152744, (0 missing)
##       reward_length      < 3903.5   to the right, improve=0.03018855, (0 missing)
##       campaign_duration  < 30.02    to the right, improve=0.02920139, (0 missing)
##   Surrogate splits:
##       description_length < 822      to the right, agree=0.671, adj=0.172, (0 split)
##       campaign_duration  < 59.98    to the right, agree=0.616, adj=0.034, (0 split)
##       social_media_count splits as  RRRL,         agree=0.616, adj=0.034, (0 split)
##       reward_length      < 3172.5   to the left,  agree=0.616, adj=0.034, (0 split)
## 
## Node number 50381: 37 observations,    complexity param=0.0001331127
##   mean=0.4864865, MSE=0.2498174 
##   left son=100762 (18 obs) right son=100763 (19 obs)
##   Primary splits:
##       mo_launched        splits as  -LLR--RLLRRR, improve=0.16518760, (0 missing)
##       campaign_duration  < 50.32    to the right, improve=0.06175640, (0 missing)
##       category           splits as  L---L-----R----, improve=0.04506823, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.04506823, (0 missing)
##       social_media_count splits as  LRR-, improve=0.03804237, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 30.02    to the left,  agree=0.676, adj=0.333, (0 split)
##       goal               < 2650     to the left,  agree=0.649, adj=0.278, (0 split)
##       description_length < 1061     to the left,  agree=0.622, adj=0.222, (0 split)
##       reward_length      < 3742.5   to the right, agree=0.622, adj=0.222, (0 split)
##       usa                < 0.5      to the left,  agree=0.568, adj=0.111, (0 split)
## 
## Node number 50596: 10 observations
##   mean=0, MSE=0 
## 
## Node number 50597: 11 observations
##   mean=0.4545455, MSE=0.2479339 
## 
## Node number 50604: 10 observations
##   mean=0, MSE=0 
## 
## Node number 50605: 14 observations
##   mean=0.5714286, MSE=0.244898 
## 
## Node number 50606: 65 observations,    complexity param=0.0001472286
##   mean=0.5230769, MSE=0.2494675 
##   left son=101212 (22 obs) right son=101213 (43 obs)
##   Primary splits:
##       video_status       < 0.5      to the left,  improve=0.12853880, (0 missing)
##       campaign_duration  < 30.19    to the left,  improve=0.07084124, (0 missing)
##       reward_length      < 2604.5   to the left,  improve=0.06758027, (0 missing)
##       description_length < 631.5    to the left,  improve=0.02725718, (0 missing)
##       social_media_count splits as  RLRR,         improve=0.02698714, (0 missing)
##   Surrogate splits:
##       description_length < 631.5    to the left,  agree=0.708, adj=0.136, (0 split)
## 
## Node number 50607: 22 observations,    complexity param=0.0001248368
##   mean=0.7727273, MSE=0.1756198 
##   left son=101214 (7 obs) right son=101215 (15 obs)
##   Primary splits:
##       reward_length      < 2979     to the right, improve=0.3147339, (0 missing)
##       video_status       < 0.5      to the right, improve=0.2450980, (0 missing)
##       mo_launched        splits as  -R-LR-L----R, improve=0.1680672, (0 missing)
##       campaign_duration  < 30.225   to the right, improve=0.1415686, (0 missing)
##       description_length < 1014     to the right, improve=0.1076751, (0 missing)
##   Surrogate splits:
##       campaign_duration < 30.225   to the right, agree=0.773, adj=0.286, (0 split)
## 
## Node number 50788: 37 observations,    complexity param=0.0001283621
##   mean=0.3513514, MSE=0.2279036 
##   left son=101576 (7 obs) right son=101577 (30 obs)
##   Primary splits:
##       campaign_duration  < 60.45    to the right, improve=0.12638890, (0 missing)
##       reward_length      < 1435     to the right, improve=0.10047480, (0 missing)
##       goal               < 2200     to the left,  improve=0.03590931, (0 missing)
##       description_length < 2321.5   to the right, improve=0.02351699, (0 missing)
##       category           splits as  R---R-----L----, improve=0.02145493, (0 missing)
##   Surrogate splits:
##       reward_length < 557      to the left,  agree=0.865, adj=0.286, (0 split)
## 
## Node number 50789: 8 observations
##   mean=0.75, MSE=0.1875 
## 
## Node number 51094: 9 observations
##   mean=0.3333333, MSE=0.2222222 
## 
## Node number 51095: 38 observations,    complexity param=0.0001003836
##   mean=0.7105263, MSE=0.2056787 
##   left son=102190 (8 obs) right son=102191 (30 obs)
##   Primary splits:
##       campaign_duration  < 33.98    to the right, improve=0.14595960, (0 missing)
##       goal               < 1750     to the right, improve=0.06233766, (0 missing)
##       description_length < 1769.5   to the right, improve=0.03507295, (0 missing)
##       reward_length      < 3103     to the left,  improve=0.03507295, (0 missing)
##       mo_launched        splits as  -L--LL-R--R-, improve=0.03384270, (0 missing)
## 
## Node number 51110: 15 observations
##   mean=0.4666667, MSE=0.2488889 
## 
## Node number 51111: 27 observations
##   mean=0.8148148, MSE=0.1508916 
## 
## Node number 51156: 24 observations,    complexity param=0.0001336597
##   mean=0.375, MSE=0.234375 
##   left son=102312 (8 obs) right son=102313 (16 obs)
##   Primary splits:
##       category          splits as  L---L-----R----, improve=0.3000000, (0 missing)
##       mo_launched       splits as  R-LL--L-LR-L, improve=0.2022409, (0 missing)
##       goal              < 1625.5   to the right, improve=0.1542857, (0 missing)
##       campaign_duration < 30.02    to the right, improve=0.1333333, (0 missing)
##       reward_length     < 3641.5   to the right, improve=0.1048951, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  R-RL--L-RR-R, agree=0.792, adj=0.375, (0 split)
##       video_status       < 0.5      to the left,  agree=0.750, adj=0.250, (0 split)
##       description_length < 1442     to the right, agree=0.750, adj=0.250, (0 split)
##       campaign_duration  < 34.935   to the right, agree=0.708, adj=0.125, (0 split)
##       goal               < 2250     to the right, agree=0.708, adj=0.125, (0 split)
## 
## Node number 51157: 11 observations
##   mean=0.8181818, MSE=0.1487603 
## 
## Node number 51158: 74 observations,    complexity param=0.0001336597
##   mean=0.6351351, MSE=0.2317385 
##   left son=102316 (39 obs) right son=102317 (35 obs)
##   Primary splits:
##       reward_length      < 3580     to the left,  improve=0.07193747, (0 missing)
##       goal               < 3125     to the left,  improve=0.02222088, (0 missing)
##       description_length < 3408     to the right, improve=0.01923681, (0 missing)
##       social_media_count splits as  RLRL,         improve=0.01838718, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.01765245, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  L-RL--R-RL-R, agree=0.622, adj=0.200, (0 split)
##       social_media_count splits as  LRLL,         agree=0.595, adj=0.143, (0 split)
##       goal               < 2775     to the left,  agree=0.581, adj=0.114, (0 split)
##       description_length < 2345.5   to the left,  agree=0.581, adj=0.114, (0 split)
##       video_status       < 0.5      to the right, agree=0.541, adj=0.029, (0 split)
## 
## Node number 51159: 98 observations,    complexity param=0.0001336597
##   mean=0.7857143, MSE=0.1683673 
##   left son=102318 (76 obs) right son=102319 (22 obs)
##   Primary splits:
##       reward_length      < 3156.5   to the right, improve=0.07894737, (0 missing)
##       campaign_duration  < 37.76    to the right, improve=0.05009276, (0 missing)
##       social_media_count splits as  RRL-,         improve=0.03181629, (0 missing)
##       description_length < 2135.5   to the left,  improve=0.01802905, (0 missing)
##       goal               < 3265     to the left,  improve=0.01713972, (0 missing)
## 
## Node number 51398: 27 observations
##   mean=0.3703704, MSE=0.2331962 
## 
## Node number 51399: 8 observations
##   mean=0.875, MSE=0.109375 
## 
## Node number 51652: 62 observations,    complexity param=0.0001369433
##   mean=0.3548387, MSE=0.2289282 
##   left son=103304 (14 obs) right son=103305 (48 obs)
##   Primary splits:
##       description_length < 746      to the right, improve=0.10233360, (0 missing)
##       goal               < 675      to the right, improve=0.05455420, (0 missing)
##       reward_length      < 3080     to the left,  improve=0.05404521, (0 missing)
##       campaign_duration  < 29.995   to the left,  improve=0.03418561, (0 missing)
##       mo_launched        splits as  LL--LRL-LRRR, improve=0.03351382, (0 missing)
##   Surrogate splits:
##       mo_launched       splits as  RL--RRR-RRRR, agree=0.839, adj=0.286, (0 split)
##       campaign_duration < 29.975   to the left,  agree=0.823, adj=0.214, (0 split)
##       category          splits as  R---L---R-R-R--, agree=0.806, adj=0.143, (0 split)
##       usa               < 0.5      to the left,  agree=0.790, adj=0.071, (0 split)
## 
## Node number 51653: 35 observations
##   mean=0.6, MSE=0.24 
## 
## Node number 58162: 7 observations
##   mean=0.1428571, MSE=0.122449 
## 
## Node number 58163: 153 observations,    complexity param=0.0001170814
##   mean=0.4575163, MSE=0.2481951 
##   left son=116326 (16 obs) right son=116327 (137 obs)
##   Primary splits:
##       reward_length      < 4364     to the left,  improve=0.020263330, (0 missing)
##       description_length < 1847.5   to the left,  improve=0.016724970, (0 missing)
##       campaign_duration  < 28.88    to the right, improve=0.012039890, (0 missing)
##       usa                < 0.5      to the left,  improve=0.005701756, (0 missing)
##       goal               < 2550     to the right, improve=0.005095102, (0 missing)
## 
## Node number 58168: 8 observations
##   mean=0.125, MSE=0.109375 
## 
## Node number 58169: 31 observations
##   mean=0.5483871, MSE=0.2476587 
## 
## Node number 58170: 35 observations,    complexity param=0.0001201704
##   mean=0.5428571, MSE=0.2481633 
##   left son=116340 (11 obs) right son=116341 (24 obs)
##   Primary splits:
##       description_length < 1834     to the right, improve=0.13476870, (0 missing)
##       goal               < 2715.5   to the left,  improve=0.06167763, (0 missing)
##       campaign_duration  < 29.98    to the right, improve=0.03980263, (0 missing)
##       mo_launched        splits as  RR-R---L--L-, improve=0.03347874, (0 missing)
##       reward_length      < 5933.5   to the left,  improve=0.03222731, (0 missing)
##   Surrogate splits:
##       reward_length < 4758     to the left,  agree=0.743, adj=0.182, (0 split)
## 
## Node number 58171: 15 observations
##   mean=0.9333333, MSE=0.06222222 
## 
## Node number 58320: 13 observations
##   mean=0.1538462, MSE=0.1301775 
## 
## Node number 58321: 38 observations,    complexity param=0.0001348783
##   mean=0.5263158, MSE=0.2493075 
##   left son=116642 (10 obs) right son=116643 (28 obs)
##   Primary splits:
##       mo_launched        splits as  -LLLRRR-RR--, improve=0.15253970, (0 missing)
##       goal               < 2050     to the right, improve=0.06817901, (0 missing)
##       reward_length      < 4511     to the left,  improve=0.06817901, (0 missing)
##       description_length < 1312.5   to the left,  improve=0.04444444, (0 missing)
##       social_media_count splits as  LR--,         improve=0.02452107, (0 missing)
##   Surrogate splits:
##       description_length < 1456     to the right, agree=0.763, adj=0.1, (0 split)
## 
## Node number 58466: 12 observations
##   mean=0.1666667, MSE=0.1388889 
## 
## Node number 58467: 30 observations
##   mean=0.5333333, MSE=0.2488889 
## 
## Node number 59572: 15 observations
##   mean=0.1333333, MSE=0.1155556 
## 
## Node number 59573: 23 observations
##   mean=0.5652174, MSE=0.2457467 
## 
## Node number 60452: 160 observations,    complexity param=0.0001737559
##   mean=0.48125, MSE=0.2496484 
##   left son=120904 (96 obs) right son=120905 (64 obs)
##   Primary splits:
##       category           splits as  R-------L---L--, improve=0.05518177, (0 missing)
##       reward_length      < 6755.5   to the left,  improve=0.04505736, (0 missing)
##       description_length < 3526     to the left,  improve=0.03066813, (0 missing)
##       campaign_duration  < 42.285   to the right, improve=0.02590051, (0 missing)
##       goal               < 2350     to the right, improve=0.02589440, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 29.705   to the right, agree=0.662, adj=0.156, (0 split)
##       mo_launched        splits as  --R-L-L-L--R, agree=0.644, adj=0.109, (0 split)
##       description_length < 3741.5   to the left,  agree=0.625, adj=0.063, (0 split)
##       reward_length      < 12879.5  to the left,  agree=0.606, adj=0.016, (0 split)
## 
## Node number 60453: 215 observations,    complexity param=0.0001737559
##   mean=0.6046512, MSE=0.2390481 
##   left son=120906 (41 obs) right son=120907 (174 obs)
##   Primary splits:
##       social_media_count splits as  RLL-,         improve=0.03559051, (0 missing)
##       description_length < 2779.5   to the right, improve=0.02805570, (0 missing)
##       reward_length      < 6772     to the right, improve=0.02729751, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.02043771, (0 missing)
##       campaign_duration  < 54.12    to the right, improve=0.01857533, (0 missing)
## 
## Node number 60768: 9 observations
##   mean=0.2222222, MSE=0.1728395 
## 
## Node number 60769: 139 observations,    complexity param=0.0001427238
##   mean=0.6115108, MSE=0.2375653 
##   left son=121538 (106 obs) right son=121539 (33 obs)
##   Primary splits:
##       description_length < 3694     to the left,  improve=0.04076285, (0 missing)
##       mo_launched        splits as  -LRLRLLRLR--, improve=0.03535153, (0 missing)
##       reward_length      < 8202     to the left,  improve=0.03395141, (0 missing)
##       goal               < 1155.555 to the right, improve=0.02715407, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.01968463, (0 missing)
##   Surrogate splits:
##       mo_launched   splits as  -RLLLLLLLL--, agree=0.777, adj=0.061, (0 split)
##       reward_length < 6906.5   to the right, agree=0.770, adj=0.030, (0 split)
## 
## Node number 61848: 35 observations,    complexity param=0.0001084139
##   mean=0.3714286, MSE=0.2334694 
##   left son=123696 (26 obs) right son=123697 (9 obs)
##   Primary splits:
##       campaign_duration  < 45.99    to the left,  improve=0.12923610, (0 missing)
##       description_length < 1363     to the right, improve=0.10034710, (0 missing)
##       goal               < 1400     to the left,  improve=0.05945380, (0 missing)
##       reward_length      < 4397.5   to the right, improve=0.05026597, (0 missing)
##       mo_launched        splits as  ----L----R-R, improve=0.03525641, (0 missing)
##   Surrogate splits:
##       category splits as  ----L-----L--R-, agree=0.771, adj=0.111, (0 split)
##       goal     < 1600     to the left,  agree=0.771, adj=0.111, (0 split)
## 
## Node number 61849: 39 observations
##   mean=0.6153846, MSE=0.2366864 
## 
## Node number 61850: 19 observations
##   mean=0.5263158, MSE=0.2493075 
## 
## Node number 61851: 15 observations
##   mean=0.9333333, MSE=0.06222222 
## 
## Node number 62236: 16 observations
##   mean=0.375, MSE=0.234375 
## 
## Node number 62237: 64 observations
##   mean=0.71875, MSE=0.2021484 
## 
## Node number 64042: 61 observations,    complexity param=0.0001309726
##   mean=0.5737705, MSE=0.2445579 
##   left son=128084 (48 obs) right son=128085 (13 obs)
##   Primary splits:
##       campaign_duration  < 24.66    to the right, improve=0.13512430, (0 missing)
##       category           splits as  ------R---L----, improve=0.11532070, (0 missing)
##       social_media_count splits as  RLL-, improve=0.06255411, (0 missing)
##       description_length < 1074.5   to the right, improve=0.04398221, (0 missing)
##       reward_length      < 6499     to the left,  improve=0.04230945, (0 missing)
## 
## Node number 64043: 118 observations
##   mean=0.720339, MSE=0.2014507 
## 
## Node number 64072: 25 observations
##   mean=0.36, MSE=0.2304 
## 
## Node number 64073: 36 observations
##   mean=0.6666667, MSE=0.2222222 
## 
## Node number 64550: 9 observations
##   mean=0.3333333, MSE=0.2222222 
## 
## Node number 64551: 74 observations
##   mean=0.7027027, MSE=0.2089116 
## 
## Node number 64552: 63 observations
##   mean=0.5079365, MSE=0.249937 
## 
## Node number 64553: 29 observations,    complexity param=0.000104803
##   mean=0.7586207, MSE=0.1831153 
##   left son=129106 (10 obs) right son=129107 (19 obs)
##   Primary splits:
##       campaign_duration  < 43.77    to the right, improve=0.19224200, (0 missing)
##       social_media_count splits as  LRR-,         improve=0.07556080, (0 missing)
##       goal               < 3650     to the right, improve=0.06088716, (0 missing)
##       mo_launched        splits as  ----RRLLL---, improve=0.04947434, (0 missing)
##       reward_length      < 4659     to the left,  improve=0.02151770, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  ----RRRLR---, agree=0.759, adj=0.3, (0 split)
##       description_length < 8726     to the right, agree=0.724, adj=0.2, (0 split)
## 
## Node number 64554: 156 observations,    complexity param=0.0001199014
##   mean=0.6474359, MSE=0.2282627 
##   left son=129108 (76 obs) right son=129109 (80 obs)
##   Primary splits:
##       campaign_duration  < 30.005   to the right, improve=0.03740632, (0 missing)
##       reward_length      < 8072.5   to the left,  improve=0.02941339, (0 missing)
##       goal               < 1100     to the right, improve=0.02558310, (0 missing)
##       social_media_count splits as  LLLR,         improve=0.01914060, (0 missing)
##       description_length < 1473.5   to the right, improve=0.01572703, (0 missing)
##   Surrogate splits:
##       goal               < 1725     to the right, agree=0.577, adj=0.132, (0 split)
##       mo_launched        splits as  ----RRRRL--R, agree=0.564, adj=0.105, (0 split)
##       social_media_count splits as  RLRR,         agree=0.558, adj=0.092, (0 split)
##       description_length < 2039     to the left,  agree=0.558, adj=0.092, (0 split)
##       reward_length      < 7688     to the right, agree=0.545, adj=0.066, (0 split)
## 
## Node number 64555: 352 observations,    complexity param=0.0001081845
##   mean=0.7414773, MSE=0.1916887 
##   left son=129110 (341 obs) right son=129111 (11 obs)
##   Primary splits:
##       reward_length      < 5108.5   to the right, improve=0.011247060, (0 missing)
##       campaign_duration  < 38.795   to the right, improve=0.007093035, (0 missing)
##       goal               < 2450     to the left,  improve=0.005034163, (0 missing)
##       description_length < 3412     to the right, improve=0.004576598, (0 missing)
##       category           splits as  ----------L--R-, improve=0.003701150, (0 missing)
## 
## Node number 64560: 7 observations
##   mean=0.4285714, MSE=0.244898 
## 
## Node number 64561: 345 observations,    complexity param=0.00011046
##   mean=0.715942, MSE=0.203369 
##   left son=129122 (334 obs) right son=129123 (11 obs)
##   Primary splits:
##       description_length < 5854.5   to the left,  improve=0.013066980, (0 missing)
##       reward_length      < 6335     to the left,  improve=0.009854568, (0 missing)
##       category           splits as  ----------R--L-, improve=0.007979132, (0 missing)
##       mo_launched        splits as  LRLL-----LL-, improve=0.006067842, (0 missing)
##       goal               < 3482.5   to the right, improve=0.005626220, (0 missing)
## 
## Node number 64564: 55 observations
##   mean=0.6545455, MSE=0.2261157 
## 
## Node number 64565: 21 observations
##   mean=0.952381, MSE=0.04535147 
## 
## Node number 64642: 8 observations
##   mean=0.125, MSE=0.109375 
## 
## Node number 64643: 15 observations
##   mean=0.6666667, MSE=0.2222222 
## 
## Node number 64644: 48 observations,    complexity param=0.0001197088
##   mean=0.4791667, MSE=0.249566 
##   left son=129288 (17 obs) right son=129289 (31 obs)
##   Primary splits:
##       reward_length      < 6490     to the left,  improve=0.075244620, (0 missing)
##       description_length < 1327     to the right, improve=0.051423340, (0 missing)
##       mo_launched        splits as  ----R-RLLR--, improve=0.035010310, (0 missing)
##       goal               < 2875     to the right, improve=0.032197590, (0 missing)
##       campaign_duration  < 30.02    to the left,  improve=0.005395764, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  ----R-RLRR--, agree=0.708, adj=0.176, (0 split)
##       goal               < 3750     to the right, agree=0.667, adj=0.059, (0 split)
##       description_length < 1314.5   to the left,  agree=0.667, adj=0.059, (0 split)
## 
## Node number 64645: 14 observations
##   mean=0.7857143, MSE=0.1683673 
## 
## Node number 64668: 11 observations
##   mean=0.3636364, MSE=0.231405 
## 
## Node number 64669: 25 observations,    complexity param=0.0001096348
##   mean=0.76, MSE=0.1824 
##   left son=129338 (7 obs) right son=129339 (18 obs)
##   Primary splits:
##       reward_length      < 4270.5   to the left,  improve=0.23419660, (0 missing)
##       campaign_duration  < 31.085   to the left,  improve=0.21052630, (0 missing)
##       description_length < 1430     to the left,  improve=0.07581454, (0 missing)
##       goal               < 999.5    to the left,  improve=0.04702012, (0 missing)
##       social_media_count splits as  LR--,         improve=0.03412023, (0 missing)
##   Surrogate splits:
##       campaign_duration < 29.985   to the left,  agree=0.84, adj=0.429, (0 split)
## 
## Node number 64704: 9 observations
##   mean=0, MSE=0 
## 
## Node number 64705: 14 observations
##   mean=0.5714286, MSE=0.244898 
## 
## Node number 64738: 22 observations,    complexity param=0.0001289536
##   mean=0.6363636, MSE=0.231405 
##   left son=129476 (9 obs) right son=129477 (13 obs)
##   Primary splits:
##       description_length < 3113     to the left,  improve=0.27472530, (0 missing)
##       mo_launched        splits as  -RLL-R-RRLLR, improve=0.20119050, (0 missing)
##       campaign_duration  < 30.02    to the left,  improve=0.09829932, (0 missing)
##       reward_length      < 6796.5   to the left,  improve=0.04591837, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  -RRL-R-RRRLR, agree=0.773, adj=0.444, (0 split)
##       goal               < 800      to the left,  agree=0.727, adj=0.333, (0 split)
##       reward_length      < 6698     to the left,  agree=0.682, adj=0.222, (0 split)
##       social_media_count splits as  RL--,         agree=0.636, adj=0.111, (0 split)
## 
## Node number 64739: 22 observations
##   mean=0.9545455, MSE=0.04338843 
## 
## Node number 64744: 16 observations
##   mean=0.375, MSE=0.234375 
## 
## Node number 64745: 85 observations,    complexity param=0.0001591987
##   mean=0.7764706, MSE=0.173564 
##   left son=129490 (12 obs) right son=129491 (73 obs)
##   Primary splits:
##       reward_length      < 4545.5   to the left,  improve=0.12261130, (0 missing)
##       social_media_count splits as  RLL-,         improve=0.05520795, (0 missing)
##       campaign_duration  < 44.035   to the right, improve=0.03532896, (0 missing)
##       description_length < 2571.5   to the right, improve=0.03464349, (0 missing)
##       mo_launched        splits as  ----R-LLL--L, improve=0.02705190, (0 missing)
## 
## Node number 64800: 30 observations,    complexity param=0.0001237837
##   mean=0.4666667, MSE=0.2488889 
##   left son=129600 (10 obs) right son=129601 (20 obs)
##   Primary splits:
##       mo_launched        splits as  ---RR-L-RLR-, improve=0.27008930, (0 missing)
##       description_length < 2377.5   to the left,  improve=0.10937500, (0 missing)
##       campaign_duration  < 30.02    to the right, improve=0.06795410, (0 missing)
##       reward_length      < 12415.5  to the left,  improve=0.04761905, (0 missing)
##       social_media_count splits as  L-RL,         improve=0.03662744, (0 missing)
##   Surrogate splits:
##       social_media_count splits as  R-RL, agree=0.733, adj=0.2, (0 split)
##       description_length < 1875.5   to the left,  agree=0.733, adj=0.2, (0 split)
##       category           splits as  ----L-----R--R-, agree=0.700, adj=0.1, (0 split)
##       reward_length      < 11541    to the left,  agree=0.700, adj=0.1, (0 split)
## 
## Node number 64801: 58 observations,    complexity param=0.0001053334
##   mean=0.6896552, MSE=0.2140309 
##   left son=129602 (49 obs) right son=129603 (9 obs)
##   Primary splits:
##       reward_length      < 10779.5  to the left,  improve=0.08265306, (0 missing)
##       mo_launched        splits as  ---RL-R-RLL-, improve=0.03728214, (0 missing)
##       goal               < 3980     to the left,  improve=0.02686012, (0 missing)
##       description_length < 3249     to the left,  improve=0.02568056, (0 missing)
##       social_media_count splits as  L-RL,         improve=0.02516103, (0 missing)
## 
## Node number 82806: 20 observations
##   mean=0.15, MSE=0.1275 
## 
## Node number 82807: 16 observations
##   mean=0.625, MSE=0.234375 
## 
## Node number 82812: 33 observations,    complexity param=0.0001022147
##   mean=0.3030303, MSE=0.2112029 
##   left son=165624 (20 obs) right son=165625 (13 obs)
##   Primary splits:
##       reward_length      < 6940     to the right, improve=0.17058530, (0 missing)
##       campaign_duration  < 32       to the right, improve=0.08057864, (0 missing)
##       description_length < 2578.5   to the right, improve=0.07986767, (0 missing)
##       mo_launched        splits as  ---R-LLR-L-L, improve=0.07986767, (0 missing)
##       goal               < 24500    to the left,  improve=0.05947890, (0 missing)
##   Surrogate splits:
##       video_status       < 0.5      to the right, agree=0.758, adj=0.385, (0 split)
##       campaign_duration  < 45.86    to the left,  agree=0.697, adj=0.231, (0 split)
##       mo_launched        splits as  ---R-RLL-L-L, agree=0.697, adj=0.231, (0 split)
##       description_length < 2183.5   to the right, agree=0.667, adj=0.154, (0 split)
##       goal               < 19250    to the right, agree=0.636, adj=0.077, (0 split)
## 
## Node number 82813: 33 observations,    complexity param=0.0001022147
##   mean=0.5454545, MSE=0.2479339 
##   left son=165626 (22 obs) right son=165627 (11 obs)
##   Primary splits:
##       goal               < 23250    to the right, improve=0.15000000, (0 missing)
##       mo_launched        splits as  ---L-RLL-R-R, improve=0.06666667, (0 missing)
##       description_length < 3017     to the right, improve=0.04938272, (0 missing)
##       reward_length      < 9279.5   to the right, improve=0.03386243, (0 missing)
##       category           splits as  ------------LR-, improve=0.02222222, (0 missing)
##   Surrogate splits:
##       mo_launched splits as  ---L-LLL-L-R, agree=0.697, adj=0.091, (0 split)
## 
## Node number 82836: 66 observations,    complexity param=0.0001009297
##   mean=0.1818182, MSE=0.1487603 
##   left son=165672 (35 obs) right son=165673 (31 obs)
##   Primary splits:
##       goal               < 11750    to the left,  improve=0.11797240, (0 missing)
##       reward_length      < 7212     to the left,  improve=0.05555556, (0 missing)
##       video_status       < 0.5      to the right, improve=0.04856067, (0 missing)
##       campaign_duration  < 27.25    to the right, improve=0.03460249, (0 missing)
##       description_length < 3326.5   to the left,  improve=0.03429355, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 29.7     to the right, agree=0.606, adj=0.161, (0 split)
##       description_length < 2449.5   to the right, agree=0.591, adj=0.129, (0 split)
##       social_media_count splits as  LRR-,         agree=0.576, adj=0.097, (0 split)
##       reward_length      < 6806.5   to the left,  agree=0.576, adj=0.097, (0 split)
##       mo_launched        splits as  -L--L-L---R-, agree=0.561, adj=0.065, (0 split)
## 
## Node number 82837: 7 observations
##   mean=0.5714286, MSE=0.244898 
## 
## Node number 83724: 10 observations
##   mean=0.1, MSE=0.09 
## 
## Node number 83725: 51 observations,    complexity param=0.0001089864
##   mean=0.4509804, MSE=0.2475971 
##   left son=167450 (44 obs) right son=167451 (7 obs)
##   Primary splits:
##       reward_length      < 7599.5   to the right, improve=0.10599840, (0 missing)
##       campaign_duration  < 31.04    to the left,  improve=0.05626334, (0 missing)
##       description_length < 8106.5   to the right, improve=0.02554849, (0 missing)
##       goal               < 29000    to the right, improve=0.01499556, (0 missing)
##       mo_launched        splits as  --LL-RR-R-L-, improve=0.01499556, (0 missing)
## 
## Node number 85088: 67 observations
##   mean=0.1641791, MSE=0.1372243 
## 
## Node number 85089: 60 observations,    complexity param=0.0001049444
##   mean=0.3333333, MSE=0.2222222 
##   left son=170178 (33 obs) right son=170179 (27 obs)
##   Primary splits:
##       reward_length      < 6709.5   to the left,  improve=0.08080808, (0 missing)
##       mo_launched        splits as  L-L--RL--L-R, improve=0.06839945, (0 missing)
##       description_length < 2188     to the left,  improve=0.03369272, (0 missing)
##       campaign_duration  < 45.52    to the right, improve=0.03125000, (0 missing)
##       goal               < 7750     to the right, improve=0.01600000, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  L-L--RL--L-R, agree=0.667, adj=0.259, (0 split)
##       campaign_duration  < 59.56    to the left,  agree=0.583, adj=0.074, (0 split)
##       description_length < 1650     to the right, agree=0.583, adj=0.074, (0 split)
## 
## Node number 85090: 28 observations
##   mean=0.1785714, MSE=0.1466837 
## 
## Node number 85091: 81 observations,    complexity param=0.0001190715
##   mean=0.4444444, MSE=0.2469136 
##   left son=170182 (73 obs) right son=170183 (8 obs)
##   Primary splits:
##       campaign_duration  < 52.275   to the left,  improve=0.04143836, (0 missing)
##       reward_length      < 5455.5   to the right, improve=0.04143836, (0 missing)
##       description_length < 6357     to the right, improve=0.03535068, (0 missing)
##       mo_launched        splits as  L-L--LR-----, improve=0.02342579, (0 missing)
##       goal               < 7250     to the right, improve=0.01111111, (0 missing)
## 
## Node number 85178: 8 observations
##   mean=0.125, MSE=0.109375 
## 
## Node number 85179: 149 observations,    complexity param=0.0001405862
##   mean=0.5369128, MSE=0.2486374 
##   left son=170358 (137 obs) right son=170359 (12 obs)
##   Primary splits:
##       campaign_duration  < 28.96    to the right, improve=0.05080409, (0 missing)
##       reward_length      < 6211.5   to the right, improve=0.02196933, (0 missing)
##       description_length < 4688     to the right, improve=0.01624036, (0 missing)
##       goal               < 4997.5   to the right, improve=0.01599591, (0 missing)
##       mo_launched        splits as  -R-LR--RR-L-, improve=0.01180242, (0 missing)
## 
## Node number 85362: 37 observations
##   mean=0.4864865, MSE=0.2498174 
## 
## Node number 85363: 8 observations
##   mean=0.875, MSE=0.109375 
## 
## Node number 85364: 28 observations,    complexity param=0.0001116228
##   mean=0.4285714, MSE=0.244898 
##   left son=170728 (18 obs) right son=170729 (10 obs)
##   Primary splits:
##       mo_launched        splits as  L-----LRLLLR, improve=0.16712960, (0 missing)
##       reward_length      < 6432     to the left,  improve=0.11408200, (0 missing)
##       campaign_duration  < 28.735   to the left,  improve=0.05208333, (0 missing)
##       description_length < 1742     to the right, improve=0.03609626, (0 missing)
##       goal               < 5637.5   to the right, improve=0.02777778, (0 missing)
##   Surrogate splits:
##       description_length < 1692     to the right, agree=0.786, adj=0.4, (0 split)
##       reward_length      < 6299     to the left,  agree=0.750, adj=0.3, (0 split)
##       goal               < 5250     to the left,  agree=0.679, adj=0.1, (0 split)
## 
## Node number 85365: 7 observations
##   mean=0.8571429, MSE=0.122449 
## 
## Node number 85440: 13 observations
##   mean=0.2307692, MSE=0.1775148 
## 
## Node number 85441: 33 observations,    complexity param=0.000101404
##   mean=0.5151515, MSE=0.2497704 
##   left son=170882 (14 obs) right son=170883 (19 obs)
##   Primary splits:
##       campaign_duration  < 30.7     to the left,  improve=0.15529630, (0 missing)
##       reward_length      < 5910     to the right, improve=0.12618170, (0 missing)
##       description_length < 4404     to the right, improve=0.07563025, (0 missing)
##       goal               < 6400     to the left,  improve=0.02941176, (0 missing)
##       mo_launched        splits as  -LLRLR------, improve=0.02614536, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  -RLRRR------, agree=0.636, adj=0.143, (0 split)
##       goal               < 5025     to the right, agree=0.636, adj=0.143, (0 split)
##       description_length < 3235     to the right, agree=0.636, adj=0.143, (0 split)
##       social_media_count splits as  R-L-,         agree=0.606, adj=0.071, (0 split)
##       reward_length      < 5910     to the right, agree=0.606, adj=0.071, (0 split)
## 
## Node number 86000: 20 observations
##   mean=0.35, MSE=0.2275 
## 
## Node number 86001: 7 observations
##   mean=0.8571429, MSE=0.122449 
## 
## Node number 88664: 19 observations
##   mean=0.1578947, MSE=0.132964 
## 
## Node number 88665: 34 observations,    complexity param=0.000125572
##   mean=0.5882353, MSE=0.2422145 
##   left son=177330 (23 obs) right son=177331 (11 obs)
##   Primary splits:
##       description_length < 5321.5   to the right, improve=0.20327500, (0 missing)
##       reward_length      < 16963    to the right, improve=0.06628788, (0 missing)
##       goal               < 6500     to the left,  improve=0.03073016, (0 missing)
##       mo_launched        splits as  --L-LR----RL, improve=0.01428571, (0 missing)
##       campaign_duration  < 29.82    to the left,  improve=0.00989011, (0 missing)
##   Surrogate splits:
##       reward_length      < 14475    to the right, agree=0.765, adj=0.273, (0 split)
##       usa                < 0.5      to the right, agree=0.706, adj=0.091, (0 split)
##       social_media_count splits as  LLR-, agree=0.706, adj=0.091, (0 split)
##       category           splits as  R-----------L--, agree=0.706, adj=0.091, (0 split)
## 
## Node number 88666: 23 observations,    complexity param=0.0001134458
##   mean=0.5217391, MSE=0.2495274 
##   left son=177332 (7 obs) right son=177333 (16 obs)
##   Primary splits:
##       description_length < 6353.5   to the right, improve=0.25169100, (0 missing)
##       campaign_duration  < 35.135   to the right, improve=0.15782830, (0 missing)
##       reward_length      < 15340    to the right, improve=0.09796037, (0 missing)
##       mo_launched        splits as  --L-LR----LL, improve=0.06500271, (0 missing)
##       goal               < 11750    to the right, improve=0.04568765, (0 missing)
##   Surrogate splits:
##       goal        < 15750    to the right, agree=0.783, adj=0.286, (0 split)
##       mo_launched splits as  --L-RR----RR, agree=0.739, adj=0.143, (0 split)
## 
## Node number 88667: 12 observations
##   mean=0.8333333, MSE=0.1388889 
## 
## Node number 89092: 14 observations
##   mean=0.07142857, MSE=0.06632653 
## 
## Node number 89093: 49 observations,    complexity param=0.0001208038
##   mean=0.3673469, MSE=0.2324032 
##   left son=178186 (41 obs) right son=178187 (8 obs)
##   Primary splits:
##       description_length < 5360.5   to the right, improve=0.12293470, (0 missing)
##       reward_length      < 12161    to the right, improve=0.07168459, (0 missing)
##       goal               < 15500    to the right, improve=0.03823178, (0 missing)
##       mo_launched        splits as  R-LL--LL-RL-, improve=0.02455681, (0 missing)
##       campaign_duration  < 34.005   to the left,  improve=0.01872584, (0 missing)
## 
## Node number 95900: 15 observations
##   mean=0.2666667, MSE=0.1955556 
## 
## Node number 95901: 7 observations
##   mean=0.8571429, MSE=0.122449 
## 
## Node number 95936: 99 observations,    complexity param=0.0001247708
##   mean=0.3636364, MSE=0.231405 
##   left son=191872 (8 obs) right son=191873 (91 obs)
##   Primary splits:
##       description_length < 1127     to the left,  improve=0.05023548, (0 missing)
##       reward_length      < 6329     to the left,  improve=0.02367979, (0 missing)
##       campaign_duration  < 29.5     to the right, improve=0.02295918, (0 missing)
##       mo_launched        splits as  -----LLRLL-L, improve=0.01323529, (0 missing)
##       category           splits as  ------L---R----, improve=0.01247330, (0 missing)
## 
## Node number 95937: 8 observations
##   mean=0.75, MSE=0.1875 
## 
## Node number 95938: 37 observations,    complexity param=0.0001115533
##   mean=0.4594595, MSE=0.2483565 
##   left son=191876 (24 obs) right son=191877 (13 obs)
##   Primary splits:
##       social_media_count splits as  LRR-,         improve=0.11825040, (0 missing)
##       description_length < 1559     to the right, improve=0.11406490, (0 missing)
##       mo_launched        splits as  -L-R------R-, improve=0.07284080, (0 missing)
##       campaign_duration  < 29.98    to the left,  improve=0.04367201, (0 missing)
##       goal               < 5600     to the right, improve=0.03522532, (0 missing)
##   Surrogate splits:
##       description_length < 1084     to the right, agree=0.703, adj=0.154, (0 split)
##       reward_length      < 6401     to the left,  agree=0.703, adj=0.154, (0 split)
##       campaign_duration  < 26.52    to the right, agree=0.676, adj=0.077, (0 split)
## 
## Node number 95939: 24 observations
##   mean=0.75, MSE=0.1875 
## 
## Node number 95942: 33 observations
##   mean=0.4545455, MSE=0.2479339 
## 
## Node number 95943: 71 observations,    complexity param=0.0001179638
##   mean=0.6760563, MSE=0.2190042 
##   left son=191886 (27 obs) right son=191887 (44 obs)
##   Primary splits:
##       description_length < 1300     to the left,  improve=0.10607970, (0 missing)
##       reward_length      < 5581     to the left,  improve=0.07660801, (0 missing)
##       campaign_duration  < 59.98    to the left,  improve=0.02750781, (0 missing)
##       mo_launched        splits as  -R---LRRLL-L, improve=0.01172352, (0 missing)
##       goal               < 5100     to the left,  improve=0.00479206, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  -R---RLLRR-R, agree=0.690, adj=0.185, (0 split)
##       campaign_duration  < 34.155   to the left,  agree=0.662, adj=0.111, (0 split)
##       reward_length      < 5074     to the left,  agree=0.648, adj=0.074, (0 split)
##       usa                < 0.5      to the left,  agree=0.634, adj=0.037, (0 split)
##       social_media_count splits as  RRRL,         agree=0.634, adj=0.037, (0 split)
## 
## Node number 95948: 13 observations
##   mean=0.3846154, MSE=0.2366864 
## 
## Node number 95949: 19 observations
##   mean=0.7894737, MSE=0.166205 
## 
## Node number 96200: 7 observations
##   mean=0.1428571, MSE=0.122449 
## 
## Node number 96201: 28 observations,    complexity param=0.0001037198
##   mean=0.5714286, MSE=0.244898 
##   left son=192402 (20 obs) right son=192403 (8 obs)
##   Primary splits:
##       description_length < 1394.5   to the left,  improve=0.15052080, (0 missing)
##       campaign_duration  < 44.33    to the right, improve=0.11111110, (0 missing)
##       goal               < 5250     to the left,  improve=0.06666667, (0 missing)
##       mo_launched        splits as  ---LR-RLR--L, improve=0.03118908, (0 missing)
##       reward_length      < 12505.5  to the left,  improve=0.03118908, (0 missing)
##   Surrogate splits:
##       campaign_duration < 26.975   to the right, agree=0.75, adj=0.125, (0 split)
##       category          splits as  ----R-L---L----, agree=0.75, adj=0.125, (0 split)
## 
## Node number 96310: 15 observations
##   mean=0.3333333, MSE=0.2222222 
## 
## Node number 96311: 11 observations
##   mean=0.8181818, MSE=0.1487603 
## 
## Node number 96314: 30 observations
##   mean=0.4666667, MSE=0.2488889 
## 
## Node number 96315: 18 observations
##   mean=0.7777778, MSE=0.1728395 
## 
## Node number 96328: 22 observations
##   mean=0, MSE=0 
## 
## Node number 96329: 28 observations,    complexity param=0.000107199
##   mean=0.2857143, MSE=0.2040816 
##   left son=192658 (9 obs) right son=192659 (19 obs)
##   Primary splits:
##       mo_launched        splits as  RRLLRLR-RR--, improve=0.18947370, (0 missing)
##       campaign_duration  < 30.55    to the left,  improve=0.15052080, (0 missing)
##       description_length < 2367     to the right, improve=0.09000000, (0 missing)
##       reward_length      < 7645     to the left,  improve=0.03422460, (0 missing)
##       goal               < 21000    to the right, improve=0.03333333, (0 missing)
##   Surrogate splits:
##       description_length < 2155.5   to the left,  agree=0.714, adj=0.111, (0 split)
##       reward_length      < 7072     to the left,  agree=0.714, adj=0.111, (0 split)
## 
## Node number 96330: 17 observations
##   mean=0.2941176, MSE=0.2076125 
## 
## Node number 96331: 8 observations
##   mean=0.875, MSE=0.109375 
## 
## Node number 96332: 7 observations
##   mean=0, MSE=0 
## 
## Node number 96333: 17 observations
##   mean=0.4705882, MSE=0.2491349 
## 
## Node number 96334: 44 observations
##   mean=0.4772727, MSE=0.2494835 
## 
## Node number 96335: 18 observations
##   mean=0.8333333, MSE=0.1388889 
## 
## Node number 96356: 61 observations,    complexity param=0.000163713
##   mean=0.3278689, MSE=0.2203709 
##   left son=192712 (17 obs) right son=192713 (44 obs)
##   Primary splits:
##       mo_launched        splits as  R--RRRR-L-L-, improve=0.126909200, (0 missing)
##       description_length < 3799.5   to the right, improve=0.084427770, (0 missing)
##       reward_length      < 14219.5  to the right, improve=0.063233970, (0 missing)
##       campaign_duration  < 33.075   to the left,  improve=0.019391940, (0 missing)
##       social_media_count splits as  RLR-,         improve=0.008596186, (0 missing)
##   Surrogate splits:
##       usa                < 0.5      to the left,  agree=0.754, adj=0.118, (0 split)
##       description_length < 3788.5   to the right, agree=0.754, adj=0.118, (0 split)
## 
## Node number 96357: 83 observations,    complexity param=0.000163713
##   mean=0.5542169, MSE=0.2470605 
##   left son=192714 (18 obs) right son=192715 (65 obs)
##   Primary splits:
##       description_length < 2291     to the left,  improve=0.08565539, (0 missing)
##       mo_launched        splits as  R--LRRR-R-R-, improve=0.03337692, (0 missing)
##       campaign_duration  < 21.69    to the left,  improve=0.01386702, (0 missing)
##       reward_length      < 7161     to the left,  improve=0.01350648, (0 missing)
##       goal               < 16172.5  to the left,  improve=0.01178388, (0 missing)
## 
## Node number 96358: 18 observations
##   mean=0.4444444, MSE=0.2469136 
## 
## Node number 96359: 21 observations
##   mean=0.8571429, MSE=0.122449 
## 
## Node number 96706: 12 observations
##   mean=0.25, MSE=0.1875 
## 
## Node number 96707: 40 observations,    complexity param=0.0001064015
##   mean=0.625, MSE=0.234375 
##   left son=193414 (11 obs) right son=193415 (29 obs)
##   Primary splits:
##       description_length < 6609.5   to the right, improve=0.11055380, (0 missing)
##       reward_length      < 9856.5   to the right, improve=0.08626045, (0 missing)
##       mo_launched        splits as  R--LL---LR--, improve=0.04877345, (0 missing)
##       goal               < 38600    to the right, improve=0.03492063, (0 missing)
##       social_media_count splits as  LRLR,         improve=0.03004444, (0 missing)
##   Surrogate splits:
##       reward_length < 7855     to the left,  agree=0.775, adj=0.182, (0 split)
## 
## Node number 96726: 48 observations,    complexity param=0.0001069296
##   mean=0.7083333, MSE=0.2065972 
##   left son=193452 (28 obs) right son=193453 (20 obs)
##   Primary splits:
##       description_length < 7365     to the right, improve=0.12701080, (0 missing)
##       reward_length      < 10133.5  to the right, improve=0.07002801, (0 missing)
##       mo_launched        splits as  -R--RL-LR---, improve=0.03001200, (0 missing)
##       social_media_count splits as  RLL-,         improve=0.01680672, (0 missing)
##       goal               < 21000    to the right, improve=0.01553237, (0 missing)
##   Surrogate splits:
##       mo_launched       splits as  -L--LL-LR---, agree=0.667, adj=0.20, (0 split)
##       campaign_duration < 32.815   to the left,  agree=0.646, adj=0.15, (0 split)
##       reward_length     < 7692.5   to the right, agree=0.646, adj=0.15, (0 split)
##       goal              < 13500    to the right, agree=0.604, adj=0.05, (0 split)
## 
## Node number 96727: 34 observations
##   mean=0.9117647, MSE=0.08044983 
## 
## Node number 96736: 12 observations
##   mean=0.3333333, MSE=0.2222222 
## 
## Node number 96737: 25 observations,    complexity param=0.000101825
##   mean=0.64, MSE=0.2304 
##   left son=193474 (14 obs) right son=193475 (11 obs)
##   Primary splits:
##       description_length < 7706     to the left,  improve=0.24693360, (0 missing)
##       mo_launched        splits as  LL--R-R---L-, improve=0.09336420, (0 missing)
##       social_media_count splits as  LRL-,         improve=0.07958554, (0 missing)
##       reward_length      < 23014.5  to the left,  improve=0.04847756, (0 missing)
##       goal               < 35500    to the right, improve=0.04003268, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 31.765   to the left,  agree=0.68, adj=0.273, (0 split)
##       social_media_count splits as  LRR-,         agree=0.64, adj=0.182, (0 split)
##       goal               < 45500    to the left,  agree=0.64, adj=0.182, (0 split)
##       reward_length      < 24115.5  to the left,  agree=0.64, adj=0.182, (0 split)
##       usa                < 0.5      to the right, agree=0.60, adj=0.091, (0 split)
## 
## Node number 96868: 24 observations,    complexity param=0.0001375129
##   mean=0.3333333, MSE=0.2222222 
##   left son=193736 (15 obs) right son=193737 (9 obs)
##   Primary splits:
##       goal               < 5347.5   to the right, improve=0.30000000, (0 missing)
##       mo_launched        splits as  ----R-R-LLL-, improve=0.13333330, (0 missing)
##       reward_length      < 12426    to the left,  improve=0.06250000, (0 missing)
##       campaign_duration  < 49.44    to the right, improve=0.05714286, (0 missing)
##       description_length < 3551     to the right, improve=0.03125000, (0 missing)
##   Surrogate splits:
##       mo_launched       splits as  ----R-R-LLL-, agree=0.833, adj=0.556, (0 split)
##       reward_length     < 7045.5   to the right, agree=0.792, adj=0.444, (0 split)
##       campaign_duration < 40.02    to the right, agree=0.708, adj=0.222, (0 split)
## 
## Node number 96869: 218 observations,    complexity param=0.0001167596
##   mean=0.6055046, MSE=0.2388688 
##   left son=193738 (164 obs) right son=193739 (54 obs)
##   Primary splits:
##       reward_length      < 11640.5  to the left,  improve=0.018778610, (0 missing)
##       goal               < 11545    to the right, improve=0.013014290, (0 missing)
##       description_length < 1939.5   to the right, improve=0.012658190, (0 missing)
##       campaign_duration  < 44.505   to the left,  improve=0.007855972, (0 missing)
##       social_media_count splits as  LRRR,         improve=0.005234900, (0 missing)
##   Surrogate splits:
##       social_media_count splits as  LLLR, agree=0.761, adj=0.037, (0 split)
## 
## Node number 96872: 13 observations
##   mean=0.07692308, MSE=0.07100592 
## 
## Node number 96873: 24 observations
##   mean=0.4583333, MSE=0.2482639 
## 
## Node number 96874: 25 observations,    complexity param=0.0001341429
##   mean=0.48, MSE=0.2496 
##   left son=193748 (10 obs) right son=193749 (15 obs)
##   Primary splits:
##       mo_launched        splits as  RRLR-R-L---L, improve=0.20940170, (0 missing)
##       campaign_duration  < 60.705   to the left,  improve=0.07852564, (0 missing)
##       reward_length      < 6061.5   to the left,  improve=0.07852564, (0 missing)
##       goal               < 9000     to the right, improve=0.05881156, (0 missing)
##       description_length < 3021     to the right, improve=0.02078620, (0 missing)
##   Surrogate splits:
##       reward_length      < 5360.5   to the left,  agree=0.72, adj=0.3, (0 split)
##       campaign_duration  < 59.39    to the left,  agree=0.68, adj=0.2, (0 split)
##       goal               < 5449.5   to the left,  agree=0.68, adj=0.2, (0 split)
##       description_length < 2037     to the left,  agree=0.68, adj=0.2, (0 split)
##       social_media_count splits as  RLR-,         agree=0.64, adj=0.1, (0 split)
## 
## Node number 96875: 24 observations
##   mean=0.9166667, MSE=0.07638889 
## 
## Node number 97160: 59 observations,    complexity param=0.0001779633
##   mean=0.4067797, MSE=0.24131 
##   left son=194320 (46 obs) right son=194321 (13 obs)
##   Primary splits:
##       campaign_duration  < 29.98    to the right, improve=0.15385410, (0 missing)
##       description_length < 2074.5   to the right, improve=0.07271380, (0 missing)
##       reward_length      < 5423     to the right, improve=0.06208378, (0 missing)
##       mo_launched        splits as  LRRRLR-RLLL-, improve=0.06177295, (0 missing)
##       goal               < 7750     to the right, improve=0.03157434, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  LRLLLL-LLLL-, agree=0.814, adj=0.154, (0 split)
##       description_length < 1980     to the right, agree=0.797, adj=0.077, (0 split)
## 
## Node number 97161: 36 observations,    complexity param=0.0001779633
##   mean=0.6388889, MSE=0.2307099 
##   left son=194322 (26 obs) right son=194323 (10 obs)
##   Primary splits:
##       reward_length      < 6687.5   to the right, improve=0.21739130, (0 missing)
##       description_length < 2270     to the right, improve=0.16722410, (0 missing)
##       mo_launched        splits as  RRRLRR-RLLR-, improve=0.06480997, (0 missing)
##       social_media_count splits as  RLRL,         improve=0.05462653, (0 missing)
##       campaign_duration  < 29.98    to the left,  improve=0.03215848, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  RLRLLR-LLLR-, agree=0.833, adj=0.4, (0 split)
##       social_media_count splits as  LLRL,         agree=0.750, adj=0.1, (0 split)
##       goal               < 7250     to the right, agree=0.750, adj=0.1, (0 split)
##       description_length < 2938.5   to the left,  agree=0.750, adj=0.1, (0 split)
## 
## Node number 97162: 15 observations
##   mean=0.4666667, MSE=0.2488889 
## 
## Node number 97163: 66 observations,    complexity param=0.0001564145
##   mean=0.8030303, MSE=0.1581726 
##   left son=194326 (40 obs) right son=194327 (26 obs)
##   Primary splits:
##       reward_length      < 6376.5   to the right, improve=0.15943400, (0 missing)
##       mo_launched        splits as  RRRRRL-RRRL-, improve=0.08388970, (0 missing)
##       goal               < 9500     to the right, improve=0.05621585, (0 missing)
##       social_media_count splits as  RLLL,         improve=0.05460260, (0 missing)
##       description_length < 3621     to the right, improve=0.03658200, (0 missing)
##   Surrogate splits:
##       description_length < 3525     to the right, agree=0.727, adj=0.308, (0 split)
##       mo_launched        splits as  LLLRLL-LRLL-, agree=0.682, adj=0.192, (0 split)
##       campaign_duration  < 23.725   to the right, agree=0.636, adj=0.077, (0 split)
## 
## Node number 97170: 34 observations,    complexity param=0.00011519
##   mean=0.5294118, MSE=0.2491349 
##   left son=194340 (21 obs) right son=194341 (13 obs)
##   Primary splits:
##       campaign_duration  < 25.535   to the right, improve=0.14290800, (0 missing)
##       description_length < 6302     to the left,  improve=0.11177250, (0 missing)
##       reward_length      < 18541    to the left,  improve=0.09603175, (0 missing)
##       mo_launched        splits as  L-R-R---RLL-, improve=0.08916860, (0 missing)
##       social_media_count splits as  LRLL,         improve=0.06593407, (0 missing)
##   Surrogate splits:
##       reward_length      < 20522.5  to the left,  agree=0.765, adj=0.385, (0 split)
##       description_length < 6537.5   to the left,  agree=0.735, adj=0.308, (0 split)
##       goal               < 11950    to the left,  agree=0.676, adj=0.154, (0 split)
##       mo_launched        splits as  L-L-L---LLR-, agree=0.647, adj=0.077, (0 split)
## 
## Node number 97171: 219 observations,    complexity param=0.00011519
##   mean=0.6757991, MSE=0.2190947 
##   left son=194342 (86 obs) right son=194343 (133 obs)
##   Primary splits:
##       social_media_count splits as  RLLR,         improve=0.014939620, (0 missing)
##       description_length < 6508.5   to the right, improve=0.013290670, (0 missing)
##       campaign_duration  < 29.7     to the right, improve=0.012226260, (0 missing)
##       goal               < 9849.5   to the right, improve=0.010525390, (0 missing)
##       reward_length      < 12013.5  to the right, improve=0.008882122, (0 missing)
##   Surrogate splits:
##       description_length < 2193     to the left,  agree=0.635, adj=0.070, (0 split)
##       mo_launched        splits as  R-R-R---RRL-, agree=0.612, adj=0.012, (0 split)
##       reward_length      < 27002    to the right, agree=0.612, adj=0.012, (0 split)
## 
## Node number 97172: 19 observations
##   mean=0.4210526, MSE=0.2437673 
## 
## Node number 97173: 28 observations
##   mean=0.75, MSE=0.1875 
## 
## Node number 97174: 110 observations,    complexity param=0.0001364298
##   mean=0.7181818, MSE=0.2023967 
##   left son=194348 (36 obs) right son=194349 (74 obs)
##   Primary splits:
##       reward_length      < 8510.5   to the left,  improve=0.06356949, (0 missing)
##       goal               < 5450     to the right, improve=0.04910321, (0 missing)
##       mo_launched        splits as  R-L-L---RLR-, improve=0.01867828, (0 missing)
##       campaign_duration  < 25.02    to the left,  improve=0.01844691, (0 missing)
##       description_length < 2742     to the right, improve=0.01616044, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 24.8     to the left,  agree=0.691, adj=0.056, (0 split)
##       description_length < 3034.5   to the right, agree=0.682, adj=0.028, (0 split)
## 
## Node number 97175: 163 observations,    complexity param=0.0001190178
##   mean=0.8404908, MSE=0.134066 
##   left son=194350 (140 obs) right son=194351 (23 obs)
##   Primary splits:
##       description_length < 3425     to the right, improve=0.03117831, (0 missing)
##       mo_launched        splits as  R-L-L---LRL-, improve=0.02370889, (0 missing)
##       reward_length      < 9838.5   to the left,  improve=0.02234224, (0 missing)
##       social_media_count splits as  LRRL,         improve=0.02213886, (0 missing)
##       campaign_duration  < 29.395   to the right, improve=0.01852133, (0 missing)
## 
## Node number 100758: 72 observations,    complexity param=0.0001156539
##   mean=0.3194444, MSE=0.2173997 
##   left son=201516 (41 obs) right son=201517 (31 obs)
##   Primary splits:
##       reward_length      < 2082     to the right, improve=0.06075396, (0 missing)
##       mo_launched        splits as  -LRL--LLLLLL, improve=0.05368234, (0 missing)
##       category           splits as  R---R-----L----, improve=0.04998521, (0 missing)
##       description_length < 949.5    to the left,  improve=0.04284447, (0 missing)
##       goal               < 3250     to the right, improve=0.02173913, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  -RRL--LLRLLL, agree=0.667, adj=0.226, (0 split)
##       description_length < 639.5    to the right, agree=0.611, adj=0.097, (0 split)
##       social_media_count splits as  LRL-,         agree=0.597, adj=0.065, (0 split)
##       campaign_duration  < 32.87    to the right, agree=0.583, adj=0.032, (0 split)
## 
## Node number 100759: 8 observations
##   mean=0.875, MSE=0.109375 
## 
## Node number 100760: 29 observations
##   mean=0.137931, MSE=0.1189061 
## 
## Node number 100761: 44 observations,    complexity param=0.0001090118
##   mean=0.4545455, MSE=0.2479339 
##   left son=201522 (8 obs) right son=201523 (36 obs)
##   Primary splits:
##       social_media_count splits as  RLR-,         improve=0.09733796, (0 missing)
##       reward_length      < 3534.5   to the right, improve=0.06844729, (0 missing)
##       campaign_duration  < 30.095   to the right, improve=0.04538853, (0 missing)
##       goal               < 2750     to the right, improve=0.03673611, (0 missing)
##       description_length < 893      to the left,  improve=0.02509804, (0 missing)
## 
## Node number 100762: 18 observations
##   mean=0.2777778, MSE=0.2006173 
## 
## Node number 100763: 19 observations
##   mean=0.6842105, MSE=0.2160665 
## 
## Node number 101212: 22 observations
##   mean=0.2727273, MSE=0.1983471 
## 
## Node number 101213: 43 observations,    complexity param=0.000129005
##   mean=0.6511628, MSE=0.2271498 
##   left son=202426 (21 obs) right son=202427 (22 obs)
##   Primary splits:
##       campaign_duration  < 30.19    to the left,  improve=0.12865390, (0 missing)
##       description_length < 928.5    to the right, improve=0.12865390, (0 missing)
##       reward_length      < 2951.5   to the left,  improve=0.04221456, (0 missing)
##       social_media_count splits as  RLRR,         improve=0.03894009, (0 missing)
##       goal               < 1025     to the left,  improve=0.02671614, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  -L-RL-R----R, agree=0.651, adj=0.286, (0 split)
##       description_length < 835.5    to the right, agree=0.628, adj=0.238, (0 split)
##       goal               < 1350     to the right, agree=0.605, adj=0.190, (0 split)
##       reward_length      < 2162.5   to the right, agree=0.605, adj=0.190, (0 split)
##       social_media_count splits as  RLRL,         agree=0.581, adj=0.143, (0 split)
## 
## Node number 101214: 7 observations
##   mean=0.4285714, MSE=0.244898 
## 
## Node number 101215: 15 observations
##   mean=0.9333333, MSE=0.06222222 
## 
## Node number 101576: 7 observations
##   mean=0, MSE=0 
## 
## Node number 101577: 30 observations,    complexity param=0.0001283621
##   mean=0.4333333, MSE=0.2455556 
##   left son=203154 (23 obs) right son=203155 (7 obs)
##   Primary splits:
##       reward_length      < 1435     to the right, improve=0.22261880, (0 missing)
##       goal               < 1450     to the left,  improve=0.06081535, (0 missing)
##       description_length < 2321.5   to the right, improve=0.04977376, (0 missing)
##       mo_launched        splits as  ---LLR------, improve=0.02607197, (0 missing)
##       video_status       < 0.5      to the right, improve=0.02068520, (0 missing)
## 
## Node number 102190: 8 observations
##   mean=0.375, MSE=0.234375 
## 
## Node number 102191: 30 observations
##   mean=0.8, MSE=0.16 
## 
## Node number 102312: 8 observations
##   mean=0, MSE=0 
## 
## Node number 102313: 16 observations
##   mean=0.5625, MSE=0.2460938 
## 
## Node number 102316: 39 observations,    complexity param=0.0001336597
##   mean=0.5128205, MSE=0.2498356 
##   left son=204632 (8 obs) right son=204633 (31 obs)
##   Primary splits:
##       goal               < 2875     to the right, improve=0.15535870, (0 missing)
##       category           splits as  L---R-----R----, improve=0.11560900, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.10140350, (0 missing)
##       mo_launched        splits as  R-LR--L-LL-R, improve=0.08496138, (0 missing)
##       description_length < 2637     to the right, improve=0.06251361, (0 missing)
## 
## Node number 102317: 35 observations
##   mean=0.7714286, MSE=0.1763265 
## 
## Node number 102318: 76 observations,    complexity param=0.0001023376
##   mean=0.7236842, MSE=0.1999654 
##   left son=204636 (39 obs) right son=204637 (37 obs)
##   Primary splits:
##       reward_length      < 3513.5   to the left,  improve=0.06182466, (0 missing)
##       campaign_duration  < 37.76    to the right, improve=0.04696502, (0 missing)
##       description_length < 2682.5   to the left,  improve=0.03331142, (0 missing)
##       social_media_count splits as  RRL-,         improve=0.02943723, (0 missing)
##       goal               < 3265     to the left,  improve=0.02909212, (0 missing)
##   Surrogate splits:
##       category           splits as  L---R-----R----, agree=0.632, adj=0.243, (0 split)
##       campaign_duration  < 38.14    to the left,  agree=0.592, adj=0.162, (0 split)
##       goal               < 1550     to the right, agree=0.592, adj=0.162, (0 split)
##       mo_launched        splits as  R-LL--L-RL-R, agree=0.579, adj=0.135, (0 split)
##       description_length < 2480     to the right, agree=0.579, adj=0.135, (0 split)
## 
## Node number 102319: 22 observations
##   mean=1, MSE=0 
## 
## Node number 103304: 14 observations
##   mean=0.07142857, MSE=0.06632653 
## 
## Node number 103305: 48 observations,    complexity param=0.0001369433
##   mean=0.4375, MSE=0.2460938 
##   left son=206610 (21 obs) right son=206611 (27 obs)
##   Primary splits:
##       description_length < 493      to the left,  improve=0.12566840, (0 missing)
##       goal               < 486      to the right, improve=0.04007104, (0 missing)
##       reward_length      < 3179.5   to the left,  improve=0.04007104, (0 missing)
##       mo_launched        splits as  RL--LRL-LLRR, improve=0.02354357, (0 missing)
##       campaign_duration  < 44.255   to the right, improve=0.01598363, (0 missing)
##   Surrogate splits:
##       campaign_duration < 43.29    to the right, agree=0.646, adj=0.190, (0 split)
##       goal              < 137.5    to the left,  agree=0.625, adj=0.143, (0 split)
##       mo_launched       splits as  RR--RRL-RRRL, agree=0.604, adj=0.095, (0 split)
##       category          splits as  R-------R-L-R--, agree=0.604, adj=0.095, (0 split)
##       reward_length     < 2561.5   to the left,  agree=0.583, adj=0.048, (0 split)
## 
## Node number 116326: 16 observations
##   mean=0.25, MSE=0.1875 
## 
## Node number 116327: 137 observations,    complexity param=0.0001170814
##   mean=0.4817518, MSE=0.249667 
##   left son=232654 (94 obs) right son=232655 (43 obs)
##   Primary splits:
##       reward_length      < 4851.5   to the right, improve=0.027674420, (0 missing)
##       description_length < 1838.5   to the left,  improve=0.024793830, (0 missing)
##       campaign_duration  < 23.71    to the right, improve=0.017873630, (0 missing)
##       goal               < 2550     to the right, improve=0.006307473, (0 missing)
##       mo_launched        splits as  --R-LRR-RR-R, improve=0.002376163, (0 missing)
##   Surrogate splits:
##       usa < 0.5      to the right, agree=0.701, adj=0.047, (0 split)
## 
## Node number 116340: 11 observations
##   mean=0.2727273, MSE=0.1983471 
## 
## Node number 116341: 24 observations,    complexity param=0.0001127251
##   mean=0.6666667, MSE=0.2222222 
##   left son=232682 (17 obs) right son=232683 (7 obs)
##   Primary splits:
##       description_length < 1628     to the left,  improve=0.20588240, (0 missing)
##       reward_length      < 5684.5   to the left,  improve=0.13333330, (0 missing)
##       campaign_duration  < 29.98    to the right, improve=0.06722689, (0 missing)
##       mo_launched        splits as  LR-L---L--L-, improve=0.06722689, (0 missing)
##       goal               < 3100     to the right, improve=0.03333333, (0 missing)
##   Surrogate splits:
##       mo_launched splits as  RL-L---L--L-, agree=0.75, adj=0.143, (0 split)
## 
## Node number 116642: 10 observations
##   mean=0.2, MSE=0.16 
## 
## Node number 116643: 28 observations,    complexity param=0.0001348783
##   mean=0.6428571, MSE=0.2295918 
##   left son=233286 (20 obs) right son=233287 (8 obs)
##   Primary splits:
##       goal               < 1800.5   to the right, improve=0.22222220, (0 missing)
##       social_media_count splits as  LR--,         improve=0.06666667, (0 missing)
##       description_length < 1414.5   to the left,  improve=0.06666667, (0 missing)
##       reward_length      < 4511     to the left,  improve=0.06666667, (0 missing)
##       mo_launched        splits as  ----RLR-LL--, improve=0.05975309, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 30.78    to the left,  agree=0.821, adj=0.375, (0 split)
##       social_media_count splits as  LR--,         agree=0.750, adj=0.125, (0 split)
##       mo_launched        splits as  ----LLR-LL--, agree=0.750, adj=0.125, (0 split)
##       reward_length      < 4119.5   to the right, agree=0.750, adj=0.125, (0 split)
## 
## Node number 120904: 96 observations,    complexity param=0.0001473601
##   mean=0.3854167, MSE=0.2368707 
##   left son=241808 (77 obs) right son=241809 (19 obs)
##   Primary splits:
##       description_length < 3498     to the left,  improve=0.06312402, (0 missing)
##       reward_length      < 6909     to the left,  improve=0.05503567, (0 missing)
##       campaign_duration  < 45.175   to the right, improve=0.04240720, (0 missing)
##       goal               < 2750     to the right, improve=0.02436734, (0 missing)
##       mo_launched        splits as  --R-R-L-L--R, improve=0.01744989, (0 missing)
## 
## Node number 120905: 64 observations,    complexity param=0.0001307569
##   mean=0.625, MSE=0.234375 
##   left son=241810 (45 obs) right son=241811 (19 obs)
##   Primary splits:
##       mo_launched        splits as  --L-L-R-R--L, improve=0.08491228, (0 missing)
##       description_length < 2197.5   to the left,  improve=0.06031746, (0 missing)
##       social_media_count splits as  LRR-,         improve=0.04000000, (0 missing)
##       reward_length      < 10552.5  to the right, improve=0.02572899, (0 missing)
##       goal               < 3894     to the left,  improve=0.02262443, (0 missing)
##   Surrogate splits:
##       reward_length      < 12236.5  to the left,  agree=0.766, adj=0.211, (0 split)
##       campaign_duration  < 57.765   to the left,  agree=0.719, adj=0.053, (0 split)
##       social_media_count splits as  LLR-,         agree=0.719, adj=0.053, (0 split)
##       goal               < 4100     to the left,  agree=0.719, adj=0.053, (0 split)
## 
## Node number 120906: 41 observations,    complexity param=0.0001737559
##   mean=0.4146341, MSE=0.2427127 
##   left son=241812 (19 obs) right son=241813 (22 obs)
##   Primary splits:
##       mo_launched        splits as  RL-L-L-R-RL-, improve=0.23454360, (0 missing)
##       description_length < 3051     to the right, improve=0.15098670, (0 missing)
##       campaign_duration  < 33.995   to the right, improve=0.08575189, (0 missing)
##       reward_length      < 10796.5  to the left,  improve=0.07616576, (0 missing)
##       goal               < 2925     to the right, improve=0.02585413, (0 missing)
##   Surrogate splits:
##       reward_length      < 8672     to the left,  agree=0.707, adj=0.368, (0 split)
##       campaign_duration  < 50.94    to the right, agree=0.634, adj=0.211, (0 split)
##       description_length < 3948     to the right, agree=0.634, adj=0.211, (0 split)
##       category           splits as  L-------R---R--, agree=0.610, adj=0.158, (0 split)
##       goal               < 3330     to the right, agree=0.610, adj=0.158, (0 split)
## 
## Node number 120907: 174 observations,    complexity param=0.000156301
##   mean=0.6494253, MSE=0.2276721 
##   left son=241814 (27 obs) right son=241815 (147 obs)
##   Primary splits:
##       video_status       < 0.5      to the left,  improve=0.03389715, (0 missing)
##       reward_length      < 6767.5   to the right, improve=0.03291604, (0 missing)
##       description_length < 2369.5   to the right, improve=0.02206748, (0 missing)
##       goal               < 2949.5   to the right, improve=0.01270202, (0 missing)
##       category           splits as  R-------R---L--, improve=0.01149613, (0 missing)
## 
## Node number 121538: 106 observations,    complexity param=0.0001427238
##   mean=0.5566038, MSE=0.246796 
##   left son=243076 (35 obs) right son=243077 (71 obs)
##   Primary splits:
##       mo_launched        splits as  -LRRRLLRRR--, improve=0.04898645, (0 missing)
##       reward_length      < 7884     to the left,  improve=0.04812132, (0 missing)
##       description_length < 3004.5   to the right, improve=0.03891123, (0 missing)
##       campaign_duration  < 14.5     to the right, improve=0.02500451, (0 missing)
##       goal               < 1155.5   to the right, improve=0.02310989, (0 missing)
##   Surrogate splits:
##       description_length < 3475.5   to the right, agree=0.698, adj=0.086, (0 split)
##       video_status       < 0.5      to the left,  agree=0.689, adj=0.057, (0 split)
##       campaign_duration  < 11.5     to the left,  agree=0.679, adj=0.029, (0 split)
## 
## Node number 121539: 33 observations,    complexity param=0.0001169519
##   mean=0.7878788, MSE=0.1671258 
##   left son=243078 (14 obs) right son=243079 (19 obs)
##   Primary splits:
##       mo_launched       splits as  -LRLRLRRRR--, improve=0.20656040, (0 missing)
##       reward_length     < 10195.5  to the left,  improve=0.13461540, (0 missing)
##       campaign_duration < 32.5     to the right, improve=0.12110810, (0 missing)
##       video_status      < 0.5      to the left,  improve=0.12110810, (0 missing)
##       goal              < 1089     to the right, improve=0.07547398, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 45.425   to the right, agree=0.667, adj=0.214, (0 split)
##       goal               < 1089     to the right, agree=0.667, adj=0.214, (0 split)
##       description_length < 4086.5   to the right, agree=0.667, adj=0.214, (0 split)
##       reward_length      < 8949.5   to the right, agree=0.636, adj=0.143, (0 split)
##       social_media_count splits as  RLR-,         agree=0.606, adj=0.071, (0 split)
## 
## Node number 123696: 26 observations
##   mean=0.2692308, MSE=0.1967456 
## 
## Node number 123697: 9 observations
##   mean=0.6666667, MSE=0.2222222 
## 
## Node number 128084: 48 observations,    complexity param=0.0001309726
##   mean=0.4791667, MSE=0.249566 
##   left son=256168 (37 obs) right son=256169 (11 obs)
##   Primary splits:
##       category           splits as  ------R---L----, improve=0.13691270, (0 missing)
##       reward_length      < 6500     to the left,  improve=0.07332977, (0 missing)
##       social_media_count splits as  RLL-, improve=0.07007338, (0 missing)
##       mo_launched        splits as  ------LR----, improve=0.03501031, (0 missing)
##       campaign_duration  < 30.805   to the left,  improve=0.03250836, (0 missing)
##   Surrogate splits:
##       reward_length < 7199.5   to the left,  agree=0.792, adj=0.091, (0 split)
## 
## Node number 128085: 13 observations
##   mean=0.9230769, MSE=0.07100592 
## 
## Node number 129106: 10 observations
##   mean=0.5, MSE=0.25 
## 
## Node number 129107: 19 observations
##   mean=0.8947368, MSE=0.09418283 
## 
## Node number 129108: 76 observations,    complexity param=0.0001199014
##   mean=0.5526316, MSE=0.2472299 
##   left son=258216 (16 obs) right son=258217 (60 obs)
##   Primary splits:
##       description_length < 1767     to the left,  improve=0.062196550, (0 missing)
##       campaign_duration  < 35.135   to the left,  improve=0.058861250, (0 missing)
##       reward_length      < 8107     to the left,  improve=0.049494490, (0 missing)
##       social_media_count splits as  RRLR,         improve=0.024450060, (0 missing)
##       goal               < 3600     to the right, improve=0.006359426, (0 missing)
##   Surrogate splits:
##       campaign_duration < 30.645   to the left,  agree=0.803, adj=0.063, (0 split)
## 
## Node number 129109: 80 observations,    complexity param=0.0001048262
##   mean=0.7375, MSE=0.1935937 
##   left son=258218 (11 obs) right son=258219 (69 obs)
##   Primary splits:
##       reward_length      < 7691     to the left,  improve=0.06593039, (0 missing)
##       mo_launched        splits as  ----RLRLL--R, improve=0.05750926, (0 missing)
##       goal               < 2725     to the right, improve=0.03709705, (0 missing)
##       description_length < 1489.5   to the right, improve=0.03413049, (0 missing)
##       social_media_count splits as  LRLR,         improve=0.01572976, (0 missing)
## 
## Node number 129110: 341 observations,    complexity param=0.0001081845
##   mean=0.7331378, MSE=0.1956468 
##   left son=258220 (332 obs) right son=258221 (9 obs)
##   Primary splits:
##       reward_length      < 7510.5   to the left,  improve=0.009867470, (0 missing)
##       campaign_duration  < 44.77    to the right, improve=0.008299050, (0 missing)
##       goal               < 2450     to the left,  improve=0.004457143, (0 missing)
##       description_length < 3412     to the right, improve=0.004144327, (0 missing)
##       category           splits as  ----------L--R-, improve=0.003581117, (0 missing)
## 
## Node number 129111: 11 observations
##   mean=1, MSE=0 
## 
## Node number 129122: 334 observations,    complexity param=0.00011046
##   mean=0.7065868, MSE=0.2073219 
##   left son=258244 (18 obs) right son=258245 (316 obs)
##   Primary splits:
##       category          splits as  ----------R--L-, improve=0.018880560, (0 missing)
##       reward_length     < 6335     to the left,  improve=0.011151270, (0 missing)
##       goal              < 3482.5   to the right, improve=0.007181111, (0 missing)
##       mo_launched       splits as  LRLL-----LL-, improve=0.006527329, (0 missing)
##       campaign_duration < 73.75    to the right, improve=0.004264913, (0 missing)
## 
## Node number 129123: 11 observations
##   mean=1, MSE=0 
## 
## Node number 129288: 17 observations
##   mean=0.2941176, MSE=0.2076125 
## 
## Node number 129289: 31 observations,    complexity param=0.0001197088
##   mean=0.5806452, MSE=0.2434964 
##   left son=258578 (18 obs) right son=258579 (13 obs)
##   Primary splits:
##       reward_length      < 7529     to the right, improve=0.20909120, (0 missing)
##       goal               < 2875     to the right, improve=0.06974434, (0 missing)
##       mo_launched        splits as  ----R-RRLR--, improve=0.06040970, (0 missing)
##       description_length < 1395.5   to the right, improve=0.04096990, (0 missing)
##       social_media_count splits as  RLL-,         improve=0.03116636, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  ----L-LRRL--, agree=0.677, adj=0.231, (0 split)
##       description_length < 1368     to the right, agree=0.645, adj=0.154, (0 split)
## 
## Node number 129338: 7 observations
##   mean=0.4285714, MSE=0.244898 
## 
## Node number 129339: 18 observations
##   mean=0.8888889, MSE=0.09876543 
## 
## Node number 129476: 9 observations
##   mean=0.3333333, MSE=0.2222222 
## 
## Node number 129477: 13 observations
##   mean=0.8461538, MSE=0.1301775 
## 
## Node number 129490: 12 observations
##   mean=0.4166667, MSE=0.2430556 
## 
## Node number 129491: 73 observations
##   mean=0.8356164, MSE=0.1373616 
## 
## Node number 129600: 10 observations
##   mean=0.1, MSE=0.09 
## 
## Node number 129601: 20 observations
##   mean=0.65, MSE=0.2275 
## 
## Node number 129602: 49 observations
##   mean=0.6326531, MSE=0.2324032 
## 
## Node number 129603: 9 observations
##   mean=1, MSE=0 
## 
## Node number 165624: 20 observations
##   mean=0.15, MSE=0.1275 
## 
## Node number 165625: 13 observations
##   mean=0.5384615, MSE=0.2485207 
## 
## Node number 165626: 22 observations
##   mean=0.4090909, MSE=0.2417355 
## 
## Node number 165627: 11 observations
##   mean=0.8181818, MSE=0.1487603 
## 
## Node number 165672: 35 observations
##   mean=0.05714286, MSE=0.05387755 
## 
## Node number 165673: 31 observations,    complexity param=0.0001009297
##   mean=0.3225806, MSE=0.2185224 
##   left son=331346 (19 obs) right son=331347 (12 obs)
##   Primary splits:
##       reward_length      < 7988     to the left,  improve=0.19651210, (0 missing)
##       goal               < 14900    to the right, improve=0.09409849, (0 missing)
##       description_length < 2555     to the left,  improve=0.08906746, (0 missing)
##       mo_launched        splits as  -R--L-L---R-, improve=0.04233693, (0 missing)
##       campaign_duration  < 29.215   to the right, improve=0.01499433, (0 missing)
##   Surrogate splits:
##       description_length < 3251.5   to the left,  agree=0.774, adj=0.417, (0 split)
##       mo_launched        splits as  -R--L-L---L-, agree=0.710, adj=0.250, (0 split)
## 
## Node number 167450: 44 observations,    complexity param=0.0001089864
##   mean=0.3863636, MSE=0.2370868 
##   left son=334900 (7 obs) right son=334901 (37 obs)
##   Primary splits:
##       reward_length      < 7967     to the left,  improve=0.11911910, (0 missing)
##       campaign_duration  < 31.04    to the left,  improve=0.05661925, (0 missing)
##       mo_launched        splits as  --LL-RR-L-L-, improve=0.03558460, (0 missing)
##       goal               < 52000    to the left,  improve=0.02042484, (0 missing)
##       description_length < 8106.5   to the right, improve=0.01883891, (0 missing)
## 
## Node number 167451: 7 observations
##   mean=0.8571429, MSE=0.122449 
## 
## Node number 170178: 33 observations
##   mean=0.2121212, MSE=0.1671258 
## 
## Node number 170179: 27 observations,    complexity param=0.0001049444
##   mean=0.4814815, MSE=0.2496571 
##   left son=340358 (7 obs) right son=340359 (20 obs)
##   Primary splits:
##       mo_launched        splits as  L-L--RR--R-R, improve=0.16075350, (0 missing)
##       reward_length      < 7733.5   to the right, improve=0.10989010, (0 missing)
##       campaign_duration  < 30.25    to the left,  improve=0.06668881, (0 missing)
##       description_length < 1882.5   to the right, improve=0.03489917, (0 missing)
##       goal               < 6115.57  to the right, improve=0.01564318, (0 missing)
##   Surrogate splits:
##       campaign_duration < 29.98    to the left,  agree=0.778, adj=0.143, (0 split)
## 
## Node number 170182: 73 observations,    complexity param=0.0001190715
##   mean=0.4109589, MSE=0.2420717 
##   left son=340364 (66 obs) right son=340365 (7 obs)
##   Primary splits:
##       reward_length      < 5455.5   to the right, improve=0.04031176, (0 missing)
##       campaign_duration  < 41.4     to the right, improve=0.03848235, (0 missing)
##       description_length < 6357     to the right, improve=0.02906082, (0 missing)
##       mo_launched        splits as  R-L--LR-----, improve=0.01620941, (0 missing)
##       goal               < 7250     to the right, improve=0.01219216, (0 missing)
## 
## Node number 170183: 8 observations
##   mean=0.75, MSE=0.1875 
## 
## Node number 170358: 137 observations,    complexity param=0.0001250543
##   mean=0.5036496, MSE=0.2499867 
##   left son=340716 (8 obs) right son=340717 (129 obs)
##   Primary splits:
##       description_length < 4688     to the right, improve=0.035567920, (0 missing)
##       mo_launched        splits as  -R-LR--RR-L-, improve=0.016922170, (0 missing)
##       goal               < 5550     to the right, improve=0.016159640, (0 missing)
##       reward_length      < 7395     to the right, improve=0.015645210, (0 missing)
##       campaign_duration  < 36.95    to the left,  improve=0.009556599, (0 missing)
## 
## Node number 170359: 12 observations
##   mean=0.9166667, MSE=0.07638889 
## 
## Node number 170728: 18 observations
##   mean=0.2777778, MSE=0.2006173 
## 
## Node number 170729: 10 observations
##   mean=0.7, MSE=0.21 
## 
## Node number 170882: 14 observations
##   mean=0.2857143, MSE=0.2040816 
## 
## Node number 170883: 19 observations
##   mean=0.6842105, MSE=0.2160665 
## 
## Node number 177330: 23 observations
##   mean=0.4347826, MSE=0.2457467 
## 
## Node number 177331: 11 observations
##   mean=0.9090909, MSE=0.08264463 
## 
## Node number 177332: 7 observations
##   mean=0.1428571, MSE=0.122449 
## 
## Node number 177333: 16 observations
##   mean=0.6875, MSE=0.2148438 
## 
## Node number 178186: 41 observations,    complexity param=0.0001208038
##   mean=0.2926829, MSE=0.2070196 
##   left son=356372 (31 obs) right son=356373 (10 obs)
##   Primary splits:
##       reward_length      < 12161    to the right, improve=0.14716350, (0 missing)
##       description_length < 8010.5   to the left,  improve=0.13667300, (0 missing)
##       mo_launched        splits as  R-LR--RL-RL-, improve=0.05298303, (0 missing)
##       goal               < 16500    to the right, improve=0.02094828, (0 missing)
##       campaign_duration  < 34.025   to the left,  improve=0.01794587, (0 missing)
##   Surrogate splits:
##       description_length < 13206.5  to the left,  agree=0.805, adj=0.2, (0 split)
## 
## Node number 178187: 8 observations
##   mean=0.75, MSE=0.1875 
## 
## Node number 191872: 8 observations
##   mean=0, MSE=0 
## 
## Node number 191873: 91 observations,    complexity param=0.0001247708
##   mean=0.3956044, MSE=0.2391016 
##   left son=383746 (42 obs) right son=383747 (49 obs)
##   Primary splits:
##       category           splits as  ------L---R----, improve=0.02656325, (0 missing)
##       reward_length      < 6484     to the left,  improve=0.02241679, (0 missing)
##       campaign_duration  < 23.5     to the right, improve=0.02238897, (0 missing)
##       mo_launched        splits as  -----LLRLR-L, improve=0.01823232, (0 missing)
##       social_media_count splits as  RLRR, improve=0.01422035, (0 missing)
##   Surrogate splits:
##       reward_length      < 6022.5   to the left,  agree=0.648, adj=0.238, (0 split)
##       campaign_duration  < 23.5     to the left,  agree=0.582, adj=0.095, (0 split)
##       description_length < 1699     to the right, agree=0.582, adj=0.095, (0 split)
##       social_media_count splits as  LRRR,         agree=0.571, adj=0.071, (0 split)
##       goal               < 5375     to the left,  agree=0.560, adj=0.048, (0 split)
## 
## Node number 191876: 24 observations
##   mean=0.3333333, MSE=0.2222222 
## 
## Node number 191877: 13 observations
##   mean=0.6923077, MSE=0.2130178 
## 
## Node number 191886: 27 observations,    complexity param=0.0001179638
##   mean=0.4814815, MSE=0.2496571 
##   left son=383772 (10 obs) right son=383773 (17 obs)
##   Primary splits:
##       mo_launched        splits as  -R---LRRRL-L, improve=0.18668390, (0 missing)
##       reward_length      < 5581     to the left,  improve=0.13461540, (0 missing)
##       campaign_duration  < 39.875   to the right, improve=0.07598116, (0 missing)
##       goal               < 5100     to the left,  improve=0.06605894, (0 missing)
##       social_media_count splits as  RLLR,         improve=0.05372841, (0 missing)
##   Surrogate splits:
##       reward_length      < 5085     to the left,  agree=0.741, adj=0.3, (0 split)
##       campaign_duration  < 33.555   to the left,  agree=0.704, adj=0.2, (0 split)
##       description_length < 1223     to the right, agree=0.704, adj=0.2, (0 split)
##       social_media_count splits as  RRLR,         agree=0.667, adj=0.1, (0 split)
## 
## Node number 191887: 44 observations,    complexity param=0.0001179638
##   mean=0.7954545, MSE=0.1627066 
##   left son=383774 (30 obs) right son=383775 (14 obs)
##   Primary splits:
##       campaign_duration  < 59.98    to the left,  improve=0.12000000, (0 missing)
##       reward_length      < 6095     to the left,  improve=0.10835980, (0 missing)
##       description_length < 1768.5   to the right, improve=0.03968254, (0 missing)
##       social_media_count splits as  LRR-, improve=0.03386243, (0 missing)
##       category           splits as  ------L---R----, improve=0.02135463, (0 missing)
##   Surrogate splits:
##       mo_launched splits as  -L---L-LLR-L, agree=0.727, adj=0.143, (0 split)
## 
## Node number 192402: 20 observations
##   mean=0.45, MSE=0.2475 
## 
## Node number 192403: 8 observations
##   mean=0.875, MSE=0.109375 
## 
## Node number 192658: 9 observations
##   mean=0, MSE=0 
## 
## Node number 192659: 19 observations
##   mean=0.4210526, MSE=0.2437673 
## 
## Node number 192712: 17 observations
##   mean=0.05882353, MSE=0.05536332 
## 
## Node number 192713: 44 observations,    complexity param=0.0001133832
##   mean=0.4318182, MSE=0.2453512 
##   left son=385426 (7 obs) right son=385427 (37 obs)
##   Primary splits:
##       reward_length      < 6191.5   to the left,  improve=0.06438529, (0 missing)
##       mo_launched        splits as  L--LLLR-----, improve=0.03390712, (0 missing)
##       description_length < 2851.5   to the left,  improve=0.02736842, (0 missing)
##       social_media_count splits as  RLL-,         improve=0.01060652, (0 missing)
##       campaign_duration  < 36.365   to the right, improve=0.01016541, (0 missing)
## 
## Node number 192714: 18 observations
##   mean=0.2777778, MSE=0.2006173 
## 
## Node number 192715: 65 observations
##   mean=0.6307692, MSE=0.2328994 
## 
## Node number 193414: 11 observations
##   mean=0.3636364, MSE=0.231405 
## 
## Node number 193415: 29 observations
##   mean=0.7241379, MSE=0.1997622 
## 
## Node number 193452: 28 observations
##   mean=0.5714286, MSE=0.244898 
## 
## Node number 193453: 20 observations
##   mean=0.9, MSE=0.09 
## 
## Node number 193474: 14 observations
##   mean=0.4285714, MSE=0.244898 
## 
## Node number 193475: 11 observations
##   mean=0.9090909, MSE=0.08264463 
## 
## Node number 193736: 15 observations
##   mean=0.1333333, MSE=0.1155556 
## 
## Node number 193737: 9 observations
##   mean=0.6666667, MSE=0.2222222 
## 
## Node number 193738: 164 observations,    complexity param=0.0001167596
##   mean=0.5670732, MSE=0.2455012 
##   left son=387476 (60 obs) right son=387477 (104 obs)
##   Primary splits:
##       description_length < 2643.5   to the right, improve=0.032209140, (0 missing)
##       campaign_duration  < 40.165   to the left,  improve=0.030095700, (0 missing)
##       goal               < 6350     to the right, improve=0.014637760, (0 missing)
##       reward_length      < 7798.5   to the right, improve=0.005843726, (0 missing)
##       social_media_count splits as  LRRL,         improve=0.003288641, (0 missing)
##   Surrogate splits:
##       reward_length      < 10987.5  to the right, agree=0.652, adj=0.050, (0 split)
##       campaign_duration  < 60.02    to the right, agree=0.646, adj=0.033, (0 split)
##       social_media_count splits as  RRRL,         agree=0.646, adj=0.033, (0 split)
##       goal               < 4472.22  to the left,  agree=0.646, adj=0.033, (0 split)
## 
## Node number 193739: 54 observations
##   mean=0.7222222, MSE=0.2006173 
## 
## Node number 193748: 10 observations
##   mean=0.2, MSE=0.16 
## 
## Node number 193749: 15 observations
##   mean=0.6666667, MSE=0.2222222 
## 
## Node number 194320: 46 observations,    complexity param=0.0001082271
##   mean=0.3043478, MSE=0.2117202 
##   left son=388640 (38 obs) right son=388641 (8 obs)
##   Primary splits:
##       description_length < 2101.5   to the right, improve=0.10223800, (0 missing)
##       mo_launched        splits as  LLRRLR-RRLL-, improve=0.05755740, (0 missing)
##       social_media_count splits as  RLRR, improve=0.02228664, (0 missing)
##       category           splits as  ------L---R----, improve=0.02170139, (0 missing)
##       reward_length      < 5353.5   to the right, improve=0.02103029, (0 missing)
## 
## Node number 194321: 13 observations
##   mean=0.7692308, MSE=0.1775148 
## 
## Node number 194322: 26 observations,    complexity param=0.0001254309
##   mean=0.5, MSE=0.25 
##   left son=388644 (7 obs) right son=388645 (19 obs)
##   Primary splits:
##       social_media_count splits as  RLLL,         improve=0.187969900, (0 missing)
##       description_length < 2477.5   to the right, improve=0.147929000, (0 missing)
##       reward_length      < 7085     to the right, improve=0.100000000, (0 missing)
##       mo_launched        splits as  -RLLRR-RRL--, improve=0.058823530, (0 missing)
##       campaign_duration  < 29.98    to the left,  improve=0.006535948, (0 missing)
##   Surrogate splits:
##       mo_launched   splits as  -RLRRR-RRR--, agree=0.769, adj=0.143, (0 split)
##       reward_length < 7068     to the right, agree=0.769, adj=0.143, (0 split)
## 
## Node number 194323: 10 observations
##   mean=1, MSE=0 
## 
## Node number 194326: 40 observations,    complexity param=0.000150575
##   mean=0.675, MSE=0.219375 
##   left son=388652 (19 obs) right son=388653 (21 obs)
##   Primary splits:
##       mo_launched        splits as  RRRLLL-RLRL-, improve=0.16714860, (0 missing)
##       social_media_count splits as  RLLL,         improve=0.07034688, (0 missing)
##       goal               < 8250     to the right, improve=0.06429331, (0 missing)
##       reward_length      < 6869.5   to the right, improve=0.05404537, (0 missing)
##       description_length < 3977.5   to the left,  improve=0.04091688, (0 missing)
##   Surrogate splits:
##       reward_length      < 7065     to the right, agree=0.625, adj=0.211, (0 split)
##       campaign_duration  < 29.98    to the right, agree=0.600, adj=0.158, (0 split)
##       social_media_count splits as  RRLL,         agree=0.600, adj=0.158, (0 split)
##       description_length < 4380     to the right, agree=0.600, adj=0.158, (0 split)
##       usa                < 0.5      to the left,  agree=0.575, adj=0.105, (0 split)
## 
## Node number 194327: 26 observations
##   mean=1, MSE=0 
## 
## Node number 194340: 21 observations
##   mean=0.3809524, MSE=0.2358277 
## 
## Node number 194341: 13 observations
##   mean=0.7692308, MSE=0.1775148 
## 
## Node number 194342: 86 observations,    complexity param=0.0001094835
##   mean=0.6046512, MSE=0.2390481 
##   left son=388684 (16 obs) right son=388685 (70 obs)
##   Primary splits:
##       description_length < 6594     to the right, improve=0.050428250, (0 missing)
##       mo_launched        splits as  L-L-R---LRL-, improve=0.049100820, (0 missing)
##       reward_length      < 26158    to the right, improve=0.023053110, (0 missing)
##       campaign_duration  < 29.975   to the left,  improve=0.013824220, (0 missing)
##       goal               < 9999.5   to the right, improve=0.005744405, (0 missing)
##   Surrogate splits:
##       goal < 11500    to the right, agree=0.826, adj=0.063, (0 split)
## 
## Node number 194343: 133 observations,    complexity param=0.00011519
##   mean=0.7218045, MSE=0.2008028 
##   left son=388686 (120 obs) right son=388687 (13 obs)
##   Primary splits:
##       campaign_duration  < 29.98    to the right, improve=0.04175347, (0 missing)
##       reward_length      < 22188.5  to the left,  improve=0.03808187, (0 missing)
##       usa                < 0.5      to the left,  improve=0.02780603, (0 missing)
##       description_length < 2718.5   to the left,  improve=0.01745965, (0 missing)
##       goal               < 9849.5   to the right, improve=0.01524031, (0 missing)
## 
## Node number 194348: 36 observations,    complexity param=0.0001364298
##   mean=0.5555556, MSE=0.2469136 
##   left son=388696 (16 obs) right son=388697 (20 obs)
##   Primary splits:
##       goal               < 6250     to the right, improve=0.19140630, (0 missing)
##       reward_length      < 8337.5   to the right, improve=0.16650250, (0 missing)
##       mo_launched        splits as  L-R-L---RRL-, improve=0.07492260, (0 missing)
##       category           splits as  ------R---L----, improve=0.07000000, (0 missing)
##       description_length < 2684.5   to the right, improve=0.06563636, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 28.95    to the left,  agree=0.694, adj=0.312, (0 split)
##       mo_launched        splits as  R-R-R---RLR-, agree=0.639, adj=0.187, (0 split)
##       category           splits as  ------R---L----, agree=0.639, adj=0.187, (0 split)
##       description_length < 2105     to the left,  agree=0.639, adj=0.187, (0 split)
##       reward_length      < 8394     to the right, agree=0.639, adj=0.187, (0 split)
## 
## Node number 194349: 74 observations,    complexity param=0.0001137753
##   mean=0.7972973, MSE=0.1616143 
##   left son=388698 (42 obs) right son=388699 (32 obs)
##   Primary splits:
##       mo_launched        splits as  R-L-L---RLR-, improve=0.09266882, (0 missing)
##       social_media_count splits as  RLRR, improve=0.02883042, (0 missing)
##       goal               < 5450     to the right, improve=0.02831356, (0 missing)
##       reward_length      < 10160.5  to the right, improve=0.02134251, (0 missing)
##       category           splits as  ------L---R----, improve=0.01645744, (0 missing)
##   Surrogate splits:
##       goal               < 5450     to the right, agree=0.635, adj=0.156, (0 split)
##       description_length < 2996.5   to the left,  agree=0.622, adj=0.125, (0 split)
##       reward_length      < 8549     to the right, agree=0.595, adj=0.063, (0 split)
##       social_media_count splits as  LRLL,         agree=0.581, adj=0.031, (0 split)
## 
## Node number 194350: 140 observations,    complexity param=0.0001190178
##   mean=0.8142857, MSE=0.1512245 
##   left son=388700 (8 obs) right son=388701 (132 obs)
##   Primary splits:
##       description_length < 3534.5   to the left,  improve=0.07733714, (0 missing)
##       reward_length      < 9838.5   to the left,  improve=0.03165431, (0 missing)
##       mo_launched        splits as  R-L-L---LRL-, improve=0.02629899, (0 missing)
##       campaign_duration  < 29.395   to the right, improve=0.02159244, (0 missing)
##       social_media_count splits as  LRRL,         improve=0.02103207, (0 missing)
## 
## Node number 194351: 23 observations
##   mean=1, MSE=0 
## 
## Node number 201516: 41 observations,    complexity param=0.0001156539
##   mean=0.2195122, MSE=0.1713266 
##   left son=403032 (32 obs) right son=403033 (9 obs)
##   Primary splits:
##       mo_launched        splits as  -LRL--LLLLRR, improve=0.18537810, (0 missing)
##       reward_length      < 2371     to the right, improve=0.06818182, (0 missing)
##       category           splits as  R---R-----L----, improve=0.06133513, (0 missing)
##       description_length < 954.5    to the left,  improve=0.04445497, (0 missing)
##       campaign_duration  < 44.015   to the right, improve=0.04290067, (0 missing)
## 
## Node number 201517: 31 observations
##   mean=0.4516129, MSE=0.2476587 
## 
## Node number 201522: 8 observations
##   mean=0.125, MSE=0.109375 
## 
## Node number 201523: 36 observations
##   mean=0.5277778, MSE=0.2492284 
## 
## Node number 202426: 21 observations
##   mean=0.4761905, MSE=0.2494331 
## 
## Node number 202427: 22 observations,    complexity param=0.0001078452
##   mean=0.8181818, MSE=0.1487603 
##   left son=404854 (9 obs) right son=404855 (13 obs)
##   Primary splits:
##       description_length < 962      to the right, improve=0.32098770, (0 missing)
##       reward_length      < 2892     to the right, improve=0.19100530, (0 missing)
##       mo_launched        splits as  -L-LR-R----L, improve=0.10370370, (0 missing)
##       goal               < 1025     to the left,  improve=0.05555556, (0 missing)
##       campaign_duration  < 50.295   to the right, improve=0.01785714, (0 missing)
##   Surrogate splits:
##       social_media_count splits as  RLR-,         agree=0.727, adj=0.333, (0 split)
##       mo_launched        splits as  -L-RR-R----R, agree=0.636, adj=0.111, (0 split)
##       goal               < 1025     to the left,  agree=0.636, adj=0.111, (0 split)
##       reward_length      < 2892     to the right, agree=0.636, adj=0.111, (0 split)
## 
## Node number 203154: 23 observations
##   mean=0.3043478, MSE=0.2117202 
## 
## Node number 203155: 7 observations
##   mean=0.8571429, MSE=0.122449 
## 
## Node number 204632: 8 observations
##   mean=0.125, MSE=0.109375 
## 
## Node number 204633: 31 observations,    complexity param=0.0001336597
##   mean=0.6129032, MSE=0.2372529 
##   left son=409266 (14 obs) right son=409267 (17 obs)
##   Primary splits:
##       category           splits as  L---L-----R----, improve=0.22705660, (0 missing)
##       mo_launched        splits as  R-RR--L-RR-R, improve=0.13160510, (0 missing)
##       description_length < 2493     to the right, improve=0.09097744, (0 missing)
##       reward_length      < 3097     to the right, improve=0.07025898, (0 missing)
##       goal               < 1800     to the left,  improve=0.01142178, (0 missing)
##   Surrogate splits:
##       description_length < 2493     to the right, agree=0.742, adj=0.429, (0 split)
##       video_status       < 0.5      to the left,  agree=0.677, adj=0.286, (0 split)
##       reward_length      < 3519.5   to the right, agree=0.645, adj=0.214, (0 split)
##       social_media_count splits as  LRRR,         agree=0.581, adj=0.071, (0 split)
##       mo_launched        splits as  R-RR--L-RR-R, agree=0.581, adj=0.071, (0 split)
## 
## Node number 204636: 39 observations,    complexity param=0.0001023376
##   mean=0.6153846, MSE=0.2366864 
##   left son=409272 (23 obs) right son=409273 (16 obs)
##   Primary splits:
##       description_length < 2682.5   to the left,  improve=0.11419840, (0 missing)
##       campaign_duration  < 37.76    to the right, improve=0.04821429, (0 missing)
##       mo_launched        splits as  L-RR--R-LR-L, improve=0.04293831, (0 missing)
##       goal               < 1675     to the left,  improve=0.03703704, (0 missing)
##       reward_length      < 3263.5   to the left,  improve=0.03150000, (0 missing)
##   Surrogate splits:
##       mo_launched       splits as  R-RR--L-LL-L, agree=0.795, adj=0.500, (0 split)
##       reward_length     < 3437     to the left,  agree=0.667, adj=0.187, (0 split)
##       campaign_duration < 42.895   to the left,  agree=0.615, adj=0.063, (0 split)
## 
## Node number 204637: 37 observations,    complexity param=0.0001018155
##   mean=0.8378378, MSE=0.1358656 
##   left son=409274 (13 obs) right son=409275 (24 obs)
##   Primary splits:
##       mo_launched        splits as  R-RL--L-RR-R, improve=0.19728770, (0 missing)
##       campaign_duration  < 37.14    to the right, improve=0.11781210, (0 missing)
##       category           splits as  R---L-----L----, improve=0.07168459, (0 missing)
##       reward_length      < 3859     to the right, improve=0.05480613, (0 missing)
##       description_length < 3409     to the right, improve=0.02621608, (0 missing)
##   Surrogate splits:
##       reward_length      < 4034     to the right, agree=0.703, adj=0.154, (0 split)
##       campaign_duration  < 45.76    to the right, agree=0.676, adj=0.077, (0 split)
##       social_media_count splits as  RRL-,         agree=0.676, adj=0.077, (0 split)
## 
## Node number 206610: 21 observations,    complexity param=0.0001369433
##   mean=0.2380952, MSE=0.1814059 
##   left son=413220 (12 obs) right son=413221 (9 obs)
##   Primary splits:
##       goal               < 486      to the right, improve=0.41666670, (0 missing)
##       mo_launched        splits as  ----LRL-LRRR, improve=0.23437500, (0 missing)
##       reward_length      < 3151     to the left,  improve=0.13136360, (0 missing)
##       description_length < 326      to the right, improve=0.06358173, (0 missing)
##       campaign_duration  < 32.52    to the left,  improve=0.00625000, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  ----LRL-LRRR, agree=0.857, adj=0.667, (0 split)
##       reward_length      < 3053.5   to the left,  agree=0.810, adj=0.556, (0 split)
##       social_media_count splits as  LR--,         agree=0.714, adj=0.333, (0 split)
##       description_length < 215      to the right, agree=0.714, adj=0.333, (0 split)
## 
## Node number 206611: 27 observations
##   mean=0.5925926, MSE=0.2414266 
## 
## Node number 232654: 94 observations,    complexity param=0.0001170814
##   mean=0.4255319, MSE=0.2444545 
##   left son=465308 (29 obs) right son=465309 (65 obs)
##   Primary splits:
##       reward_length      < 5459.5   to the left,  improve=0.061893110, (0 missing)
##       campaign_duration  < 27.725   to the right, improve=0.014907030, (0 missing)
##       description_length < 1918     to the left,  improve=0.014907030, (0 missing)
##       mo_launched        splits as  --L-LRR-LL-L, improve=0.011708480, (0 missing)
##       goal               < 2150     to the right, improve=0.006356765, (0 missing)
##   Surrogate splits:
##       description_length < 1974     to the right, agree=0.713, adj=0.069, (0 split)
##       campaign_duration  < 35.045   to the right, agree=0.702, adj=0.034, (0 split)
## 
## Node number 232655: 43 observations
##   mean=0.6046512, MSE=0.2390481 
## 
## Node number 232682: 17 observations
##   mean=0.5294118, MSE=0.2491349 
## 
## Node number 232683: 7 observations
##   mean=1, MSE=0 
## 
## Node number 233286: 20 observations
##   mean=0.5, MSE=0.25 
## 
## Node number 233287: 8 observations
##   mean=1, MSE=0 
## 
## Node number 241808: 77 observations,    complexity param=0.0001356484
##   mean=0.3246753, MSE=0.2192613 
##   left son=483616 (19 obs) right son=483617 (58 obs)
##   Primary splits:
##       description_length < 3244.5   to the right, improve=0.07192587, (0 missing)
##       reward_length      < 7055     to the left,  improve=0.06346226, (0 missing)
##       goal               < 2750     to the right, improve=0.05869285, (0 missing)
##       campaign_duration  < 45.175   to the right, improve=0.04904241, (0 missing)
##       mo_launched        splits as  --R-R-L-L--R, improve=0.04525041, (0 missing)
##   Surrogate splits:
##       reward_length < 12709    to the right, agree=0.766, adj=0.053, (0 split)
## 
## Node number 241809: 19 observations
##   mean=0.6315789, MSE=0.232687 
## 
## Node number 241810: 45 observations
##   mean=0.5333333, MSE=0.2488889 
## 
## Node number 241811: 19 observations
##   mean=0.8421053, MSE=0.132964 
## 
## Node number 241812: 19 observations
##   mean=0.1578947, MSE=0.132964 
## 
## Node number 241813: 22 observations,    complexity param=0.0001308142
##   mean=0.6363636, MSE=0.231405 
##   left son=483626 (12 obs) right son=483627 (10 obs)
##   Primary splits:
##       description_length < 3074     to the right, improve=0.25029760, (0 missing)
##       campaign_duration  < 33.995   to the right, improve=0.16868620, (0 missing)
##       goal               < 2925     to the right, improve=0.09829932, (0 missing)
##       mo_launched        splits as  L------R-L--, improve=0.09829932, (0 missing)
##       reward_length      < 9582.5   to the right, improve=0.06696429, (0 missing)
##   Surrogate splits:
##       campaign_duration < 32.26    to the right, agree=0.682, adj=0.3, (0 split)
##       category          splits as  R-------R---L--, agree=0.682, adj=0.3, (0 split)
##       usa               < 0.5      to the right, agree=0.636, adj=0.2, (0 split)
##       video_status      < 0.5      to the right, agree=0.636, adj=0.2, (0 split)
##       reward_length     < 6832.5   to the right, agree=0.636, adj=0.2, (0 split)
## 
## Node number 241814: 27 observations,    complexity param=0.000156301
##   mean=0.4444444, MSE=0.2469136 
##   left son=483628 (14 obs) right son=483629 (13 obs)
##   Primary splits:
##       description_length < 2958.5   to the left,  improve=0.23104400, (0 missing)
##       mo_launched        splits as  RR-R-L-L-RL-, improve=0.19204550, (0 missing)
##       campaign_duration  < 30.54    to the right, improve=0.08210227, (0 missing)
##       reward_length      < 9814.5   to the left,  improve=0.05559211, (0 missing)
##       category           splits as  L-------R---R--, improve=0.04970588, (0 missing)
##   Surrogate splits:
##       mo_launched       splits as  LL-L-R-L-RL-, agree=0.630, adj=0.231, (0 split)
##       category          splits as  L-------L---R--, agree=0.593, adj=0.154, (0 split)
##       goal              < 2750     to the left,  agree=0.593, adj=0.154, (0 split)
##       reward_length     < 6823     to the right, agree=0.593, adj=0.154, (0 split)
##       campaign_duration < 31.485   to the right, agree=0.556, adj=0.077, (0 split)
## 
## Node number 241815: 147 observations,    complexity param=0.000156301
##   mean=0.6870748, MSE=0.215003 
##   left son=483630 (14 obs) right son=483631 (133 obs)
##   Primary splits:
##       reward_length      < 11125.5  to the right, improve=0.05329429, (0 missing)
##       description_length < 2802     to the right, improve=0.04237752, (0 missing)
##       goal               < 2949.5   to the right, improve=0.01951683, (0 missing)
##       category           splits as  R-------L---L--, improve=0.01933333, (0 missing)
##       mo_launched        splits as  LL-L-R-L-LL-, improve=0.01667120, (0 missing)
## 
## Node number 243076: 35 observations
##   mean=0.4, MSE=0.24 
## 
## Node number 243077: 71 observations,    complexity param=0.0001427238
##   mean=0.6338028, MSE=0.2320968 
##   left son=486154 (29 obs) right son=486155 (42 obs)
##   Primary splits:
##       description_length < 2981.5   to the right, improve=0.06787153, (0 missing)
##       reward_length      < 7883     to the left,  improve=0.06216006, (0 missing)
##       campaign_duration  < 14.5     to the right, improve=0.02350618, (0 missing)
##       goal               < 725      to the left,  improve=0.02242594, (0 missing)
##       video_status       < 0.5      to the left,  improve=0.01264537, (0 missing)
##   Surrogate splits:
##       reward_length     < 7057     to the left,  agree=0.648, adj=0.138, (0 split)
##       campaign_duration < 19.425   to the left,  agree=0.634, adj=0.103, (0 split)
##       mo_launched       splits as  --LRR--RRR--, agree=0.606, adj=0.034, (0 split)
##       goal              < 1150     to the right, agree=0.606, adj=0.034, (0 split)
## 
## Node number 243078: 14 observations
##   mean=0.5714286, MSE=0.244898 
## 
## Node number 243079: 19 observations
##   mean=0.9473684, MSE=0.0498615 
## 
## Node number 256168: 37 observations,    complexity param=0.0001037148
##   mean=0.3783784, MSE=0.2352082 
##   left son=512336 (30 obs) right son=512337 (7 obs)
##   Primary splits:
##       reward_length      < 6547.5   to the left,  improve=0.111934300, (0 missing)
##       description_length < 1042.5   to the left,  improve=0.059016160, (0 missing)
##       social_media_count splits as  RLR-,         improve=0.050177180, (0 missing)
##       mo_launched        splits as  ------LR----, improve=0.033633540, (0 missing)
##       goal               < 1762     to the right, improve=0.008172605, (0 missing)
##   Surrogate splits:
##       campaign_duration < 34.185   to the left,  agree=0.865, adj=0.286, (0 split)
## 
## Node number 256169: 11 observations
##   mean=0.8181818, MSE=0.1487603 
## 
## Node number 258216: 16 observations
##   mean=0.3125, MSE=0.2148438 
## 
## Node number 258217: 60 observations,    complexity param=0.0001199014
##   mean=0.6166667, MSE=0.2363889 
##   left son=516434 (17 obs) right son=516435 (43 obs)
##   Primary splits:
##       campaign_duration  < 35.135   to the left,  improve=0.11632090, (0 missing)
##       description_length < 3094.5   to the right, improve=0.07070114, (0 missing)
##       reward_length      < 8095.5   to the left,  improve=0.05643780, (0 missing)
##       goal               < 3331.665 to the right, improve=0.03568828, (0 missing)
##       social_media_count splits as  RRLR,         improve=0.02214235, (0 missing)
##   Surrogate splits:
##       description_length < 5435.5   to the right, agree=0.75, adj=0.118, (0 split)
## 
## Node number 258218: 11 observations
##   mean=0.4545455, MSE=0.2479339 
## 
## Node number 258219: 69 observations
##   mean=0.7826087, MSE=0.1701323 
## 
## Node number 258220: 332 observations,    complexity param=0.0001081845
##   mean=0.7259036, MSE=0.1989676 
##   left son=516440 (74 obs) right son=516441 (258 obs)
##   Primary splits:
##       campaign_duration  < 44.77    to the right, improve=0.008603646, (0 missing)
##       reward_length      < 5584     to the left,  improve=0.007274346, (0 missing)
##       goal               < 2450     to the left,  improve=0.004803401, (0 missing)
##       description_length < 3412     to the right, improve=0.004573177, (0 missing)
##       category           splits as  ----------L--R-, improve=0.004119567, (0 missing)
## 
## Node number 258221: 9 observations
##   mean=1, MSE=0 
## 
## Node number 258244: 18 observations
##   mean=0.4444444, MSE=0.2469136 
## 
## Node number 258245: 316 observations,    complexity param=0.00011046
##   mean=0.721519, MSE=0.2009293 
##   left son=516490 (268 obs) right son=516491 (48 obs)
##   Primary splits:
##       description_length < 3010     to the left,  improve=0.011144440, (0 missing)
##       reward_length      < 6327.5   to the left,  improve=0.006940853, (0 missing)
##       mo_launched        splits as  LRRL-----LL-, improve=0.006730250, (0 missing)
##       goal               < 3482.5   to the right, improve=0.006700096, (0 missing)
##       usa                < 0.5      to the left,  improve=0.005564073, (0 missing)
## 
## Node number 258578: 18 observations
##   mean=0.3888889, MSE=0.2376543 
## 
## Node number 258579: 13 observations
##   mean=0.8461538, MSE=0.1301775 
## 
## Node number 331346: 19 observations
##   mean=0.1578947, MSE=0.132964 
## 
## Node number 331347: 12 observations
##   mean=0.5833333, MSE=0.2430556 
## 
## Node number 334900: 7 observations
##   mean=0, MSE=0 
## 
## Node number 334901: 37 observations
##   mean=0.4594595, MSE=0.2483565 
## 
## Node number 340358: 7 observations
##   mean=0.1428571, MSE=0.122449 
## 
## Node number 340359: 20 observations
##   mean=0.6, MSE=0.24 
## 
## Node number 340364: 66 observations,    complexity param=0.0001190715
##   mean=0.3787879, MSE=0.2353076 
##   left son=680728 (44 obs) right son=680729 (22 obs)
##   Primary splits:
##       reward_length      < 7468     to the left,  improve=0.059024390, (0 missing)
##       description_length < 3806.5   to the right, improve=0.042460470, (0 missing)
##       campaign_duration  < 41.4     to the right, improve=0.032975610, (0 missing)
##       goal               < 7650     to the left,  improve=0.012425260, (0 missing)
##       category           splits as  --------R---L--, improve=0.004915215, (0 missing)
##   Surrogate splits:
##       goal < 7900     to the left,  agree=0.697, adj=0.091, (0 split)
## 
## Node number 340365: 7 observations
##   mean=0.7142857, MSE=0.2040816 
## 
## Node number 340716: 8 observations
##   mean=0.125, MSE=0.109375 
## 
## Node number 340717: 129 observations,    complexity param=0.0001181282
##   mean=0.5271318, MSE=0.2492639 
##   left son=681434 (118 obs) right son=681435 (11 obs)
##   Primary splits:
##       reward_length      < 6211.5   to the right, improve=0.031680110, (0 missing)
##       mo_launched        splits as  -R-LR--RR-L-, improve=0.023625840, (0 missing)
##       description_length < 1675     to the left,  improve=0.021222790, (0 missing)
##       goal               < 5550     to the right, improve=0.015832440, (0 missing)
##       campaign_duration  < 36.95    to the left,  improve=0.008062631, (0 missing)
## 
## Node number 356372: 31 observations
##   mean=0.1935484, MSE=0.1560874 
## 
## Node number 356373: 10 observations
##   mean=0.6, MSE=0.24 
## 
## Node number 383746: 42 observations,    complexity param=0.0001136903
##   mean=0.3095238, MSE=0.2137188 
##   left son=767492 (32 obs) right son=767493 (10 obs)
##   Primary splits:
##       campaign_duration  < 29.5     to the right, improve=0.12337530, (0 missing)
##       mo_launched        splits as  -----RRLLR-R, improve=0.05083410, (0 missing)
##       reward_length      < 5531.5   to the right, improve=0.04715874, (0 missing)
##       description_length < 1332.5   to the left,  improve=0.03819629, (0 missing)
##       goal               < 5525     to the left,  improve=0.02127910, (0 missing)
##   Surrogate splits:
##       reward_length < 6702.5   to the left,  agree=0.786, adj=0.1, (0 split)
## 
## Node number 383747: 49 observations,    complexity param=0.0001247708
##   mean=0.4693878, MSE=0.2490629 
##   left son=767494 (42 obs) right son=767495 (7 obs)
##   Primary splits:
##       mo_launched        splits as  -----LLRLL-L, improve=0.18840580, (0 missing)
##       description_length < 1657.5   to the left,  improve=0.07204928, (0 missing)
##       social_media_count splits as  RLRR,         improve=0.04315460, (0 missing)
##       reward_length      < 6318.5   to the left,  improve=0.03261708, (0 missing)
##       campaign_duration  < 30.02    to the right, improve=0.01672241, (0 missing)
##   Surrogate splits:
##       goal < 7250     to the left,  agree=0.878, adj=0.143, (0 split)
## 
## Node number 383772: 10 observations
##   mean=0.2, MSE=0.16 
## 
## Node number 383773: 17 observations
##   mean=0.6470588, MSE=0.2283737 
## 
## Node number 383774: 30 observations,    complexity param=0.0001179638
##   mean=0.7, MSE=0.21 
##   left son=767548 (9 obs) right son=767549 (21 obs)
##   Primary splits:
##       campaign_duration  < 46.24    to the right, improve=0.27437640, (0 missing)
##       reward_length      < 6150.5   to the left,  improve=0.10289120, (0 missing)
##       mo_launched        splits as  -L---R-LRL-R, improve=0.04320988, (0 missing)
##       description_length < 1550.5   to the left,  improve=0.04320988, (0 missing)
##       social_media_count splits as  LRR-,         improve=0.03578823, (0 missing)
##   Surrogate splits:
##       description_length < 1407     to the left,  agree=0.733, adj=0.111, (0 split)
## 
## Node number 383775: 14 observations
##   mean=1, MSE=0 
## 
## Node number 385426: 7 observations
##   mean=0.1428571, MSE=0.122449 
## 
## Node number 385427: 37 observations,    complexity param=0.0001133832
##   mean=0.4864865, MSE=0.2498174 
##   left son=770854 (20 obs) right son=770855 (17 obs)
##   Primary splits:
##       reward_length      < 9114     to the right, improve=0.16377710, (0 missing)
##       mo_launched        splits as  L--LLLR-----, improve=0.07667877, (0 missing)
##       social_media_count splits as  RLL-,         improve=0.06931324, (0 missing)
##       campaign_duration  < 36.365   to the right, improve=0.03017962, (0 missing)
##       description_length < 2851.5   to the left,  improve=0.02041467, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 30.225   to the right, agree=0.703, adj=0.353, (0 split)
##       mo_launched        splits as  L--RLLR-----, agree=0.622, adj=0.176, (0 split)
##       goal               < 20060    to the right, agree=0.595, adj=0.118, (0 split)
##       description_length < 2374.5   to the right, agree=0.595, adj=0.118, (0 split)
## 
## Node number 387476: 60 observations
##   mean=0.45, MSE=0.2475 
## 
## Node number 387477: 104 observations,    complexity param=0.0001167596
##   mean=0.6346154, MSE=0.2318787 
##   left son=774954 (91 obs) right son=774955 (13 obs)
##   Primary splits:
##       description_length < 2499     to the left,  improve=0.05126452, (0 missing)
##       campaign_duration  < 43.86    to the left,  improve=0.04396680, (0 missing)
##       reward_length      < 10773.5  to the right, improve=0.02422249, (0 missing)
##       goal               < 6525     to the right, improve=0.01435407, (0 missing)
##       mo_launched        splits as  ----L-L-RRR-, improve=0.01062603, (0 missing)
##   Surrogate splits:
##       goal < 10708.5  to the left,  agree=0.885, adj=0.077, (0 split)
## 
## Node number 388640: 38 observations,    complexity param=0.0001082271
##   mean=0.2368421, MSE=0.1807479 
##   left son=777280 (22 obs) right son=777281 (16 obs)
##   Primary splits:
##       description_length < 2542     to the left,  improve=0.16200800, (0 missing)
##       mo_launched        splits as  LLRLRR-RRRL-, improve=0.07007786, (0 missing)
##       category           splits as  ------L---R----, improve=0.03359431, (0 missing)
##       reward_length      < 5231.5   to the left,  improve=0.01845466, (0 missing)
##       social_media_count splits as  RLRR, improve=0.01845466, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  LLLLLL-LRRL-, agree=0.711, adj=0.312, (0 split)
##       category           splits as  ------L---R----, agree=0.658, adj=0.188, (0 split)
##       reward_length      < 5571.5   to the left,  agree=0.632, adj=0.125, (0 split)
##       social_media_count splits as  LLRL, agree=0.605, adj=0.062, (0 split)
## 
## Node number 388641: 8 observations
##   mean=0.625, MSE=0.234375 
## 
## Node number 388644: 7 observations
##   mean=0.1428571, MSE=0.122449 
## 
## Node number 388645: 19 observations
##   mean=0.6315789, MSE=0.232687 
## 
## Node number 388652: 19 observations
##   mean=0.4736842, MSE=0.2493075 
## 
## Node number 388653: 21 observations
##   mean=0.8571429, MSE=0.122449 
## 
## Node number 388684: 16 observations
##   mean=0.375, MSE=0.234375 
## 
## Node number 388685: 70 observations,    complexity param=0.0001094835
##   mean=0.6571429, MSE=0.2253061 
##   left son=777370 (18 obs) right son=777371 (52 obs)
##   Primary splits:
##       mo_launched        splits as  L-L-R---RRR-, improve=0.06950638, (0 missing)
##       description_length < 2085.5   to the left,  improve=0.04558935, (0 missing)
##       reward_length      < 12495.5  to the right, improve=0.01509662, (0 missing)
##       campaign_duration  < 30.02    to the left,  improve=0.01271783, (0 missing)
##       goal               < 7250     to the left,  improve=0.01032950, (0 missing)
## 
## Node number 388686: 120 observations,    complexity param=0.00011519
##   mean=0.6916667, MSE=0.2132639 
##   left son=777372 (7 obs) right son=777373 (113 obs)
##   Primary splits:
##       usa                < 0.5      to the left,  improve=0.047868790, (0 missing)
##       reward_length      < 22211    to the left,  improve=0.045166270, (0 missing)
##       goal               < 9849.5   to the right, improve=0.027608890, (0 missing)
##       description_length < 2718.5   to the left,  improve=0.021391970, (0 missing)
##       mo_launched        splits as  R-R-L---RLR-, improve=0.007265754, (0 missing)
## 
## Node number 388687: 13 observations
##   mean=1, MSE=0 
## 
## Node number 388696: 16 observations
##   mean=0.3125, MSE=0.2148438 
## 
## Node number 388697: 20 observations,    complexity param=0.0001142238
##   mean=0.75, MSE=0.1875 
##   left son=777394 (7 obs) right son=777395 (13 obs)
##   Primary splits:
##       description_length < 2724     to the right, improve=0.29670330, (0 missing)
##       reward_length      < 8113     to the right, improve=0.29670330, (0 missing)
##       mo_launched        splits as  L-R-L---RRL-, improve=0.12000000, (0 missing)
##       social_media_count splits as  LR--,         improve=0.05555556, (0 missing)
##   Surrogate splits:
##       reward_length < 8177     to the right, agree=0.85, adj=0.571, (0 split)
##       mo_launched   splits as  R-R-L---RRR-, agree=0.70, adj=0.143, (0 split)
##       goal          < 5750     to the right, agree=0.70, adj=0.143, (0 split)
## 
## Node number 388698: 42 observations
##   mean=0.6904762, MSE=0.2137188 
## 
## Node number 388699: 32 observations
##   mean=0.9375, MSE=0.05859375 
## 
## Node number 388700: 8 observations
##   mean=0.375, MSE=0.234375 
## 
## Node number 388701: 132 observations
##   mean=0.8409091, MSE=0.133781 
## 
## Node number 403032: 32 observations
##   mean=0.125, MSE=0.109375 
## 
## Node number 403033: 9 observations
##   mean=0.5555556, MSE=0.2469136 
## 
## Node number 404854: 9 observations
##   mean=0.5555556, MSE=0.2469136 
## 
## Node number 404855: 13 observations
##   mean=1, MSE=0 
## 
## Node number 409266: 14 observations
##   mean=0.3571429, MSE=0.2295918 
## 
## Node number 409267: 17 observations
##   mean=0.8235294, MSE=0.1453287 
## 
## Node number 409272: 23 observations
##   mean=0.4782609, MSE=0.2495274 
## 
## Node number 409273: 16 observations
##   mean=0.8125, MSE=0.1523438 
## 
## Node number 409274: 13 observations
##   mean=0.6153846, MSE=0.2366864 
## 
## Node number 409275: 24 observations
##   mean=0.9583333, MSE=0.03993056 
## 
## Node number 413220: 12 observations
##   mean=0, MSE=0 
## 
## Node number 413221: 9 observations
##   mean=0.5555556, MSE=0.2469136 
## 
## Node number 465308: 29 observations
##   mean=0.2413793, MSE=0.1831153 
## 
## Node number 465309: 65 observations,    complexity param=0.0001170814
##   mean=0.5076923, MSE=0.2499408 
##   left son=930618 (58 obs) right son=930619 (7 obs)
##   Primary splits:
##       description_length < 1918     to the left,  improve=0.117032400, (0 missing)
##       reward_length      < 7621     to the right, improve=0.037289010, (0 missing)
##       campaign_duration  < 27.725   to the right, improve=0.013493520, (0 missing)
##       social_media_count splits as  RLR-,         improve=0.008436639, (0 missing)
##       mo_launched        splits as  --L-LRR-LL-L, improve=0.006841856, (0 missing)
## 
## Node number 483616: 19 observations
##   mean=0.1052632, MSE=0.09418283 
## 
## Node number 483617: 58 observations,    complexity param=0.0001356484
##   mean=0.3965517, MSE=0.2392985 
##   left son=967234 (34 obs) right son=967235 (24 obs)
##   Primary splits:
##       goal               < 2988     to the right, improve=0.10291070, (0 missing)
##       campaign_duration  < 45.35    to the right, improve=0.06253715, (0 missing)
##       reward_length      < 7055     to the left,  improve=0.05761095, (0 missing)
##       description_length < 2789     to the left,  improve=0.04754313, (0 missing)
##       mo_launched        splits as  --R-R-L-L--R, improve=0.03915553, (0 missing)
##   Surrogate splits:
##       description_length < 3075.5   to the left,  agree=0.655, adj=0.167, (0 split)
##       reward_length      < 10589    to the left,  agree=0.638, adj=0.125, (0 split)
## 
## Node number 483626: 12 observations
##   mean=0.4166667, MSE=0.2430556 
## 
## Node number 483627: 10 observations
##   mean=0.9, MSE=0.09 
## 
## Node number 483628: 14 observations
##   mean=0.2142857, MSE=0.1683673 
## 
## Node number 483629: 13 observations
##   mean=0.6923077, MSE=0.2130178 
## 
## Node number 483630: 14 observations
##   mean=0.3571429, MSE=0.2295918 
## 
## Node number 483631: 133 observations
##   mean=0.7218045, MSE=0.2008028 
## 
## Node number 486154: 29 observations,    complexity param=0.0001427238
##   mean=0.4827586, MSE=0.2497027 
##   left son=972308 (15 obs) right son=972309 (14 obs)
##   Primary splits:
##       mo_launched        splits as  --LLL--RRR--, improve=0.20036280, (0 missing)
##       description_length < 3429.5   to the left,  improve=0.06095238, (0 missing)
##       reward_length      < 8679     to the left,  improve=0.05897959, (0 missing)
##       campaign_duration  < 30.02    to the right, improve=0.01771542, (0 missing)
##       category           splits as  R-------L---L--, improve=0.00962001, (0 missing)
##   Surrogate splits:
##       video_status       < 0.5      to the left,  agree=0.655, adj=0.286, (0 split)
##       category           splits as  L-------L---R--, agree=0.655, adj=0.286, (0 split)
##       goal               < 1100     to the right, agree=0.655, adj=0.286, (0 split)
##       campaign_duration  < 28.185   to the right, agree=0.621, adj=0.214, (0 split)
##       description_length < 3289.5   to the left,  agree=0.621, adj=0.214, (0 split)
## 
## Node number 486155: 42 observations,    complexity param=0.0001427238
##   mean=0.7380952, MSE=0.1933107 
##   left son=972310 (23 obs) right son=972311 (19 obs)
##   Primary splits:
##       mo_launched        splits as  --RRR--LLL--, improve=0.18715310, (0 missing)
##       reward_length      < 7883     to the left,  improve=0.11730210, (0 missing)
##       description_length < 2892.5   to the left,  improve=0.11088710, (0 missing)
##       goal               < 725      to the left,  improve=0.09912023, (0 missing)
##       campaign_duration  < 27.875   to the left,  improve=0.03082845, (0 missing)
##   Surrogate splits:
##       description_length < 2747     to the left,  agree=0.786, adj=0.526, (0 split)
##       category           splits as  R-------L---L--, agree=0.643, adj=0.211, (0 split)
##       campaign_duration  < 17.5     to the right, agree=0.619, adj=0.158, (0 split)
##       reward_length      < 8370     to the left,  agree=0.619, adj=0.158, (0 split)
##       social_media_count splits as  LRL-, agree=0.595, adj=0.105, (0 split)
## 
## Node number 512336: 30 observations,    complexity param=0.0001037148
##   mean=0.3, MSE=0.21 
##   left son=1024672 (19 obs) right son=1024673 (11 obs)
##   Primary splits:
##       description_length < 1045.5   to the left,  improve=0.16609710, (0 missing)
##       reward_length      < 5467.5   to the right, improve=0.07778496, (0 missing)
##       social_media_count splits as  RLR-,         improve=0.05643739, (0 missing)
##       goal               < 1512     to the left,  improve=0.05643739, (0 missing)
##       mo_launched        splits as  ------LR----, improve=0.03850535, (0 missing)
##   Surrogate splits:
##       campaign_duration < 29.975   to the right, agree=0.733, adj=0.273, (0 split)
##       mo_launched       splits as  ------RL----, agree=0.667, adj=0.091, (0 split)
##       goal              < 3100     to the left,  agree=0.667, adj=0.091, (0 split)
## 
## Node number 512337: 7 observations
##   mean=0.7142857, MSE=0.2040816 
## 
## Node number 516434: 17 observations
##   mean=0.3529412, MSE=0.2283737 
## 
## Node number 516435: 43 observations,    complexity param=0.0001199014
##   mean=0.7209302, MSE=0.2011898 
##   left son=1032870 (36 obs) right son=1032871 (7 obs)
##   Primary splits:
##       reward_length      < 7756.5   to the right, improve=0.07526882, (0 missing)
##       description_length < 3094.5   to the right, improve=0.07393095, (0 missing)
##       goal               < 3331.665 to the right, improve=0.05363102, (0 missing)
##       mo_launched        splits as  ----LLLRR--L, improve=0.04521505, (0 missing)
##       campaign_duration  < 47.315   to the right, improve=0.02710573, (0 missing)
## 
## Node number 516440: 74 observations,    complexity param=0.0001081845
##   mean=0.6486486, MSE=0.2279036 
##   left son=1032880 (36 obs) right son=1032881 (38 obs)
##   Primary splits:
##       campaign_duration  < 56.415   to the left,  improve=0.06073109, (0 missing)
##       goal               < 1600     to the left,  improve=0.05396566, (0 missing)
##       social_media_count splits as  RLRL,         improve=0.03116415, (0 missing)
##       description_length < 2032.5   to the right, improve=0.02800009, (0 missing)
##       reward_length      < 6876     to the right, improve=0.02268433, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  ----LLRLR--L, agree=0.635, adj=0.250, (0 split)
##       description_length < 1882     to the right, agree=0.622, adj=0.222, (0 split)
##       reward_length      < 5223.5   to the left,  agree=0.554, adj=0.083, (0 split)
##       social_media_count splits as  RLRL, agree=0.541, adj=0.056, (0 split)
##       category           splits as  ----------R--L-, agree=0.541, adj=0.056, (0 split)
## 
## Node number 516441: 258 observations,    complexity param=0.0001081845
##   mean=0.748062, MSE=0.1884652 
##   left son=1032882 (44 obs) right son=1032883 (214 obs)
##   Primary splits:
##       reward_length      < 5584     to the left,  improve=0.01361136, (0 missing)
##       campaign_duration  < 40.925   to the left,  improve=0.01358014, (0 missing)
##       social_media_count splits as  LRLL,         improve=0.01280567, (0 missing)
##       description_length < 3412     to the right, improve=0.01188921, (0 missing)
##       mo_launched        splits as  ----RLLLL--L, improve=0.01041352, (0 missing)
## 
## Node number 516490: 268 observations,    complexity param=0.00011046
##   mean=0.7014925, MSE=0.2094008 
##   left son=1032980 (198 obs) right son=1032981 (70 obs)
##   Primary splits:
##       mo_launched        splits as  LRRL-----LL-, improve=0.016382980, (0 missing)
##       usa                < 0.5      to the left,  improve=0.015663360, (0 missing)
##       reward_length      < 6327.5   to the left,  improve=0.013858600, (0 missing)
##       description_length < 2901.5   to the right, improve=0.009540113, (0 missing)
##       campaign_duration  < 30.02    to the right, improve=0.008801036, (0 missing)
##   Surrogate splits:
##       campaign_duration < 29.975   to the right, agree=0.799, adj=0.229, (0 split)
## 
## Node number 516491: 48 observations
##   mean=0.8333333, MSE=0.1388889 
## 
## Node number 680728: 44 observations,    complexity param=0.0001190715
##   mean=0.2954545, MSE=0.2081612 
##   left son=1361456 (22 obs) right son=1361457 (22 obs)
##   Primary splits:
##       reward_length      < 6551.5   to the right, improve=0.121588100, (0 missing)
##       description_length < 4413.5   to the left,  improve=0.095628110, (0 missing)
##       campaign_duration  < 40.625   to the right, improve=0.041978810, (0 missing)
##       goal               < 5125     to the right, improve=0.040918600, (0 missing)
##       category           splits as  --------R---L--, improve=0.002584781, (0 missing)
##   Surrogate splits:
##       campaign_duration  < 31.015   to the right, agree=0.614, adj=0.227, (0 split)
##       mo_launched        splits as  L-L--RL-----, agree=0.591, adj=0.182, (0 split)
##       description_length < 3621     to the left,  agree=0.591, adj=0.182, (0 split)
##       goal               < 5750     to the left,  agree=0.568, adj=0.136, (0 split)
##       category           splits as  --------L---R--, agree=0.545, adj=0.091, (0 split)
## 
## Node number 680729: 22 observations,    complexity param=0.0001190715
##   mean=0.5454545, MSE=0.2479339 
##   left son=1361458 (9 obs) right son=1361459 (13 obs)
##   Primary splits:
##       description_length < 4838.5   to the right, improve=0.29173790, (0 missing)
##       goal               < 5250     to the left,  improve=0.12698410, (0 missing)
##       mo_launched        splits as  L-L--RR-----, improve=0.03333333, (0 missing)
##       reward_length      < 8219.5   to the left,  improve=0.02849003, (0 missing)
##       campaign_duration  < 34.205   to the right, improve=0.02571429, (0 missing)
##   Surrogate splits:
##       campaign_duration < 29.98    to the left,  agree=0.682, adj=0.222, (0 split)
##       reward_length     < 7976     to the left,  agree=0.682, adj=0.222, (0 split)
##       mo_launched       splits as  L-R--RR-----, agree=0.636, adj=0.111, (0 split)
## 
## Node number 681434: 118 observations,    complexity param=0.0001181282
##   mean=0.5, MSE=0.25 
##   left son=1362868 (53 obs) right son=1362869 (65 obs)
##   Primary splits:
##       description_length < 2571.5   to the left,  improve=0.03512337, (0 missing)
##       mo_launched        splits as  -R-RR--RR-L-, improve=0.02242563, (0 missing)
##       campaign_duration  < 33.5     to the right, improve=0.01618123, (0 missing)
##       reward_length      < 8795     to the right, improve=0.01618123, (0 missing)
##       category           splits as  --------R---L--, improve=0.01329080, (0 missing)
##   Surrogate splits:
##       reward_length      < 6401     to the left,  agree=0.619, adj=0.151, (0 split)
##       mo_launched        splits as  -R-RR--RR-L-, agree=0.610, adj=0.132, (0 split)
##       campaign_duration  < 30.02    to the right, agree=0.602, adj=0.113, (0 split)
##       social_media_count splits as  RRL-,         agree=0.585, adj=0.075, (0 split)
##       goal               < 4550     to the left,  agree=0.559, adj=0.019, (0 split)
## 
## Node number 681435: 11 observations
##   mean=0.8181818, MSE=0.1487603 
## 
## Node number 767492: 32 observations
##   mean=0.21875, MSE=0.1708984 
## 
## Node number 767493: 10 observations
##   mean=0.6, MSE=0.24 
## 
## Node number 767494: 42 observations,    complexity param=0.0001247708
##   mean=0.3809524, MSE=0.2358277 
##   left son=1534988 (30 obs) right son=1534989 (12 obs)
##   Primary splits:
##       description_length < 1657.5   to the left,  improve=0.13846150, (0 missing)
##       goal               < 6125     to the right, improve=0.10459740, (0 missing)
##       social_media_count splits as  RLRR,         improve=0.04474852, (0 missing)
##       reward_length      < 5393.5   to the right, improve=0.03076923, (0 missing)
##       campaign_duration  < 29.3     to the left,  improve=0.01710973, (0 missing)
##   Surrogate splits:
##       social_media_count splits as  LLLR, agree=0.738, adj=0.083, (0 split)
## 
## Node number 767495: 7 observations
##   mean=1, MSE=0 
## 
## Node number 767548: 9 observations
##   mean=0.3333333, MSE=0.2222222 
## 
## Node number 767549: 21 observations
##   mean=0.8571429, MSE=0.122449 
## 
## Node number 770854: 20 observations
##   mean=0.3, MSE=0.21 
## 
## Node number 770855: 17 observations
##   mean=0.7058824, MSE=0.2076125 
## 
## Node number 774954: 91 observations,    complexity param=0.0001167596
##   mean=0.5934066, MSE=0.2412752 
##   left son=1549908 (81 obs) right son=1549909 (10 obs)
##   Primary splits:
##       description_length < 1939.5   to the right, improve=0.048098100, (0 missing)
##       campaign_duration  < 43.86    to the left,  improve=0.032490090, (0 missing)
##       goal               < 6275     to the right, improve=0.019383260, (0 missing)
##       reward_length      < 10773.5  to the right, improve=0.019055950, (0 missing)
##       mo_launched        splits as  ----L-L-RRR-, improve=0.007447924, (0 missing)
## 
## Node number 774955: 13 observations
##   mean=0.9230769, MSE=0.07100592 
## 
## Node number 777280: 22 observations
##   mean=0.09090909, MSE=0.08264463 
## 
## Node number 777281: 16 observations
##   mean=0.4375, MSE=0.2460938 
## 
## Node number 777370: 18 observations
##   mean=0.4444444, MSE=0.2469136 
## 
## Node number 777371: 52 observations
##   mean=0.7307692, MSE=0.1967456 
## 
## Node number 777372: 7 observations
##   mean=0.2857143, MSE=0.2040816 
## 
## Node number 777373: 113 observations,    complexity param=0.00011519
##   mean=0.7168142, MSE=0.2029916 
##   left son=1554746 (38 obs) right son=1554747 (75 obs)
##   Primary splits:
##       goal               < 9849.5   to the right, improve=0.047442060, (0 missing)
##       reward_length      < 22211    to the left,  improve=0.035551080, (0 missing)
##       mo_launched        splits as  R-R-L---RLR-, improve=0.024676920, (0 missing)
##       description_length < 5886.5   to the right, improve=0.015146240, (0 missing)
##       category           splits as  ------R---L----, improve=0.003459642, (0 missing)
## 
## Node number 777394: 7 observations
##   mean=0.4285714, MSE=0.244898 
## 
## Node number 777395: 13 observations
##   mean=0.9230769, MSE=0.07100592 
## 
## Node number 930618: 58 observations
##   mean=0.4482759, MSE=0.2473246 
## 
## Node number 930619: 7 observations
##   mean=1, MSE=0 
## 
## Node number 967234: 34 observations,    complexity param=0.0001138322
##   mean=0.2647059, MSE=0.1946367 
##   left son=1934468 (10 obs) right son=1934469 (24 obs)
##   Primary splits:
##       reward_length      < 7055     to the left,  improve=0.15000000, (0 missing)
##       mo_launched        splits as  --R-R-L-L--L, improve=0.11215300, (0 missing)
##       description_length < 2377     to the right, improve=0.08855512, (0 missing)
##       goal               < 3825     to the right, improve=0.01698246, (0 missing)
##       category           splits as  --------L---R--, improve=0.01688186, (0 missing)
##   Surrogate splits:
##       description_length < 2134.5   to the left,  agree=0.765, adj=0.2, (0 split)
##       mo_launched        splits as  --R-R-L-R--R, agree=0.735, adj=0.1, (0 split)
## 
## Node number 967235: 24 observations
##   mean=0.5833333, MSE=0.2430556 
## 
## Node number 972308: 15 observations
##   mean=0.2666667, MSE=0.1955556 
## 
## Node number 972309: 14 observations
##   mean=0.7142857, MSE=0.2040816 
## 
## Node number 972310: 23 observations,    complexity param=0.0001427238
##   mean=0.5652174, MSE=0.2457467 
##   left son=1944620 (7 obs) right son=1944621 (16 obs)
##   Primary splits:
##       reward_length      < 7883     to the left,  improve=0.31758240, (0 missing)
##       description_length < 2391.5   to the right, improve=0.15171700, (0 missing)
##       campaign_duration  < 30.695   to the left,  improve=0.11819290, (0 missing)
##       category           splits as  L-------L---R--, improve=0.07852564, (0 missing)
##       mo_launched        splits as  -------LLR--, improve=0.03956044, (0 missing)
##   Surrogate splits:
##       social_media_count splits as  RLL-, agree=0.783, adj=0.286, (0 split)
## 
## Node number 972311: 19 observations
##   mean=0.9473684, MSE=0.0498615 
## 
## Node number 1024672: 19 observations
##   mean=0.1578947, MSE=0.132964 
## 
## Node number 1024673: 11 observations
##   mean=0.5454545, MSE=0.2479339 
## 
## Node number 1032870: 36 observations,    complexity param=0.0001199014
##   mean=0.6666667, MSE=0.2222222 
##   left son=2065740 (10 obs) right son=2065741 (26 obs)
##   Primary splits:
##       reward_length      < 8044     to the left,  improve=0.23269230, (0 missing)
##       mo_launched        splits as  ----RRLRR--L, improve=0.06250000, (0 missing)
##       goal               < 3331.665 to the right, improve=0.04180602, (0 missing)
##       description_length < 3094.5   to the right, improve=0.03906250, (0 missing)
##       campaign_duration  < 41.5     to the right, improve=0.03076923, (0 missing)
## 
## Node number 1032871: 7 observations
##   mean=1, MSE=0 
## 
## Node number 1032880: 36 observations,    complexity param=0.0001081845
##   mean=0.5277778, MSE=0.2492284 
##   left son=2065760 (21 obs) right son=2065761 (15 obs)
##   Primary splits:
##       mo_launched        splits as  ----LRRLL--R, improve=0.12109690, (0 missing)
##       reward_length      < 6629.5   to the right, improve=0.10985020, (0 missing)
##       description_length < 2031     to the right, improve=0.03869969, (0 missing)
##       social_media_count splits as  LRRL,         improve=0.03381448, (0 missing)
##       campaign_duration  < 45.02    to the right, improve=0.03034056, (0 missing)
##   Surrogate splits:
##       description_length < 2063     to the right, agree=0.722, adj=0.333, (0 split)
##       campaign_duration  < 47.32    to the left,  agree=0.639, adj=0.133, (0 split)
##       category           splits as  ----------L--R-, agree=0.639, adj=0.133, (0 split)
##       social_media_count splits as  LLRL, agree=0.611, adj=0.067, (0 split)
##       reward_length      < 6048.5   to the right, agree=0.611, adj=0.067, (0 split)
## 
## Node number 1032881: 38 observations
##   mean=0.7631579, MSE=0.1807479 
## 
## Node number 1032882: 44 observations,    complexity param=0.0001081845
##   mean=0.6363636, MSE=0.231405 
##   left son=2065764 (27 obs) right son=2065765 (17 obs)
##   Primary splits:
##       social_media_count splits as  LRRL,         improve=0.16464360, (0 missing)
##       goal               < 3400     to the right, improve=0.14335320, (0 missing)
##       description_length < 2698     to the left,  improve=0.09829932, (0 missing)
##       mo_launched        splits as  ----RLLRR--L, improve=0.06218574, (0 missing)
##       reward_length      < 5169.5   to the right, improve=0.05468750, (0 missing)
##   Surrogate splits:
##       description_length < 1489     to the right, agree=0.727, adj=0.294, (0 split)
##       goal               < 1125     to the right, agree=0.659, adj=0.118, (0 split)
##       reward_length      < 5134.5   to the right, agree=0.659, adj=0.118, (0 split)
##       mo_launched        splits as  ----LLLRL--L, agree=0.636, adj=0.059, (0 split)
## 
## Node number 1032883: 214 observations,    complexity param=0.0001081845
##   mean=0.771028, MSE=0.1765438 
##   left son=2065766 (44 obs) right son=2065767 (170 obs)
##   Primary splits:
##       description_length < 3412     to the right, improve=0.02658624, (0 missing)
##       reward_length      < 5948.5   to the right, improve=0.01407637, (0 missing)
##       mo_launched        splits as  ----RLLLL--L, improve=0.01281768, (0 missing)
##       social_media_count splits as  RRLL,         improve=0.01247698, (0 missing)
##       campaign_duration  < 40.925   to the left,  improve=0.01004245, (0 missing)
##   Surrogate splits:
##       reward_length < 7405.5   to the right, agree=0.799, adj=0.023, (0 split)
## 
## Node number 1032980: 198 observations
##   mean=0.6666667, MSE=0.2222222 
## 
## Node number 1032981: 70 observations,    complexity param=0.00011046
##   mean=0.8, MSE=0.16 
##   left son=2065962 (8 obs) right son=2065963 (62 obs)
##   Primary splits:
##       goal               < 3750     to the right, improve=0.243951600, (0 missing)
##       description_length < 2244.5   to the left,  improve=0.044384060, (0 missing)
##       campaign_duration  < 56.43    to the right, improve=0.016531710, (0 missing)
##       reward_length      < 6360     to the left,  improve=0.013781220, (0 missing)
##       social_media_count splits as  R-L-,         improve=0.002016129, (0 missing)
## 
## Node number 1361456: 22 observations
##   mean=0.1363636, MSE=0.1177686 
## 
## Node number 1361457: 22 observations,    complexity param=0.0001190715
##   mean=0.4545455, MSE=0.2479339 
##   left son=2722914 (9 obs) right son=2722915 (13 obs)
##   Primary splits:
##       description_length < 4413.5   to the left,  improve=0.329344700, (0 missing)
##       goal               < 5125     to the right, improve=0.066964290, (0 missing)
##       reward_length      < 5791.5   to the left,  improve=0.053650790, (0 missing)
##       mo_launched        splits as  R-L--RL-----, improve=0.041025640, (0 missing)
##       campaign_duration  < 30.13    to the left,  improve=0.004761905, (0 missing)
##   Surrogate splits:
##       mo_launched   splits as  R-L--RR-----, agree=0.636, adj=0.111, (0 split)
##       category      splits as  --------L---R--, agree=0.636, adj=0.111, (0 split)
##       reward_length < 6032     to the right, agree=0.636, adj=0.111, (0 split)
## 
## Node number 1361458: 9 observations
##   mean=0.2222222, MSE=0.1728395 
## 
## Node number 1361459: 13 observations
##   mean=0.7692308, MSE=0.1775148 
## 
## Node number 1362868: 53 observations,    complexity param=0.0001181282
##   mean=0.3962264, MSE=0.239231 
##   left son=2725736 (26 obs) right son=2725737 (27 obs)
##   Primary splits:
##       reward_length      < 7558     to the right, improve=0.11019540, (0 missing)
##       mo_launched        splits as  -R-RR--RR-L-, improve=0.06353383, (0 missing)
##       description_length < 2169.5   to the right, improve=0.06353383, (0 missing)
##       goal               < 5750     to the right, improve=0.04465171, (0 missing)
##       social_media_count splits as  LRL-,         improve=0.01952547, (0 missing)
##   Surrogate splits:
##       mo_launched        splits as  -R-RL--RL-L-, agree=0.679, adj=0.346, (0 split)
##       description_length < 1951.5   to the right, agree=0.604, adj=0.192, (0 split)
##       campaign_duration  < 30.02    to the right, agree=0.585, adj=0.154, (0 split)
##       goal               < 5750     to the right, agree=0.585, adj=0.154, (0 split)
## 
## Node number 1362869: 65 observations
##   mean=0.5846154, MSE=0.2428402 
## 
## Node number 1534988: 30 observations
##   mean=0.2666667, MSE=0.1955556 
## 
## Node number 1534989: 12 observations
##   mean=0.6666667, MSE=0.2222222 
## 
## Node number 1549908: 81 observations,    complexity param=0.0001167596
##   mean=0.5555556, MSE=0.2469136 
##   left son=3099816 (7 obs) right son=3099817 (74 obs)
##   Primary splits:
##       description_length < 1982     to the left,  improve=0.065250970, (0 missing)
##       campaign_duration  < 43.86    to the left,  improve=0.045454550, (0 missing)
##       goal               < 6275     to the right, improve=0.033241760, (0 missing)
##       reward_length      < 10773.5  to the right, improve=0.027895750, (0 missing)
##       mo_launched        splits as  ----L-L-RRR-, improve=0.006868132, (0 missing)
## 
## Node number 1549909: 10 observations
##   mean=0.9, MSE=0.09 
## 
## Node number 1554746: 38 observations,    complexity param=0.00011519
##   mean=0.5789474, MSE=0.2437673 
##   left son=3109492 (8 obs) right son=3109493 (30 obs)
##   Primary splits:
##       description_length < 5904.5   to the right, improve=0.225426100, (0 missing)
##       mo_launched        splits as  R-R-L---RLR-, improve=0.169626900, (0 missing)
##       reward_length      < 20807    to the left,  improve=0.016966900, (0 missing)
##       category           splits as  ------R---L----, improve=0.014568760, (0 missing)
##       campaign_duration  < 30.02    to the right, improve=0.006818182, (0 missing)
## 
## Node number 1554747: 75 observations
##   mean=0.7866667, MSE=0.1678222 
## 
## Node number 1934468: 10 observations
##   mean=0, MSE=0 
## 
## Node number 1934469: 24 observations,    complexity param=0.0001138322
##   mean=0.375, MSE=0.234375 
##   left son=3868938 (15 obs) right son=3868939 (9 obs)
##   Primary splits:
##       reward_length      < 8284     to the right, improve=0.21777780, (0 missing)
##       mo_launched        splits as  --R-R-L-L--L, improve=0.13333330, (0 missing)
##       description_length < 2377     to the right, improve=0.08345679, (0 missing)
##       goal               < 3825     to the right, improve=0.03776224, (0 missing)
##       category           splits as  --------L---R--, improve=0.03333333, (0 missing)
##   Surrogate splits:
##       description_length < 2824.5   to the left,  agree=0.833, adj=0.556, (0 split)
##       mo_launched        splits as  --R-L-L-L--L, agree=0.750, adj=0.333, (0 split)
##       goal               < 3537.5   to the left,  agree=0.750, adj=0.333, (0 split)
##       campaign_duration  < 30.305   to the left,  agree=0.667, adj=0.111, (0 split)
##       social_media_count splits as  LLLR,         agree=0.667, adj=0.111, (0 split)
## 
## Node number 1944620: 7 observations
##   mean=0.1428571, MSE=0.122449 
## 
## Node number 1944621: 16 observations
##   mean=0.75, MSE=0.1875 
## 
## Node number 2065740: 10 observations
##   mean=0.3, MSE=0.21 
## 
## Node number 2065741: 26 observations
##   mean=0.8076923, MSE=0.1553254 
## 
## Node number 2065760: 21 observations,    complexity param=0.0001081845
##   mean=0.3809524, MSE=0.2358277 
##   left son=4131520 (14 obs) right son=4131521 (7 obs)
##   Primary splits:
##       reward_length      < 5910.5   to the right, improve=0.23557690, (0 missing)
##       goal               < 2945     to the left,  improve=0.07692308, (0 missing)
##       social_media_count splits as  LRRL,         improve=0.03698225, (0 missing)
##       mo_launched        splits as  ----L--RL---, improve=0.03698225, (0 missing)
##       description_length < 2448.5   to the left,  improve=0.02526224, (0 missing)
##   Surrogate splits:
##       description_length < 1480     to the right, agree=0.762, adj=0.286, (0 split)
## 
## Node number 2065761: 15 observations
##   mean=0.7333333, MSE=0.1955556 
## 
## Node number 2065764: 27 observations
##   mean=0.4814815, MSE=0.2496571 
## 
## Node number 2065765: 17 observations
##   mean=0.8823529, MSE=0.1038062 
## 
## Node number 2065766: 44 observations,    complexity param=0.0001081845
##   mean=0.6363636, MSE=0.231405 
##   left son=4131532 (20 obs) right son=4131533 (24 obs)
##   Primary splits:
##       mo_launched        splits as  ----RLLRL--R, improve=0.20119050, (0 missing)
##       category           splits as  ----------L--R-, improve=0.10810810, (0 missing)
##       reward_length      < 6241     to the left,  improve=0.06436782, (0 missing)
##       description_length < 4549.5   to the left,  improve=0.04650298, (0 missing)
##       goal               < 1450     to the left,  improve=0.02363445, (0 missing)
##   Surrogate splits:
##       description_length < 6039.5   to the right, agree=0.705, adj=0.35, (0 split)
##       goal               < 1979     to the right, agree=0.636, adj=0.20, (0 split)
##       reward_length      < 6238.5   to the left,  agree=0.636, adj=0.20, (0 split)
##       campaign_duration  < 35.12    to the right, agree=0.568, adj=0.05, (0 split)
## 
## Node number 2065767: 170 observations
##   mean=0.8058824, MSE=0.156436 
## 
## Node number 2065962: 8 observations
##   mean=0.25, MSE=0.1875 
## 
## Node number 2065963: 62 observations
##   mean=0.8709677, MSE=0.1123829 
## 
## Node number 2722914: 9 observations
##   mean=0.1111111, MSE=0.09876543 
## 
## Node number 2722915: 13 observations
##   mean=0.6923077, MSE=0.2130178 
## 
## Node number 2725736: 26 observations,    complexity param=0.0001181282
##   mean=0.2307692, MSE=0.1775148 
##   left son=5451472 (16 obs) right son=5451473 (10 obs)
##   Primary splits:
##       mo_launched        splits as  -R--L--RR-L-, improve=0.255208300, (0 missing)
##       reward_length      < 8027     to the left,  improve=0.060208330, (0 missing)
##       description_length < 2083.5   to the right, improve=0.060208330, (0 missing)
##       campaign_duration  < 30.02    to the right, improve=0.033333330, (0 missing)
##       goal               < 7250     to the left,  improve=0.006265664, (0 missing)
##   Surrogate splits:
##       campaign_duration < 37.1     to the left,  agree=0.692, adj=0.2, (0 split)
##       reward_length     < 8913.5   to the left,  agree=0.692, adj=0.2, (0 split)
##       goal              < 8279.5   to the left,  agree=0.654, adj=0.1, (0 split)
## 
## Node number 2725737: 27 observations
##   mean=0.5555556, MSE=0.2469136 
## 
## Node number 3099816: 7 observations
##   mean=0.1428571, MSE=0.122449 
## 
## Node number 3099817: 74 observations
##   mean=0.5945946, MSE=0.2410519 
## 
## Node number 3109492: 8 observations
##   mean=0.125, MSE=0.109375 
## 
## Node number 3109493: 30 observations
##   mean=0.7, MSE=0.21 
## 
## Node number 3868938: 15 observations
##   mean=0.2, MSE=0.16 
## 
## Node number 3868939: 9 observations
##   mean=0.6666667, MSE=0.2222222 
## 
## Node number 4131520: 14 observations
##   mean=0.2142857, MSE=0.1683673 
## 
## Node number 4131521: 7 observations
##   mean=0.7142857, MSE=0.2040816 
## 
## Node number 4131532: 20 observations,    complexity param=0.0001081845
##   mean=0.4, MSE=0.24 
##   left son=8263064 (9 obs) right son=8263065 (11 obs)
##   Primary splits:
##       description_length < 4576     to the left,  improve=0.284511800, (0 missing)
##       goal               < 2750     to the left,  improve=0.082491580, (0 missing)
##       reward_length      < 6235.5   to the left,  improve=0.062500000, (0 missing)
##       campaign_duration  < 30.27    to the left,  improve=0.001831502, (0 missing)
##   Surrogate splits:
##       social_media_count splits as  RLR-,         agree=0.70, adj=0.333, (0 split)
##       campaign_duration  < 36.2     to the right, agree=0.65, adj=0.222, (0 split)
##       goal               < 1550     to the left,  agree=0.65, adj=0.222, (0 split)
##       reward_length      < 5750     to the left,  agree=0.65, adj=0.222, (0 split)
## 
## Node number 4131533: 24 observations
##   mean=0.8333333, MSE=0.1388889 
## 
## Node number 5451472: 16 observations
##   mean=0.0625, MSE=0.05859375 
## 
## Node number 5451473: 10 observations
##   mean=0.5, MSE=0.25 
## 
## Node number 8263064: 9 observations
##   mean=0.1111111, MSE=0.09876543 
## 
## Node number 8263065: 11 observations
##   mean=0.6363636, MSE=0.231405

As you can see, that is one crazy tree. To avoid overfitting, we underwent a process called “pruning.” This process finds the complexity parameter that has the lowest cross-validated error. Although it still produces many branches, it is much more streamlined as compared to the prior iteration. This is the tree we will use to make our final predictions.

index <- which.min(tree$cptable[ , "xerror"])
tree_min <- tree$cptable[index, "CP"]

pruned_tree <- prune(tree, cp = tree_min)
prp(pruned_tree, extra = 1, box.palette = "auto")
## Warning: labs do not fit even at cex 0.15, there may be some overplotting

Accuracty of Complex Tree in Test Set

## [1] 0.7011145

5 Text Analysis

full_description contains the complete project description from kickstarter. Unstructured data like this require more cleaning and transformation to be useful, but have the potential to be a source of rich information. Our application of text analysis had three primary motives:

  1. Examine word frequency with word counts
  2. Visualize word frequency with wordclouds
  3. Contruct topic models
  4. Binary calssification to predict project funding status

5.1 Word Frequency

We began by transforming the strings of text in full_description into a data frame with one word per row. Then we removed English stop words, common words that carry little semantic meaning and are thus immaterial to analyses (e.g., “and”, “the”, “of”). Finally, we determined word counts for the entire dataset.

***

Next, we examined the correlation between word proportions of successful and failed project descriptions. Word proportion represents the percentage of time that a given word is used out of the total number of words in the document. In this case, the documents are the collection of all successful project descriptions and all failed project descriptions. We observed, both visually and in terms of Pearson’s correlation coefficient, that the terms used in successful and failed project descriptions were overwhelmingly similar.

## 
##  Pearson's product-moment correlation
## 
## data:  proportion and Failed Projects
## t = 1167.9, df = 111150, p-value < 2.2e-16
## alternative hypothesis: true correlation is not equal to 0
## 95 percent confidence interval:
##  0.961139 0.962025
## sample estimates:
##       cor 
## 0.9615845

5.2 Wordclouds

Another way to visualize word frequency is by constructing wordclouds, which scale the size of text of a word to match its frequency in the document relative to other words’ frequencies. We constructed a wordcloud for the descriptions from the entire dataset. Unsurprisingly, “project”, “kickstarter”, and “goal” were among the most frequent terms used.


Wordclouds can be a useful way to observe differences in word variety and frequency between different groups of documents. Although they cannot be used in subsequent modeling, they are a tool for understanding unstructured text data and formulating hypotheses. Therefore, we grouped our dataset into documents:

  • by year to identify trends over time, and
  • by funded to identify differences between successful and failed projects

Prior to generating the wordclouds, we also created a custom set of stop words to weed out common terms in our dataset that could mask points of distinction between documents.

In the wordclouds by year, we see that music was initially the most prevalent in 2009, but film began to emerge as the predominant category 2010 - 2011. In 2012 - 2013, games appear as the biggest category. These wordclouds also give us a hint regarding the variety of projects. From 2009 - 2011, the wordclouds become larger and word frequency is less concentrated around the same terms. Abruptly in 2012, the projects seems to become less disparate, but in 2013 variety increases again. This suggests that the degree of project variety on kickstarter may be cyclical; perhaps artists and entrepreneurs in the same field turn to kickstarter after hearing about colleagues’ successes. However, more years of data are needed to verify the hypothesis of three-year periodicity.

## [1] 2009

## [1] 2010

## [1] 2011

## [1] 2012

## [1] 2013

***

In the wordclouds by funding status, we observed a high degree of similarity in both terms and frequency between successful and failed projects. Books seemed more likely to fail due to the higher prevalence of “book” in the failed wordcloud. There also seemed to be more variety in the successful projects wordcloud, perhaps indicating richer project descriptions. But generally, high world frequency may not be the best delineator of successful versus failed projects.

## [1] "failed"

## [1] "successful"


5.3 Inverse Document Freuqency

Sometimes the best way to determine points of difference between two similar documents are the terms which are unique between the two documents, rather than the most frequent terms. For example, two books written by the same author would likely generate similar wordclouds, yet the unique characters and places in the books would enable us to detect which book is which.

To see if this might be the case in our collection of successful and failed projects, we examined the term frequency-inverse document frequency (tf-idf). tf looks for terms that are common; idf decreases the weight placed on commonly used terms in the collection and increases the weight placed on words that are not commonly used in the collection (i.e., common in a few documents). To remove nonsensical words from the analysis, we only considered words with a frequency of greater than 500, which is a reasonably low cutoff in a dataset with 700,000+ unique terms.

The results of this analysis suggest that board games and film are likely to be successful (dice, unlocked, filmmaker(s), expansion, boards, filmmaking, premiere). However, although the games category overall had a high success rate, it appears that games involving war and violence were less likely to receive funding (weapon, battles, security, agent), as were online games (multiplayer, server, playable, modes, animations).


5.4 Topic Modeling

The analyses in the previous section have focused on the “bag-of-words” approach and word frequency as a method for natural language processing, the means by which computers make sense of human language. Although this is a common and useful approach, there are other useful ways to describe text data.

One such method is topic modeling. Topic models assume that word or groups of words (called n-grams) which appear frequently together in a dataset are explained by underlying, unobserved groups (called topics). By examining word or n-gram overlap in the documents comprising a dataset, these topics can be detected. Although the computer cannot provide a semantic label for the topics, a human who is familiar with the dataset could examine the top words and determine a theme.

5.5 Latent Dirichlet allocation

We chose Latent Dirichlet allocation (LDA) as our statistical model for topic detection. LDA examines text by word frequency and co-occurence in documents, which are individual project descriptions in our case. LDA assumes that each document covers a small number of topics and a small set of words it uses frequently, and so it is good at assigning documents to topics.

To feed data into the model, we first processed the text to transform it to lowercase, remove punctuation, and remove stop words. In this section, we also performed word stemming, which groups words together that have the same root but different suffixes. This process helps ensure that words with the same semantic meaning, but different verb conjugations and the like, are assessed as the same word. As a result, our results show some incomplete word stems.

After processing the text, we used it to generate documents, a vocabulary of terms in the dataset, metadata to construct the model. Consistent with our tf-idf analysis above, we only considered terms that appeared in at least 500 documents. We ran iterations of the LDA model specifying both 20 and 40 topics. The model did not reach convergence over 10 or 20 iterations; however, meaningful topics emerged with 20 iterations over 40 topics.

***

Visualizing the results of our topic model, we see some meaningful topics emerge, some centered on the mechanisms of the platform, and others identifying product categories or subcategories. For example, Topic 18 could be labeled Funding Requests and includes terms like “goal”, “donate”, “money”, “raise”, and “reach”.

## Topic 18 Top Words:
##       Highest Prob: goal, donat, will, kickstart, money, rais, reach 
##       FREX: donat, goal, reach, amount, rais, money, dollar 
##       Lift: --noth, deadlin, incent, exceed, donat, fundrais, reach 
##       Score: goal, donat, pledg, kickstart, money, reach, rais

***

On the other hand, Topic 37 seems to describe a certain subcategory of Design and could be labeled Graphic Design with terms like “design”, “print”, “edit”, “poster”, “shirt”, and “sticker”.

## Topic 37 Top Words:
##       Highest Prob: print, edit, will, design, sign, limit, poster 
##       FREX: print, poster, sign, edit, limit, paper, sticker 
##       Lift: ink, poster, sticker, print, paper, shirt, sign 
##       Score: print, poster, edit, sign, design, color, paper

***

The theme of the projects is clear from some topics, although the type of project is not easily distinguished. For example, Topic 6 is about Education, but could span many types of projects.

## Topic 6 Top Words:
##       Highest Prob: school, learn, student, children, kid, educ, program 
##       FREX: student, school, children, educ, teach, kid, teacher 
##       Lift: teacher, classroom, teach, student, educ, children, school 
##       Score: school, student, children, educ, kid, learn, teach

***

We also visualized the correlations between the 40 topics. The green nodes indicate topics, and the dashed lines represent relatedness between topics. The length of the dashed lines indicate the degree of overlap between two topics. Our topic models are highly related to one another, both in terms of the number of connections and the distance of connections.

***

In natural language processing, data often arrive with little metadata to categorize the text. Although we have project category in our dataset, we have no mechanism, aside from text mining, to determine topic categorization, which may be highly related to success or failure. Therefore, the results of the LDA model could be useful for classification of successful and unsuccessful projects.

6 Exploratory Analysis

6.1 Ex Post Facto

Ex Post Facto variables that are generated after the start of the project. These are interesting to examine and can provide valuable insight into Kickstarter, however, they are not appropriate to use in our predictive models as they are pseudo outcome variables. Some, such as comments, can provide direction to a project creator on what to do mid-project to increase their cahnce of funding.


6.1.1 backers_count

backers_count is a powerful predictor of project funding. We can see that the distribution resembles a logistic function. We found it surprising that even at the top 5% of backers_count there are still projects that are not funded. We hypothesize that these projects have an extremely large goal.


6.1.2 comments_count

The vast majority of projects received fewer than 20 comments. Chance of Funding increases substantially as comments increases. The most notable feature is receiving as few as two comments can increase Chance of Funding by 30%+. We hypothesize that a good project has a causal relationship with more comments. The correlation is enough to advise any creator to make a concerted effort to start a conversation in the comments section of their project.


6.1.3 updates_count

Another solid indicator of funding updates_count. Just as with the other ex post facto variables, the causality is likely reversed as creators are probably more willing to update a project that is getting traction. Given the continued improvements throughout the deciles, it is surely worth regularly providing updates for your project to finish off the funding, or possibly move well past the 100% funded mark.


6.1.4 spotlight

We were surprised to find a variable with 100% predictive power occurring in over 20,000 projects. We dug deeper and found that spotlight denotes projects to be featured on Kickstarter’s recently funded page! Kickstarter Spotlight

## # A tibble: 2 x 3
##   spotlight `n()` `mean(funded)`
##       <dbl> <int>          <dbl>
## 1         0 21831              0
## 2         1 27519              1

6.2 Day Zero

Day Zero variables are any which can be observed and/or controlled at the start of the project. These are the most important for our predictive models as they allow us to predict a project’s funding before any Kickstarter activity.


6.2.1 goal

One of the most obvious, and ultimately significant predicters is goal. It shows a clear downward trend in funding success as the amount increases. While this is intuitive, it is worth noting that it does not appear linear. For this reason, we used the quantile function to account for this distribution.


6.2.2 category

Some categories never fail in this dataset (only considered if n > 50):

  • design/product design (1098 projects)
  • film & video/documentary (2202 projects)
  • film & video/shorts (3513 projects)
  • games/tabletop games (1064 projects)

Most successful parent categories (only considered if n > 100):

  • 7 1,725 projects 81.2% successful
  • 11 12,087 projects 65.2% successful
  • 14 14,635 projects 59.2% successful

Least successful parent categories (only considered if n > 100):

  • 18 8,725 projects 39.7% successful
  • 16 1,638 projects 46.2% successful
  • 12 4,125 projects 46.9% successful
## # A tibble: 15 x 10
##    category    count success_rate avg_goal med_perc_funded avg_perc_funded
##    <fct>       <int>        <dbl>    <dbl>           <dbl>           <dbl>
##  1 music       14635         59.2    7589.           102.             117.
##  2 film&video  12087         65.2   22409.           102.             301.
##  3 publishing   8725         39.7    7951.            19.8            336.
##  4 art          6122         51.2    9139.           100              260.
##  5 games        4125         46.9   38009.            41.2           1214.
##  6 design       1725         81.2   12981.           130              487.
##  7 technology   1638         46.2   68119.            47.0            195.
##  8 crafts         61         96.7    3235.           111.             146.
##  9 comics         57        100     11760.           176.             364.
## 10 theater        57        100      5994.           113.             127.
## 11 food           45        100     19737.           116.             147.
## 12 fashion        36        100     18178.           136.             580.
## 13 journalism     15        100     23405            111.             139.
## 14 dance          11        100      3165.           120.             120.
## 15 photography    11        100      9061.           166.             218.
## # ... with 4 more variables: avg_backer_count <dbl>,
## #   med_backer_count <dbl>, avg_contribution <dbl>, med_contribution <dbl>

The distribution of projects by category shows Kickstarter has an intense focus on creative projects. We hypothesize that the minimal appearance of some categories suggests that Kickstarter’s classification system tends to favor large, general grouping. It may also be arbitrary in some instances as many dance and photography projects could readily be placed in art.

*** > The chance of funding does not follow a similar pattern to the category frequency distribution. In fact, the sparsely populated categories have near perfect funding rates. Further investigation into these anomalies, such as exploring correlation to variables such as spotlight may reveal a selection bias for obscure classification.


6.2.3 ‘launched_at’

The number of projects increased exponentially 2009 - 2012 and seemed to be increasing more gradually after 2012. We only collected data through December of 2013 and anticipate continued growth for subsequent years.

We explored fundy by mo_launched to see if seasonality impacts Kickstarter. The most dramatic dips occur in May and December. This is consistent with our understanding of financial markets in general… they slow down early summer and have much lower volume around the holiday season.


6.2.4 country

The majority of projects are based in the United States. Domestic projects have a success rate about 7% higher than international projects. We believe two factors drive this difference. First, Kickstarter is a U.S. based company and will, therefore, better meet the needs of its customers. Secondly, crowdfunding requires a critical mass of people to support a project ecosystem. As backer are most likely to fund projects in their country, any new regional expansions will have lower success rates while the critical mass develops.

## # A tibble: 5 x 3
##   country count funded_rate
##   <fct>   <int>       <dbl>
## 1 US      47007       0.561
## 2 GB       1986       0.492
## 3 CA        278       0.464
## 4 AU         54       0.556
## 5 NZ         25       0.52
## 
## Call:
## lm(formula = funded ~ usa, data = df_country)
## 
## Residuals:
##     Min      1Q  Median      3Q     Max 
## -0.5610 -0.5610  0.4390  0.4390  0.5096 
## 
## Coefficients:
##             Estimate Std. Error t value Pr(>|t|)    
## (Intercept)  0.49040    0.01026  47.814  < 2e-16 ***
## usa          0.07058    0.01051   6.717 1.88e-11 ***
## ---
## Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
## 
## Residual standard error: 0.4965 on 49348 degrees of freedom
## Multiple R-squared:  0.0009133,  Adjusted R-squared:  0.0008931 
## F-statistic: 45.11 on 1 and 49348 DF,  p-value: 1.88e-11

6.2.5 photo_key

There are very few projects that do not at least have a photo. Consequently, a t-test shows no significant difference between having and not having a photo. This is probably not because photos don’t matter, but rather because the sample with no photo is too small to have statistical power.

## # A tibble: 2 x 3
##   photo_key `n()` `mean(funded)`
##       <dbl> <int>          <dbl>
## 1         0    25          0.68 
## 2         1 49325          0.558
## 
##  Welch Two Sample t-test
## 
## data:  funded by photo_key
## t = 1.2854, df = 24.026, p-value = 0.2109
## alternative hypothesis: true difference in means is not equal to 0
## 95 percent confidence interval:
##  -0.07413234  0.31899802
## sample estimates:
## mean in group 0 mean in group 1 
##       0.6800000       0.5575672

6.2.6 video_status

We hypothesized that video_status would be a powerful predictor as it is a proxy for whether or not the project has a video. We can see that the t-test ’video_status` to statistically significantly impact the success of the project.

df_engr %>%
  group_by(video_status) %>%
    summarise(n(), mean(funded)) %>%
  ungroup(video_status)
## # A tibble: 2 x 3
##   video_status `n()` `mean(funded)`
##          <dbl> <int>          <dbl>
## 1            0  8882          0.408
## 2            1 40468          0.591
t.test(funded ~ video_status, data = df_engr)
## 
##  Welch Two Sample t-test
## 
## data:  funded by video_status
## t = -31.728, df = 13074, p-value < 2.2e-16
## alternative hypothesis: true difference in means is not equal to 0
## 95 percent confidence interval:
##  -0.1940137 -0.1714361
## sample estimates:
## mean in group 0 mean in group 1 
##        0.407791        0.590516

6.3 Social media connectedness

Social media shows an impact. Facebook seems to be the strongest and Youtube has a negative coefecient. Our hypothesis is that Facebook and Twitter may be used for promotion, while creators focusing on YouTube may over rely on their product content. Yet the most successfull creators have all three, which supports that YouTube is effective when paired with a comprehensive social media campaign.

#facebook
df_engr %>%
  group_by(facebook) %>%
    summarise(n(), mean(funded)) %>%
  ungroup(facebook)
## # A tibble: 2 x 3
##   facebook `n()` `mean(funded)`
##      <dbl> <int>          <dbl>
## 1        0 36654          0.541
## 2        1 12696          0.605
#twiter
df_engr %>%
  group_by(twitter) %>%
    summarise(n(), mean(funded)) %>%
  ungroup(twitter)
## # A tibble: 2 x 3
##   twitter `n()` `mean(funded)`
##     <dbl> <int>          <dbl>
## 1       0 46741          0.554
## 2       1  2609          0.617
#youtube
df_engr %>%
  group_by(youtube) %>%
    summarise(n(), mean(funded)) %>%
  ungroup(youtube)
## # A tibble: 2 x 3
##   youtube `n()` `mean(funded)`
##     <dbl> <int>          <dbl>
## 1       0 45570          0.560
## 2       1  3780          0.528
#social_media_count
df_engr %>%
  group_by(social_media_count) %>%
    summarise(n(), mean(funded)) %>%
  ungroup(social_media_count)
## # A tibble: 4 x 3
##   social_media_count `n()` `mean(funded)`
##   <fct>              <int>          <dbl>
## 1 0                  34484          0.543
## 2 1                  11226          0.594
## 3 2                   3061          0.581
## 4 3                    579          0.615
df_engr %>% 
  ggplot(aes(x = social_media_count, y = funded)) +
  stat_summary(geom = "bar", fun.y = "mean", fill = "#332288") +
  labs(title = "Funding By Social Media Count",
       x="Social Media Count",
       y="Chance of Funding")


6.3.1 campaign_duration

Interestingly, campaign duration has an inverse relationship to the likelihood of receiving funding; longer campaign are associated with higher failure rates.


6.3.2 description_length

We believe that a description can have a significant impact on a project’s funding. In this projects next steps, we hope to extract more meaningful variables from the text analysis we have conducted. However, even in the most basic form, description_length shows a clear trend. It improves the chance of funding and then levels off. This implies that putting in the effort to make a detailed description is worthwhile. However, excessive wordiness and/or novel style descriptions quickly hit diminishing returns.


6.3.3 rewards

We suspected that how a creator structures their reward scheme would have a significant impact on the project also. Due to time constraints and the complex nature of its nested data structure, for this iteration, we explored the schemes length. We see a steep slope that flattens with a final jump at the end. This tells the story. The first bucket consists primarily of projects without rewards and that backers are not impressed. By the fifth bucket, we see diminishing returns, likely due to unnecessary detail and complexity. In the last bin, it looks like some creators go the extra mile and their backers appreciate it.

df_engr %>% 
  ggplot(aes(x = reward_length_10, y = funded)) +
  stat_summary(geom = "bar", fun.y = "mean", fill = "#332288") +
    labs(
    title = "Funding By Rewards",
    x="Length of Rewards", 
    y="Chance of Funding")

Not Fully Explored More granular location variables would require more cleaning and may produce regional insights.

  • location_name
  • location_state
  • location_type
  • fx_Rate
  • profile_blurb
  • profile_state

Rejected We looked at this, yet did not find them to be predictive

  • project_id
  • disable_communicaiton
##$project_id
#A random identifier, cannot easily observe a pattern
range(db_cleaned$project_id)
## [1]      21109 2147466649

7 Data Dictionary

Name Description Type Values
funded Amount pledged compared to goal by deadline factor 0: failed; 1: successful
comments_count Number of comments users post during campaign integer 0 - 393041
goal Goal set at beginning of campaign, in local currency numeric 0.01 - 21474836
updates_count Number of times page was updated during campaign integer 0 - 301
backers_count Number of backers that contributed to the project integer 0 - 87142
full_description Text description of the project character N/A
campaign_duration Days between launch and deadline numeric 1.5 - 91.96
avg_contribution Mean amount pledged per backer, in local currency numeric 1 - 9606
percent_funded Percent of goal received (%) numeric 0 - 4153501
spotlight If successful, indicates if project is featured factor 0: no spotlight; 1: spotlight
staff_pick Staff selected to receive ‘Projects We Love’ badge factor 0: no badge; 1: ‘Projects We Love’ badge
usa Indicates location in the US or in another country factor 0: other countries; 1: USA
social_media Indicates if creator provided any links to social media factor 0: no links to social media; 1: one or more links
facebook Indicates if creator linked to Facebook factor 0: no Facebook link; 1: Facebook link provided
twitter Indicates if creator linked to Twitter factor 0: no Twitter link; 1: Twitter link provided
youtube Indicates if creator linked to YouTube factor 0: no YouTube link; 1: YouTube link provided
social_media_count Number of social media links provided by creator integer c(“0”, “1”, “2”, “3”)
photo_key Indicates if the project page had a photo factor 0: no photo; 1: has photo
video_status Indicates if the project page had a video factor 0: no video; 1: has video
reward_length Number of characters in reward structure description integer 76 - 136827
description_length Number of characters in full project description integer 0 - 140229
date_launched Date of project launch (yyyy-mm-dd) Date 2009-04-24 to 2013-12-18
mo_yr_launched Month and year of project launch (mm-yyyy) Date 01-2010 to 12-2013
yr_launched Year of project launch (yyyy) Date 2009 - 2013
mo_launched Month of project launch (mm) Date 01 - 12
goal_20 Ventile assigned to goal factor c(“[0.01,500]”, “(500,750]”, “(750,1e+03]”, “(1e+03,1.5e+03]”, “(1.5e+03,1.8e+03]”, “(1.8e+03,2e+03]”, “(2e+03,2.5e+03]”, “(2.5e+03,3e+03]”, “(3e+03,3.5e+03]”, “(3.5e+03,4.5e+03]”, “(4.5e+03,5e+03]”, “(5e+03,5.2e+03]”, “(5.2e+03,7e+03]”, “(7e+03,8e+03]”, “(8e+03,1e+04]”, “(1e+04,1.2e+04]”, “(1.2e+04,1.6e+04]”, “(1.6e+04,2.5e+04]”, “(2.5e+04,5e+04]”, “(5e+04,2.15e+07]”)
description_length_10 Decile assigned to full description length factor c(“[0,754]”, “(754,1.11e+03]”, “(1.11e+03,1.44e+03]”, “(1.44e+03,1.81e+03]”, “(1.81e+03,2.22e+03]”, “(2.22e+03,2.74e+03]”, “(2.74e+03,3.46e+03]”, “(3.46e+03,4.58e+03]”, “(4.58e+03,6.64e+03]”, “(6.64e+03,1.4e+05]”)
reward_length_10 Decile assigned to reward description length factor c(“[76,2.62e+03]”, “(2.62e+03,3.71e+03]”, “(3.71e+03,4.61e+03]”, “(4.61e+03,5.49e+03]”, “(5.49e+03,6.43e+03]”, “(6.43e+03,7.52e+03]”, “(7.52e+03,8.86e+03]”, “(8.86e+03,1.08e+04]”, “(1.08e+04,1.45e+04]”, “(1.45e+04,1.37e+05]”)
category One of 15 buckets categorizing project field factor art, comics, dance, design, fashion, food, film&video, games, journalism, music, photography, technology, theater, publishing, crafts

8 Acknowledgements

The following resources were invaluable to the completion of the project: